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Energy Storage System Buyer’s Guide 2024

Feb. 04, 2024

By SB Staff

The energy storage system market for homes and businesses is crowded with entries from all types of suppliers. Legacy PV inverter and module brands are rounding out their product portfolios. Off-grid and portable power providers are now offering battery systems for grid-tied customers. Smart home and high-end consumer electronic companies want to fold power and energy management into their offerings.

This 2024 Energy Storage System Buyer’s Guide is a snapshot of all that and more. Each manufacturer explained what’s new and what contractors need to know about their energy storage product offering.

We also asked, considering the volume of inverter, ESS and battery options available, what really differentiates one from the next? What should a solar pro be considering?

“Mostly ESS systems are becoming similar with some variation in size, capacity, and specifications,” says Kam Sihota, Director of Residential ESS PM at Qcells. “Beyond the basics of sizing the energy and power for proper application, the homeowner may be interested in the aesthetics, warranty, life-cycle support capabilities and supplier bankability. The installer may care more about how long it takes to install and commission, or ease of installation of such an ESS system and what design flexibility is possible with the components of the system. In other words, does the solution allow a diverse set of applications and configurations?”

“Even though energy hardware is the vessel of the home, it’s the energy software that provides the largest impact for homeowners and offers the most room for improvement,” says Vincent Ambrose, Chief Commercial Officer, FranklinWH. “Software is the main differentiator that can improve the value of a home battery system and essentially, offer homeowners full energy freedom from the grid.”

“Home battery systems are becoming commoditized from a performance standpoint, and we aren’t seeing much brand preference from homeowners, so installers have a lot of flexibility in which brand and product to choose,” says Vinnie Campo, Co-Founder and CEO of Haven Energy. “The primary differentiators that we see are 1) integrated smart circuits that allow load shedding and smart energy management for two to five large loads and 2) electronically controlled panel limits, which enable software to limit backfeed to the main panel to stay under 120% rule limits. We find these two features particularly useful in system engineering to minimize the balance of system and overall costs to install. And though not every battery brand has these features, we do see them coming in product upgrades and expect them to be pretty ubiquitous in 1-2 years.”

“Scalability is another key consideration,” says Austin Heller, Sr. Product Manager with Renogy. “Some home battery systems are modular and can be expanded by adding more battery units. This scalability is valuable as it allows homeowners to adapt the system to their changing energy requirements. Cost is a significant factor for both homeowners and installers. While upfront costs are important, long-term cost-effectiveness, including considerations like maintenance, replacement, and warranty coverage, should also be evaluated.”

“Serviceability is an important element in the home battery market that is unfortunately often overlooked,” says Michael Menendez, Head of Product with Blue Planet Energy. “The market has been flooded with fully integrated systems where the ability to change or service different components is entirely lost. This means that if a single component breaks down, whether that be a component of the battery or inverter, the entire system may be rendered inoperable or useless. This leads to a lot of waste in the industry and drives up the carbon footprint of these products.”

“Hybrid inverters are reshaping the residential market, offering the most power and fastest installation within the smallest project footprint,” says John Cromer, Senior Technical Manager, Sol-Ark. “For decades, grid-tied customers have wanted their solar arrays to provide power during grid outages. Delivering undersized backup power systems to the market is not the answer. Large hybrid inverters improve system performance, reduce system cost and complexity by putting all grid interconnection, solar, and battery power control into a single box. Enabling battery choice then allows the installer to price out the most expensive system component (the battery) while staying up-to-date on evolving feature sets such as battery heating options, EMP-hardening, hardware stack ability, without becoming locked into a single platform.”

“Pro installers should also consider that many homeowners really need a battery system for 1-2 days when temporarily without power — that can mean a sizable investment for a system that has limited use,” says Eric Villines with Anker. In these cases, pro solar installers should consider new hybrid solutions on the market that not only provide home energy backup but are also portable and can be used by consumers with camping or doing activities off the grid. This is a way to pro solar installers can help their customers get more value out of their investment or even reach into apartment and home renters as new customers.

Is the home battery system you’re installing equipped with intelligent software that can adapt to local utility rates and automatically charge and discharge to ensure homeowners get maximum savings? “ asks Magnus Asbo, Senior Director of Technical Marketing North America, SolarEdge Technologies.

“It is important for installers to be aware of the critical differentiators between systems including battery chemistry, system integration capabilities, and safety certifications,” says Sequoya Cross, Vice President of Energy Storage for Briggs & Stratton Energy Solutions. “Battery chemistry has a lot of implications to the overall safety, longevity, cycle life, performance, and operation limitations of the battery and the overall system it is a part of. LiFePO4 chemistry eliminates cobalt, a conflict mineral used in other Lithium-Ion batteries, reducing the risk of thermal runaway with fire propagation, operating temperature constraints and toxic coolants.”

Food for thought as you scroll through the options below. Click on a product name to expand the box for more information.

Bluetti

What’s new? BLUETTI released two new home energy storage products in 2023, EP900 and EP800. EP900 is on/off grid ESS while EP800 is off-grid ESS. Website

BLUETTI EP800 Energy Storage System

This is a Hybrid solar + storage PV inverter, battery inverter/charger and microgrid controller for Off-grid Residential

Is the battery integrated with the system or sourced separately?  Integrated BLUETTI batteries

Basics: BLUETTI EP800&B500 Energy Storage System uses LiFePO4 battery. This ESS is modular and scalable with up to 4 batteries. It’s an off-grid ESS and can work seamlessly with different solar panels. It’s IP65 rated and has a warranty of 10 years. It supports both AC and DC coupling.

  • 7600W
  • 9.9 to 19.8 kWh
  • 120/240V
  • 9000W Solar Input
  • NEMA 4X / IP65

 Warranty: 10-year

Panasonic

What’s new? At RE+ 2023, Panasonic enhanced its solar + energy storage product line with The EVERVOLT 430HK2/420HK2 Black Series Modules. These are the most powerful modules offered by Panasonic, which pair perfectly with The EVERVOLT Home Battery System. This is a modular residential storage system that supports both DC and AC coupling, making it a versatile solution for both new and existing solar installations. The EVERVOLT Home Battery System combines a hybrid inverter, lithium-ion battery and the new EVERVOLT SmartBox. Website

For more on the full EVERVOLT product line and to learn 5 Ways to Maximize Home Energy Storage, download this new special report.

EVERVOLT

  • Power sizes available from 9 kWh, 13.5 kWh, and 18 kWh
  • Voltage ranges from 102.4V, 153.6V and 204.8V
  • Rated 6,000 cycle lifespan and has a 98% peak efficiency rating and 97.5% CEC weighted efficiency
  • Enables 200% PV oversizing
  • 160 A AC current helps keep more appliances running continuously

This is a Full Energy Storage System For grid-tied residential

Basics: The EVERVOLT Home Battery System is a modular residential storage system that supports both DC and AC coupling, making it a versatile solution for both new and existing solar installations. This fully integrated energy storage solution combines a hybrid inverter, lithium-ion battery and the new EVERVOLT SmartBox, to offer maximum 18 kWh lithium-ion battery capacity.

To store excess power during outages, homeowners can have up to four EVERVOLT Home Batteries stacked to a single EVERVOLT SmartBox to achieve up to 30 kW of power and 72 kWh of usable energy to provide maximum power and meet even the heaviest demands. The cabinet is compact and can be installed indoors or outdoors (but check requirements for outdoor installs). It can be mounted to either the floor or wall. The EVERVOLT Home Battery System also comes with an app for managing, monitoring, and controlling capacity and usage.

Warranty: This system is protected by the EVERVOLT AllGuard All System Warranty which protects the system for up to 12 years. When installed by a Panasonic Authorized installer, it offers customers comprehensive protection covering product, performance and labor across all major systems and components of the solar installation.

Is the battery integrated with the system or sourced separately? BMS is integrated within the battery storage system

Battery brands with BMS integration: Panasonic

Savant

What’s new? As a smart home and energy leader, Savant is known for innovation in whole home control, flexible load management and scalable battery storage. For 18-plus years, installers have come to expect the most advanced features from Savant technologies, including efficient deployment and long-term service, plus software upgradability to obtain the latest functionality. With more than 5,000 dealers around the world, Savant has two decades of experience offering world-class training and support for installers and ensuring that home and building owners receive the best possible user experience. From providing award-winning products to education to on-site installation support, Savant is invested in helping businesses grow. Website

Savant Power Storage 20

This is a Full Energy Storage System for residential, C&I and microgrid applications

  • 12.5 kW Continuous Output w/ 35 kVA Surge Capability
  • 20kWh LFP Storage, stackable up to 125kW/200kWh Applications
  • Quick-load 48 lb Battery Modules
  • Support for AC or DC-Coupled Solar
  • Integrated Load Management Platform

Basics: Solar installers can offer their customers more convenience, energy savings and resiliency with Savant Power Storage 20. Featuring a scalable inverter and battery storage combined with an award-winning app, Savant’s groundbreaking solution makes it simple for users to monitor and control their energy use and shed loads during an outage to extend battery life. Savant also helps installers grow their business. Unlike other complex and time-consuming solutions, Power Storage 20 can be installed by one person in 2-3 hours allowing installers to get in and out of jobs quickly and complete multiple jobs in a single day.

Is the battery integrated with the system or sourced separately? Integrated

Warranty: 10 years

Learn more in this on-demand Solar Builder Webinar: “Savant Power: Whole Home Energy Management“

SMA America

What’s new? SMA America’s focus on upcoming 2024 products reflects their dedication to delivering a comprehensive residential energy offering, recognized as the SMA Home Energy Solution. The SMA Home Energy Solution combines solar, backup solutions and software all into one home energy solution. The new Sunny Boy Smart Energy hybrid inverter, SMA Backup Secure, SMA Energy App and SMA 360° App work seamlessly together for the ultimate residential experience. The Sunny Boy Smart Energy 2-in-1 hybrid inverter features 200% DC/AC capabilities, 3 MPPT optimizing channels and power class ranges of 3.8-7.7kW. SMA Backup Secure allows for access up to 1,900W of power with a secure outlet connected directly to the inverter. Website

SMA Home Energy Solution

At the heart of the SMA Home Energy Solution is the Sunny Boy Smart Energy, a 2-in-1 hybrid inverter that combines the functions of a PV and battery inverter into a single unit, minimizing the need for electrical upgrades. With power classes ranging from 3.8-7.7kW, homeowners can choose what best suits their needs. Noteworthy features include 200% DC/AC design capabilities and 3 MPPT optimizing channels. The optional SMA Backup Secure provides access up to 1,900W of power through a secure outlet connected directly to the inverter. The SMA 360° app simplifies installation, designed to support a seamless transaction from initial customer contact all the way through to commissioning. The new, modern design includes a curved, easy-open cover and quick commissioning. SMA 360° app saves installers time and money. Scan, tap and connect multiple devices from your mobile device or tablet

Flexibility

  • 200% DC/AC design capability PV
  • Hybrid and AC coupling in one
  • 3 MPPT optimizing channels

Easy installation

  • Smaller and lighter, eases mounting
  • 2-in-1 solution saves time, wall space and electrical upgrades
  • Rapid commissioning via built-in SunSpec Certified RSD transmitter

APsystems

What’s new? APsystems introduced its APstorage ELS battery inverter line, which is battery-agnostic. This means it enables seamless connection with various leading battery models so customers can choose batteries that suit their needs. APsystems offers its APbattery for customers who don’t have a battery preference. The ELS series integrates seamlessly with APsystems’ DS3 microinverters, creating a fully integrated solar and storage solution. These smart ELS battery inverters feature intelligent energy management, supporting backup, self-consumption, and time-of-use modes to secure critical loads and enhance energy savings. Website 

APstorage

  • Maximum continuous output power: 5,000VA
  • Battery input voltage: 40-60V
  • Nominal output voltage: 240V
  • Peak output power: 7,500VA (10s)
  • 97% efficiency

This is a Battery inverter/charger  OR Full Energy Storage System For grid-tied residential (Off grid possible with DS3 microinverters)

Basics: The APstorage solution is a battery agnostic AC-coupled solution. Installers can choose from a variety of compatible batteries in our list, including HomeGrid and Fortress. If a preferred 40-60V battery is not listed, contact our team at sales.usa@apsystems.com to request compatibility testing with our ELS. If a homeowner customer or installer do not have a battery preference, APsystems offers the APbattery which integrates seamlessly. Choice of adjustable modes include: battery backup (possible only with DS3 microinverters), self-consumption, and time-of-use. In off-grid mode, the ELS 5k PCS creates a 5kW microgrid backup on a subpanel. The ELS requires an APsystems-offered transformer to operate in off-grid mode. Can handle a 7.5kW 10s surge and has a built-in ATS.

Is the battery integrated with the system or sourced separately? We offer both.

Battery brands with BMS integration: List here https://usa.apsystems.com/document/apstorage-battery-compatibility-list/

Warranty: 10 years

APstorage battery

Type of battery chemistry: LFP

Systems / Inverters that communicate with BMS: APstorage ELS 5k PCS

Basics: The APbattery comes in 5.76kWh and 6.5kWh models, and are UL9540 both individually and combined with the APstorage ELS 5k PCS.

APbattery-48V5.76kWh

  • IP65
  • 76kWh
  • 48VDC, 50A charge, 100A discharge
  • 10C – 45C
  • 90% DOD

APbattery-51.2V6.5kWh

  • IP55
  • 6.5 kWh
  • 51.2 VDC, 100A charge, 100A discharge
  • -20C – 45C
  • 94.5% DOD

Warranty: 10 years

Website: https://usa.apsystems.com/apstorage/

Enphase

What’s new? The IQ Battery 5P, Enphase’s most powerful home battery yet, is designed to meet the growing demand for energy security and to maximize value with the new rate structures. Overall, the versatility of Enphase’s technology allows it to best fit the needs of today’s market. The Enphase Energy System, powered by the revolutionary IQ8 Microinverter and IQ Battery 5P, can be configured for self-consumption, savings, or full backup functionality. It can also be configured without backup capabilities, also known as a “grid-tied” system. Website

Enphase Energy System

This is a Full Energy Storage System For Off-grid and grid-tied residential

  • IQ Battery 5P power rating: 3.84kW
  • IQ Battery 5P energy capacity: 5.0kwh
  • IQ Battery 5P peak output power: 7.68 kW (3 seconds), 6.14 kW (10 seconds)
  • IQ8 Microinverter peak output power: 245 VA
  • IQ8 Microinverter maximum continuous output power: 240 VA

 Basics: The Enphase Energy System combines solar, battery and software together in an all-in-one home energy system. The Enphase Energy System leverages the power of the industry’s first microgrid-forming IQ8 Microinverters, with split-phase power conversion capability to convert DC power to AC power efficiently. This allows for fast response times that eliminate battery sizing limitations. The IQ8 Microinverter allows the Enphase Energy System to form a microgrid and use sunlight backup during outages - even without a battery. The IQ Battery 5P provides battery backup and home energy management capability. The Enphase App provides a powerful companion for the system that allows homeowners to see all of their energy data in a single app, both in real-time and as it fluctuates over time.

Is the battery integrated with the system or sourced separately? Both

Warranty:

  • IQ8 Microinverter: 25-year limited warranty
  • IQ Battery 5P: 15-year limited warranty

 

IQ Battery 5P

Type of battery chemistry: Lithium iron phosphate (LFP)

  • Power rating: 3.84 kW
  • Energy capacity: 5.0 kWh
  • Peak output power: 7.68 kW (3 seconds), 6.14 kW (10 seconds)
  • DC round-trip efficiency: 96%
  • AC round-trip efficiency: 90%

Basics: The IQ Battery 5P is an all-in-one, AC-coupled microinverter-based storage system and the most powerful Enphase battery yet. With 3.84 kW of continuous power and 7.68 kW peak power for three seconds, the IQ Battery 5P allows homeowners to start and operate power-hungry devices – like HVACs and pool pumps – during outages. It uses wired communication for quicker commissioning times. Its modular design, configurable up to 80kWh, means installers can easily build the right size system for customers.

The IQ Battery 5P integrates with the Enphase Energy System and provides backup capability when installed with IQ System Controller 3/3G. It can also be installed in a grid-tied, self-consumption configuration, without backup, for a lower upfront investment. For California customers, the IQ Battery 5P is optimized for NEM 3.0, exporting power to the grid at optimal times for maximum economic benefits.

Warranty: 15-year limited warranty up to 6,000 cycles | Website

Generac

What’s news? Generac Grid Services, part of Generac Power Systems, has been selected for negotiations by the U.S. Department of Energy (DOE) to receive a $50 million grant to install whole-home energy solutions in homes across Massachusetts. The funds are part of the federal Grid Resilience and Innovation Partnerships (GRIP) Program, which seeks to enhance grid flexibility and improve the resilience of the power system against growing threats of extreme weather and climate change. Website

PWRcell Solar + Battery Storage System

  • Up to 18 kWh usable energy
  • Up to 9 kW continuous power
  • 97% CEC weighted efficiency
  • 7.6 kW Inverter
  • 50 A, RMS 2-sec motor starting current

 This is a Full Energy Storage System For grid-tied residential

 Basics:  The Generac PWRcell Solar + Battery Storage System features an outdoor-rated battery cabinet, a 7.6 kW single-phase inverter, an automatic transfer switch, and intelligent load management. PWRcell’s modular design was created with installers in mind, allowing the system to range from 9 – 36 kWh capacity on a single inverter. With up to 9kW continuous backup power, the largest residential battery capacity in a single cabinet, and advanced load management from PWRmanager, Generac’s PWRcell is the ultimate clean whole home backup solution.

 Battery brands with BMS integration: Compatible with Generac PWRcell only.

Warranty: 10 years

PWRcell Battery

Chemistry: Lithium Nickel Manganese Cobalt (NMC)

  • Up to 18 kWh usable energy
  • Up to 9 kW continuous power
  • 50 A, RMS 2-sec motor starting current
  • 96.5% roundtrip efficiency
  • 380 VDC nominal voltage

 Basics:  The PWRcell Battery features a single cabinet with up to 18 kWh. Stack up to two cabinets on a single PWRcell Inverter for up to 36 kWh battery capacity and 11 kW continuous backup power. This flexibility allows PWRcell to support a range of storage configurations to suit a variety of needs. The PWRcell Battery also features an outdoor-rated enclosure. The heaviest component is listed at 75 lbs.

Systems / Inverters that communicate with BMS: Communication with the PWRcell Inverter only.

 Warranty: 10 years or 7.56 MWh of energy throughput per module, whichever comes first

 Website

Solis

What’s new? Established in 2005, Solis is a leading global manufacturer of solar inverters, currently #3 in inverter shipments worldwide. New to its energy storage product portfolio are: 1) the SolisHub (SolisHub-200A-US) for whole home backup and energy management. 2) the S6-EH1P (12-16)K-L-US Low voltage hybrid inverter for residential applications that can accommodate larger, more efficient PV modules with a string current of up to 20A and 200% surge power backup capability for 10 seconds. 3) S6-EH3P(30-60) K-H-US – 30-6KW Hybrid inverter for C&I applications that features up to 4 MPPTs and 20A DC input current, allowing flexible PV array design. 4) The 2.75MW and 4.2 MW Skid Solution for utility-scale. Solis is set to launch a 350KW utility-scale inverter and complete skid solution in 2024. Website

Residential S6 hybrid inverter

This is a Hybrid solar + storage PV inverter and battery inverter/charger for off-grid Resi, grid-tied and hybrid residential applications.

  • Size: 3.8-11.4KW
  • DC input current per MPPT: 16A maximum PV input current and 25.6A short circuit current
  • Surge power capacity: 18.2KW /76A for 10 sec
  • Operating modes: Self use, Feed in priority, Peak shaving, Backup, Off-grid

Basics: The S6 (Series 6) hybrid energy storage inverter is the latest Solis US model certified to UL 1741 SA & SB. The selling point is a commitment to an open ecosystem. The S6 is UL 9540 certified with multiple battery brands to provide up to 150 kWh of storage capacity per inverter. This flexibility provides options that not only optimize costs but also enhance supply chain resilience. With the S6 inverter, options range from a basic rapid shutdown (RSD) solution with string level monitoring, to an advanced package with RSD and module-level monitoring, or the premium choice that includes RSD, module-level monitoring, and optimization for the best performance.

S6 has maximum DC input current of 16A and 25.6A short circuit current, per MPPT, enables the system to work with larger and more efficient PV modules, including bifacial modules. Unlike many other competitors, the S6 doesn’t need an external transformer for backup function, it has native 120V/240V rated output voltage and it can handle surge power up to 18.2 kVA for a full 10 seconds in backup mode.

Is the battery integrated with the system or sourced separately? Separately

Battery brands with BMS integration: 

  1. LG Energy Gen3 (RESU Prime 16H and RESU Prime 10H)
  2. Fortress (Ultra-thin Narrow HV)
  3. Soluna (15K Pack HV)
  4. Pylontech (Force H1)

Warranty:  10 years; extendable to 20

For more on the Solis S6, watch this on-demand webinar presentation: “A Close Look at Solis Inverters’ Cutting-Edge Features“

Briggs and Stratton

What’s new? Building on 115 years of power experience, Briggs & Stratton Energy Solutions offers a comprehensive line of intelligent energy solutions, from best-in-class standby generators to scalable energy storage systems (ESS), that residential and commercial markets can rely on to provide energy independence, cost savings, and peace of mind. Some of the latest innovations to come from Briggs & Stratton Energy Solutions include recent optimizations to EnergyTrak for faster commissioning times for installers, enhancements to the SimpliPHI 6 kW Hybrid Inverter that provides even more application flexibility, and the extension to an industry-leading 15-year limited warranty on the SimpliPHI and AmpliPHI Batteries. Website

SimpliPHI Energy Storage System

  • Total Power: Scalable: 6kW to 30kW
  • Battery Capacity: 9.96kWh to 299kWh
  • Voltage: AC: 120/240V, DC battery voltage: 48V nominal
  • Maximum Charge Current: 150A
  • Integrated Dual MPPT Input: 120-550 VDC

 This is a Full Energy Storage System For off-grid residential, grid-tied residential, and residential microgrids.

 Is the battery integrated with the system or sourced separately? Both

Battery brands with BMS integration: All Briggs & Stratton Energy Solution batteries have an integrated BMS. The SimpliPHI and AmpliPHI Batteries have closed loop communications with the EnergyTrak control system and other industry leading inverters.

Basics: The SimpliPHI Energy Storage System (ESS) can independently scale power and energy storage capacity to meet the requirement of any installation — from providing primary power to an entire home or business to simply storing power for times of outage. The SimpliPHI ESS is comprised of the SimpliPHI 6 kW inverter, the EnergyTrak management software, and the SimpliPHI 4.98 kWh battery, which leverages Lithium Iron Phosphate (LiFePO4) chemistry to deliver advanced-level power storage while running longer and safer.

With the addition of EnergyTrak, programming and commissioning time is reduced to a little as ten minutes. Some recent improvements to EnergyTrak include faster over-the-air (OTA) firmware updates, more user-configurable options to schedule system updates, more efficient control for installers to manage inverter functionality during and after initial configuration, and the ability to monitor Briggs & Stratton PHI batteries as well as other batteries that don’t have built-in communications.

Warranty: 15-Year Limited Warranty on the SimpliPHI Battery, 10-Year Limited Warranty on the SimpliPHI 6 kW inverter

SimpliPHI 6 kW Hybrid Inverter

  • Battery Input Voltage: 40 - 62VDC, 48VDC Nominal
  • Loads Supported: 120/240VAC
  • CEC Weighted Efficiency: 96.5%
  • Parallel Stacking: 5 Inverters: 30kW
  • Certifications: UL 1741 SB, IEEE 1547.1-2020, IEC/EN 62109-1&2, EN 61000-6-2&3, EN 61000-3-11&12, Rule 21, PREPA, HECO

 

This is a hybrid solar + storage PV inverter For off-grid residential, grid-tied residential, and residential microgrids.

Basics: The advanced design of the SimpliPHI 6 kW Hybrid Inverter offers versatile applications that seamlessly integrate solar, generator and/or grid power in both AC and DC coupled configurations — on-grid or off. With dual MPPT inputs, customers can maximize PV generation for different string sizes and orientations, up to 7.5kW per input. The dual MPPT can also be easily paired to work with the SimpliPHI 4.9 kWh battery or other batteries.

Warranty: 10-Year Limited Warranty  | Website 

SimpliPHI 4.9 kWh Battery

  • Cycle Life: 10,000+ cycles (@ 80% DOD)
  • DC Voltage – Nominal: 51.2 VDC
  • Rated kWh Capacity: 4.98 kWh DC @ 100% DOD, 3.98 kWh DC @ 80% DOD
  • Operating Temperature: -4° to 140° F (-20° to 60° C)
  • IP Rating: IP65

Type of battery chemistry: Lithium Iron Phosphate (LiFePO4)

 For both the residential and commercial and industrial segments.

 Systems / Inverters with closed loop communication: The SimpliPHI 6 kW Inverter and SolArk inverter.

Systems / Inverters that communicate with BMS: The SimpliPHI Battery communicates with the EnergyTrak management system.

Open Loop communications: Yes

Basics: The SimpliPHI 4.98 kWh Battery integrates with all leading inverters. Like the SimpliPHI Battery, the AmpliPHI 3.8-M Battery offers residential and commercial markets another modular battery power option to meet their application needs. Both are ideal solutions for battery replacement, expansion of existing systems, or as a new installation for residential and commercial systems, on and off-grid, scalable up to 60 batteries.

Warranty: 15-year Limited Warranty | Website 

PHI 3.8-M Battery

  • Operating Temperature: -4° to 140° F (-20° to 60° C)
  • Rated kWh Capacity: 3.87¹ kWh DC @ 100% DOD, 3.10 kWh DC @ 80% DOD
  • Certifications: UN 3480, Lithium ion batteries, 9, II UL, CE, UN/DOT and RoHS, UN 38,3. compliant components - UL 1973, UL 1642, Certified to UL 9540, UL 9540A Fire Safety Tested
  • Operating Efficiency: 98%
  • Cycle Life: 10,000+ (@80% DOD)

Type of battery chemistry: Lithium Iron Phosphate (LiFePO4)

 For residential and commercial and industrial segments.

 Systems / Inverters that communicate with BMS: The PHI 3.8-M Battery is an analog battery for pairing with any Lithium capable inverter.

Open Loop communications: No

 Basics: When combined with the Briggs & Stratton integrated Battery Management System (BMS), accessible 80A DC breaker On/Off switch and overcurrent protection (OCPD), the PHI 3.8-M Battery delivers safer, cost-effective service over the life of both residential and commercial installations, on or off-grid. Compatible with all industry standard inverter charge controllers, the PHI 3.8-M Battery supports balance-of-system equipment and optimizes any power generation source - solar, wind, grid, generator.

Warranty: 10-year Limited Warranty | Website

PHI High-Voltage Battery

  • Nominal voltage range: 200 VDC – 1100 VDC
  • Capacity range: 60 kWh – 2 MWh, each battery: 4.3kWh
  • Battery Management Communication: Modbus, CAN bus, Ethernet
  • Depth of Discharge: 100%
  • Rack mounted/Indoor rated, UL 1973, UL 9540A safety tested, UN 38.3, UN 3480

 Type of battery chemistry: Lithium Iron Phosphate (LiFePO4)

 For both the residential and commercial and industrial segments.

 Systems / Inverters with closed loop communication: The PHI High-Voltage Battery can be paired with all leading commercial inverters.

Systems / Inverters that communicate with BMS: Integrated battery management system.

 Basics: The PHI High-Voltage (HV) Lithium Iron Phosphate (LiFePO4) Battery is optimized with proprietary cell architecture as well as a state-of-the-art Battery Management System (BMS) and stack controllers to deliver on-demand critical power. The modular design of the battery easily scales to meet a range of configurations in which the power, energy and voltage requirements can be tailored to a specific project. With the battery’s inverter-agnostic approach, users can use their own electronics or third-party software platforms. The HV battery can be wired in series to build a system that matches voltage requirements from 200 Vdc to 1200 Vdc and 60 kWh to 2 MWh.

From small to large commercial applications, the High-Voltage battery supports greater control and reliability to achieve peak shaving, load shifting, emergency back-up and demand response functions.

Warranty: 10-year Limited Warranty with variable, extended warranty options based on project needs | Website

Mango Power

What’s new? Mango Power was founded in 2021 by a passionate team of senior product managers and talented engineers. In the summer of 2021, Mango Power launched its first product, the revolutionary Mango Power Union. The Mango Power Union is the world’s first battery system to integrate both home and portable power solutions. This year, Mango is focused on Mango Power M – an all-in-one whole-home backup energy solution. Mango also offers solar pros 1-3 days delivery, professional training, one-on-one installation support, and 24/7 customer services. Website

Oh, btw: Install one Mango Power M and get one Mango Power M free! Limited offer for installers in United States, ends by the November 30.

Mango Power M

This is an All-in-One Whole-home Backup energy system for any segment. It can function as a hybrid solar + storage PV inverter, battery inverter/charger, full ESS, load manager and microgrid controller

  • Capacity: 15kWh-80kWh
  • Output: 12kW (peak Power 24kW)- 120 kW
  • Solar Input: 18 kW; Inside Breaker: 200A
  • Battery Life Cycles: 6000
  • Efficiency: 97.5% (PV to grid) 94.0% (battery to grid)

Basics: Mango Power M includes 200A ATS, RSD Transmitter & AFCI, Auto Generator Start, 2x 200A breaker, and 2m 400A Battery connection cables; it supports whole-home backup without extra boxes. Standard Mango Power M capacity is 15 kWh and can be expanded up to 80 kWh. It provides power for your entire home with a built-in 12 kW hybrid inverter, and allows for stacking up to 120kW, meeting the entire home's energy needs. Mango Power M takes less than 4 hours to install.

The Mango Power M intelligently optimizes battery charging, balancing the voltage of each CATL battery pack. Mango Power M boasts certifications in CA rule21 UL1741 / IEEE1547 / UL1973 / UL1642 / UL9540 & UL9540A.

Is the battery integrated with the system or sourced separately? Yes, integrated.

Battery brands with BMS integration: LFP batteries provided by CATL

 Warranty:  10 +5, a 10-year warranty with the option to purchase an extended 5-year warranty.

Mango Power E

This is a Portable Power Station used for home-back & outdoor scenarios )

  • Capacity: 3.5kWh-14kWh
  • Max Solar Charging: 2000W; Max AC Charging: 3000W
  • Extreme Adaptability: thrives in -20°C to 60°C (-4°F - 140°F)
  • AC output Power: 3kW-6kW
  • Quick Charging 100%: 1.5 hours

 Basics: Mango Power E not only can be used for outdoor lifestyle, but also be used for home backup with mPanel Pro. Its storage capacity (3.5kWh/3kW) is one of the largest portable power station products in the market; by connecting two units with E batteries, it can be expanded up to 14kWh/6kW. Mango Power E can be full charged in 1.5 hours, via solar, grid, and/or a generator. With m-socket Pro, Mango Power E can deliver 240V output, capable of users running large power-consuming appliances such as heaters and dryers. Smart Touch Screen and Smart App enables users to monitor electronic input & output, and to turn on or off electronics remotely.

Battery brand: LFP battery provided by CATL

Warranty: A: 10-year warranty for battery cells   |  Website

 

GoodWe

What’s new? GoodWe, a global leader in solar products and energy solutions with a decade-long expertise in inverters, presents its latest residential solution lineup under the umbrella of EcoSmart Home, tailoring for the energy demands in North America. GoodWe EcoSmart Home offers a “solar plus storage” system, combining its hybrid inverter and lithium-ion battery to create a self- consumption solution. The inverter, boasting a power range of 5-11.4kW, is capable of integrating into various residential systems. The Lynx battery has the scalability from 9.6kWh to 19.2kWh, tailoring its capacity to meet the specific energy requirements of each home. In this “solar plus storage” system, the battery stores self-generated energy during off-peak periods and discharge it when the electricity prices peak, minimizing surplus energy export to the grid. Website

EcoSmart Home

This is a hybrid solar + storage PV inverter, battery inverter/charger and Full Energy Storage System For Grid tied and backup residential.

Basics: The GoodWE hybrid solar + storage products were designed to optimize the installation and commissioning. All code compliance requirements are already included, such as rapid shutdown, Arc-Fault detection interruption. Multiple ways to monitor the system by the installer and user, with flexible connection to the internet, from LAN, Wi-Fi, 4G. The product is integrated and compatible with several batteries available in the US market, including the GoodWE Lynx. Allowing the installer to have flexibility of installation.

  • System ranges from 5KW to 11.4 KW
  • Output voltage 120/240V split phase
  • CEC efficiency 97%
  • Output Apparent Power 2-time nominal for 10s

Is the battery integrated with the system or sourced separately? Separate

Battery brands with BMS integration: Integrated compatible batteries GoodWe Lynx, BYD, LG Resu Prime

Warranty:  10 years plus optional extensions

High-voltage Lynx Home battery

Type of battery chemistry: LFP

 Basics: The GoodWe high-voltage battery Lynx Home FH-US Series is a perfect match for residential energy storage systems in North America. It is compatible with GoodWe ES-US/SBP-US/A-ES/A-BP inverters and offers a wide capacity range from 9.6 kWh to 19.2 kWh per cluster, providing comprehensive energy storage options to meet demanding project requirements from self-consumption optimization to backup power. The stackable self-detecting modules make the system especially simple to install and maintain. Meanwhile, the reliable lithium iron phosphate (LFP) cell technology ensures maximum safety and a longer life cycle.

Systems / Inverters with closed loop communication: yes
Systems / Inverters that communicate with BMS:  yes

Warranty: 10 years

Hoymiles

What’s new? Hoymiles, best known of its lineup of microinverters and rapid shutdown solutions, has released the US version of its single-phase hybrid inverters HYS-LV-USG1. Hoymiles’ hybrid inverters can dynamically switch between power sources depending on energy production, price, and usage. Website

HYS-LV-USG1

This is a hybrid solar + storage inverter

Basics: Covering the power class from 3.8 kW to 11.5 kW and supporting both DC- and AC-coupled systems, they are adaptable to a wide range of scenarios. The up-to-32A MPPT current provides seamless compatibility with all mainstream photovoltaic modules, and the 97.6% maximum efficiency represents a standard unmatched in the industry.

The series supports 120/240V backup power without an external autotransformer and supports a DC/AC ratio of 1.5. The hybrid inverters have integrated arc fault protection and rapid shutdown function for ultimate safety and reliability. The intelligent EMS function supports self-consumption mode, economic mode, and backup mode for diverse scenario applications.

The inverters also allow users to check real-time system data and perform remote O&M via a transfer stick (DTS). Additionally, Hoymiles has designed the inverters to be compact and simple to install, meaning they can be easily integrated into any hybrid system.

Morningstar

What’s new? Morningstar has re-imagined the solar charge controller with GenStar MPPT, the industry’s first fully-integrated solar DC charging system.  In addition, we’ve met installer demand for a “Morningstar of inverters” with an all-new industrial-grade SureSine full line, enabling them to design and install more seamless, all-Morningstar systems in terms of quality and performance. GenStar has the most installer-requested features on-board, including key communications and control functions.  Additional features are easily added via Morningstar’s ReadyRail/ReadyBlock technology.  The SureSine off-grid inverter line consists of six new models from 150-2,500W, with 120 or 230V output and 12, 24 or 48V DC input options. Website 

GenStar

  • Maximum battery current & input current: 60A, 80A or 100A (depending on model)
  •  Maximum input voltage: 200V
  •  Load current: 30A
  •  Peak efficiency: 99%
  • Nominal maximum output/PV input power: up to 5400W/8000W (depending on voltage)

This is a Battery charger For Off-grid Resi / C&I / Microgrids / Industrial, including telecom, Oil & Gas, Security

Is the battery integrated with the system or sourced separately?  Separately

Battery brands with BMS integration: GenStar MPPT supports closed-loop communication with Discover and PylonTech LiFePO4 batteries, through its snap-in ReadyBMS block and its built-in ReadyRail architecture.  It enables installers to add that and other functionality at any time

Basics: The revolutionary GenStar MPPT represents Morningstar’s best engineering in an all-new design, with full, advanced communications and control features built-in– plus the ability to add more technology to any system through innovative ReadyRail/ReadyBlock expansion architecture.  In ESS applications, the ReadyBMS provides two-way closed-loop lithium battery communications, while the ReadyShunt calculates SOC values for any lead-acid battery and viewing them on a mobile device or LiveView web interface

GenStar provides full network integration without extra equipment– Modbus protocol support via 485, Ethernet.MS-CAN connects MS Devices (future proprietary inter-device link.) Bluetooth connectivity for mobile devices; Android and iOS apps for easy connection. Allows for an oversized PV array input, 150% of max power. Its fanless design means efficiency and long-term reliability

Warranty:  5 years

Qcells

What’s new? Qcells’ current residential ESS solution, Q.HOME CORE, is rolling out with expanded capabilities such as cellular connection, including a smaller 3.8 kW Inverter and expanded capabilities for TOU programming, and addressing needs for CA NEM 3.0 application. Coming in the second half of 2024 will be a new generation All-in-One Battery System which pairs seamlessly with Qcells’ new AC Module. Website

Q.HOME CORE

This is a complete end-to-end Residential Energy Storage System For grid-tied residential

  • Up to 30.4 kW power
  • Up to 80 kWh energy
  • Less than 30 mins commissioning
  • DC or AC coupled
  • 98% Inverter efficiency

 Is the battery integrated with the system or sourced separately? Integrated

Basics: The Q.HOME CORE residential ESS system comes as a complete solution that comprises all key components; PV modules, RSD/MLPE, Inverter, Battery, and all controls/communication interface. The system can be applied in a diverse set of applications: PV only, Grid Support or for Back-up applications, partial or whole-home back-up. It can be DC coupled for new sites or AC-coupled for retro-fit to existing PV sites. It can be scaled from a small 3.8 kW/10 kWh system or up to 7.6 kW/20 kWh as a single cabinet or expanded to 30.2 kW/80 kWh by parallel connection of up to four such cabinets. The inverter/battery system is modular and thus very simple to install, indoor/outdoor either floor/wall mounted, and commissioning is simplified via hand-held smart device. The Q.HOME CORE pairs well with Qcells modules.

Warranty: 10-year product and performance warranty

Q.SAVE

 

Type of battery chemistry: Lithium Ferrous Phosphate (LFP)

  • 20 kWh single cabinet
  • 80 kWh for parallel systems
  • 5.8” depth
  • 31.6A discharge for single ESS cabinet 7.6 kW/ 20 kWh
  • NEMA 4X

Basics: Qcells' Q.HOME CORE includes the scalable Q.SAVE battery system and backup interface (Q.HOME Hub). A flexible, scalable design enables a wide range of storage capacities to suit a homeowner's electricity needs; up to 200A whole home backup; standard integrated revenue grade metering; simplified installation and commissioning; compact design and sleek appeal; and integrated PLC rapid shutdown.

Warranty: 10-year product and performance warranty

Check out this episode of the Pitch for more on the Q.HOME CORE:

Enervenue

What’s new?  EnerVenue recently launched its next-gen, metal-hydrogen Energy Storage Vessel. Capacity and power have been improved by 150%, and energy density by 100% compared to previous models. Each ESV is also now individually monitored for temperature, pressure, and voltage. Next-generation ESVs have an ultra-long 30-year/30,000-cycle expected lifespan, and a projected 86% capacity after 30,000 full cycles. ESVs pose zero thermal runaway risk and no risk of fire propagation; deployments require no complex and costly fire suppression or robust HVAC systems. Website 

Energy Storage Vessels (ESV)

Type of battery chemistry: metal-hydrogen

For C&I and microgrid applications

  • Cycle life: 30,000 cycles
  • Capacity retention after 30,000 cycles: 86%
  • Energy Capacity: 3 kWh
  • C-rates: C/2 to C12
  • Peak Round Trip Efficiency: >90% @ 25° C

 Basics: Based on proven, metal-hydrogen technology used by NASA for more than 30 years, EnerVenue Energy Storage Vessels feature an exceptionally long lifespan -- exceeding 30 years / 30,000 cycles -- eliminating the need for augmentation or gross oversizing. Energy Storage Vessels can be easily mounted in racks, containers or stacked in custom warehousing. Its unique chemistry eliminates the need for preventative fire suppression. It can also reliably operate in a wide ambient temperature range without robust HVAC. Ideal for 2- to 12-hour cycles at 100% depth of discharge, Energy Storage Vessels are exceptionally flexible, opening new opportunities for energy storage applications and revenue stacking. Energy Storage Vessels dramatically reduce OPEX and feature a much lower cost-per cycle compared to lithium-ion chemistries.

Warranty: 3-years standard, extendable to 20 years.

LS Energy

What’s new? LS Energy Solutions is a leading provider of grid-connected energy storage solutions. With over a decade of experience innovating energy storage and related technologies, from the first grid-connected lithium-ion storage system to now having more than 1.5 GW and 2.6 GWh deployed across 300 projects, LS-ES offers a flexible range of power electronics and utility-scale all-in-one energy storage systems. LS-ES’s flagship products include the AiON-ESS containerized AC battery storage, recently announced as the storage option for a 200 MW/400 MWh CA site, as well as the AiON-SIS string inverter. Website

AiON-ESS

This is a Full Energy Storage System For utility-scale applications

Basics: The AiON-ESS all-in-one integrated system is a flexible, modular AC energy storage solution for 1-hour and 2- to 6-hour applications. Both models incorporate LS-ES’s third-generation string inverters, together with Tier-1 batteries in a single, scalable enclosure, enabling configurations of any size for almost any application. The fully integrated, containerized system reduces upfront capital outlay and saves on-site installation work. The all-in-one system is built from paralleled AC string inverters installed inside an air-cooled section of the container, together with an isolated HVAC- or liquid-cooled DC battery compartment. DC battery strings are aggregated in small groups to keep the DC bus voltage at lower levels. The system can operate from 200 VDC up to 1350 VDC, making it compatible with most current and future energy storage technologies.

Power Rating (Energy Series)

  • Nameplate (MVA): 0.84 to 1.4 (2-3 hr), 0.42 to 0.84 (4-6 hr)
  • Rated (MW): 0.8 to 1.3 (2-3 hr), 0.4 to 0.8 (4-6 hr)

Power Rating (Power Series)

  • Nameplate (MVA): 0.98
  • Rated (MW): 0.88

Energy Rating (Energy Series)

  • Nameplate DC (MWh): 2.66 (2-3 hr), 3.04 (4-6 hr)
  • Rated AC Energy (MWh): 2.61 (2-3 hr), 2.98 (4-6 hr)

Energy Rating (Power Series)

  • Rated AC Energy (MWh): 0.94

Battery Chemistry

  • Energy Series: Tier-1 LFP
  • Power Series: Tier-1 NMC

Point of Interconnection (POI)

Energy Series: Voltage (kV): 0.6; Frequency (Hz): 60

Power Series: Voltage (kV): 0.6; Frequency (Hz): 60; Phases: 3-Grounded

NEMA Rating Type 3R

Warranty: 5 years, extendable to 20 years

AiON-SIS

This is a Battery inverter/charger  For C&I and Microgrid applications

Basics: The AiON-SIS is the third generation of string inverters from LS Energy Solutions. With a cost efficient design, compact architecture, and industry-leading power density, the AiON-SIS offers the patented ability to parallel on both AC and DC sides, making it easily configured into any size inverter for almost any application. The AiON-SIS can operate from 620 VDC up to 1500 VDC, making it compatible with most current and future energy storage technologies. Air-cooled, the AiON-SIS can operate in environments up to 55°C/131°F (with derating), making it ideal for a wide range of project sites. Because the AiON-SIS can be configured into the appropriate size based on the same 140kVA building block, it is suitable for front-of-the-meter applications.

  1. Operating Voltage Range: 620V - 1500V
  2. Rated AC Output Voltage (+/- 10%): 400 VAC - 600 VAC
  3. Rated AC Output VA (at +/-45°C, nominal VAC ): 116 kVA and 140 kVA
  4. Grid Frequency: 50 / 60 Hz (±5%)
  5. Standards Compliance: IEEE 1547, UL1741- SA including CA Rule 21 and HECO Rule 14H, CSA (CE - IEC 62109-1 (LVD of IEC), CSA - 22.2, Australia - AS4777.21, UL1741-SB Pending

Warranty: 5 years, extendable to 20 years

More systems to know

Anker

What’s new? Building on its heritage in battery storage and power delivery, charging giant Anker entered the home energy market in 2023 with its new brand: Anker SOLIX.  Anker Solix is innovating in both portable and fixed energy solutions to bring energy independence to people all around the world. Products include modular, solar battery storage systems for the home, solar balcony solutions designed for apartments, and a growing portfolio of portable power stations. Website

SOLIX X1 Home Energy Solution

 

  • Power Rating: 6 kW
  • Peak Output Apparent Power (10S): 9KVA
  • Maximum power current of 200A for whole-home backup
  • Battery Pack: 5~30kWh/LFP
  • Operating Temperature: -4F to 131F
  • iP65/NEMA 4 - outdoor protection.

 This is a Full Energy Storage System For Off-grid and grid-tied residential

Basics: The Anker SOLIX X1 Home Energy Solution has a modular design that fits into any décor with an ultra-slim form factor, complete with geometrical finishing and sleek edges for a classic minimalist aesthetic.  With its flexible modular design, the X1 is customizable with up to six battery packs per system (30kWh) or up to six systems in parallel (180kWh).

The X1’s energy optimizer can independently charge and discharge with no barrel effect. It provides up to two times the power output during off-grid at daytime and switches to off-grid in less than 15 milliseconds. It is EV charger compatible and can function after battery pack failure.

Is the battery integrated with the system or sourced separately? Integrated

Warranty: 10 years 

SOLIX F3800 Portable Power Station

Type of battery chemistry: Lithium Ion

Basics: The Anker SOLIX F3800 is the first power station to feature AC coupling and support home solar power cycling, paired with the Anker SOLIX Home Power Panel to provide a complete home power cycle. With the F3800, homeowners can enjoy a complete home power system that can be easily installed in a few hours by a professional electrician:

  • 6,000W AC power output and 120V/240V dual voltage output, enabling it to simultaneously power washing machines, dryers, and a refrigerator.
  • 240V output to transfer between grid and backup batteries.
  • 3.84kWh internal battery with expandable form factor of up to 26.88kWh via support for six additional batteries.
  • Portable “suitcase design" with a retractable handle and large wheels.
  • Integration with NEMA 14-50 RV port to power RV appliances.
  • Ability to charge electric vehicles without the need for additional grounding accessories at 6000W/240V.

Warranty: 5 years | Website 

Blue Planet Energy

What’s new? Blue Planet Energy’s Blue Ion series continues to deliver safe, reliable and dependable grid-optional energy storage solution on the market for customers who desire flexible and premium energy storage. Blue Planet Energy’s modular batteries and enclosures enable projects to increase capacity over time to suit growing power needs, while the Blue Ion HI and Blue Ion LX inverter-agnostic systems enable seamless integration with pre-installed systems. In 2024, Blue Planet Energy will unveil the BlueWave, a revolutionary new product as the industry’s first all-in-one, fully modular residential energy storage solution. This pre-wired system has already been hailed by CNET for its “ridiculously easy battery installation.” Website

BlueWave

This is a Full Energy Storage System For Grid-tied residential and off-grid residential

  • Non-toxic lithium ferrous phosphate battery chemistry (LiFePO4)
  • Modular and scalable with capabilities of 3-48 kWh in 3kWh increments
  • Warranty: 10 or 15 year performance warranty (100% DoD)
  • Continuous power rating: 1.65 - 13.2 kW
  • <50lb components allow for quick installation in less than two hours

Is the battery integrated with the system or sourced separately? The BlueWave is Blue Planet Energy’s first fully modular, all-in-one system, enabling the system’s batteries, inverters, and communications to reside in one unit — an industry first.

Battery brands with BMS integration: Yes. The BlueWave has a built-in BMS and BMU, unlike the rest of the market where typically a system just has a BMS. This is an unparalleled and ground-breaking level of safety.

Basics:Blue Planet Energy’s BlueWave is a fully modular residential energy storage solution that can be installed by one person. Using lithium ferrous phosphate (LiFePO4) chemistry, the BlueWave’s multiple patented technologies practically eliminate wiring, busbars and cables. The pre-wired, plug-and-play system results in installations of less than two hours by one technician using minimal tools. Compact, powerful and innovative, the BlueWave boasts both AC and DC coupled options and is seamlessly scalable with capacities ranging from 3-48 kWh in 3 kWh increments, designed to adapt and flourish as energy requirements evolve and expand. Accessible with a single point of service, the BlueWave stays online while individual inverters and battery modules are serviced and replaced.

Warranty: 10 or 15 year performance warranty | Website

Blue Ion HI

This is a Full Energy Storage System For Off-grid residential / grid-tied residential and C&I / microgrids with 48 volt inverters.

  • Non-toxic lithium ferrous phosphate battery chemistry (LiFePO4)
  • 15-year performance warranty (8,000 cycles/100% DoD)
  • 8kW/12kW/16 kWh system size, expandable to 480 kWh.
  • Compatible with any 48-volt battery-based inverter configured in single, split or 3-phase 208V
  • High-power 8kW continuous performance

Is the battery integrated with the system or sourced separately? The system is designed with modules. It comes together but modules are able to be replaced.

Battery brands with BMS integration: Yes. Every one of the Blue Ion modules has a BMS, (and every Blue Ion system has a BMU) unlike the rest of the market where typically a system just has a BMS. This is an unparalleled and ground-breaking level of safety.

Basics:  The Blue Ion HI from Blue Planet Energy is a premium, grid-optional energy storage solution that integrates a wide range of renewable and traditional energy sources to power homes and smaller C&I projects. Compact, powerful and compatible, the Blue Ion HI pairs with any 48-volt battery-based inverter to enable maximum compatibility with both new and existing energy systems. Modular batteries and stackable enclosures enable projects to increase capacity by 8 kWh increments over time to suit growing power needs. Blue Planet Energy supports the Blue Ion HI with a suite of services, including project design and sales support; installation and commissioning support; and O&M and financing services. Designed and built in the USA of premium materials, the Blue Ion HI is made to stand the test of time.

Warranty: 15 year performance warranty | Website

Blue Ion LX

 

This is a: Full Energy Storage System For C&I / microgrids

Is the battery integrated with the system or sourced separately? The system is integrated with battery modules.

Battery brands with BMS integration: Yes. Every one of the Blue Ion modules has a BMS, (and every Blue Ion system has a BMU) unlike the rest of the market where typically a system just has a BMS. This is an unparalleled and ground-breaking level of safety.

Basics: The Blue Ion LX from Blue Planet Energy is a premium, grid-optional, high-voltage energy storage system geared towards C&I applications but also versatile for large-scale residential. The Blue Ion LX is able to integrate with a wide range of renewable and traditional energy sources to power businesses, critical infrastructure and global resilience projects due to its proven track record. When paired with solar PV and recommended site controls, a Blue Ion LX can be configured to run a microgrid which can operate independent of, or in conjunction with, the utility grid. Built in the U.S., the Blue Ion LX solution combines energy storage in a sleek and ruggedized enclosure system. The Blue Ion LX system is inverter agnostic and works with a variety of proven high-voltage inverters currently available on the market.

  •  Non-toxic lithium ferrous phosphate battery chemistry (LiFePO4)
  • 15-year performance warranty (8,000 cycles/100% DoD)
  • 125kW/128kWh system size, expandable in 32kWh increments
  • Cloud, Local Area Network
  • UL9540a listed

Warranty: 15 year performance warranty (8,000 cycles) at 100% Depth of Discharge | Website

Canadian Solar

What’s new? Canadian Solar recently launched its EP Cube Lite residential energy storage solution, a more affordable grid-tied solution. EP Cube Lite makes energy storage accessible to a broader range of homeowners. EP Cube Lite stacks and connects without requiring additional time wiring batteries together, reducing installation time by up to 50%. Plus, homeowners can upgrade to a full EP Cube system, which offers full home backup capabilities later. Website

Canadian Solar EP Cube Lite

Further reading:
What is a good question about solar energy?
Which type of solar panel is best for you?
6 Incredible Benefits of Solar Battery Storage for Your Home
Everything You Need To Know About Solar Batteries
Benefits of Installing an EV Charging Station at Home
Homeowner’s Guide to Going Solar
The 5 Most Common Uses of Solar Energy
  • Scalable from 6.6 to 19.9 kWh
  • Output: 3 kW to 7.6 kW output power (in all operating conditions)
  • AC and DC-coupled PV systems
  • Thin profile, suitable for indoor or outdoor installation
  • Communication: ComLite for automatic energy transfers

This is a grid-tied energy storage solution.

Basics: EP Cube Lite is an affordable grid-tied energy storage solution. It can be scaled from 6.6 kWh to 19.9 kWh, is compatible with most existing PV systems, and features an integrated hybrid inverter and stackable storage modules. The EP Cube Lite allows installers to offer a lower-cost grid-tied solution with scalability from 6.6 kWh to 19.9 kWh and output up to 7.6 kW. The system is easily upgraded later. The EP Cube Lite can be upgraded to a maximum of 19.9 kWh of storage. Also, if home backup is required, you can simply add an EP Cube Smart Gateway.

Is the battery integrated with the system or sourced separately? The battery is integrated with a hybrid inverter supporting AC and DC input. The ComLite is sourced separately.

Warranty: Batteries: 10-year warranty or 6,000 cycles, 80% retention

EP Cube Lite Batteries

  • Capacity: Scalable from 6.6 kWh to 19.9 kWh
  • Compatibility: Most existing PV systems
  • Weight: Approximately 70 lbs. per component
  • Installation Time: About 20 minutes (physical install)

Type of battery chemistry: Lithium Iron Phosphate batteries

For what segments: Resi / C&I / both The EP Cube Lite is designed for residential applications (Resi).

Systems / Inverters with closed loop communication:

Systems / Inverters that communicate with BMS:

 Basics: The EP Cube Lite batteries use Lithium Iron Phosphate chemistry for a safer design. They are also UL9540A certified for indoor and outdoor installations. Plus, batteries stack, snap and connect for fast installation without additional battery wiring.

The EP Cube Lite system is easy to install. The modular components each weigh about 70 pounds and be installed quickly with a 2-man crew. The compact, lightweight modules fit easily into a car and do not require a jack to move. Additionally, the battery modules stack and connect without the need for additional wiring, saving on install time. With each capacity 3.3 kWh, installers can customize their design to fit each customer’s needs – not oversized or undersized.

Warranty: 10-year warranty or 6,000 cycles, 80% retention

Crown

What’s new? Battery waste hurts the environment and your bottom line – from pollution to inefficient manufacturing and end-of-life landfilling fees. On Nov. 15, 2023, Crown is published the Zero Battery Waste Guide. The guide will discuss why are some batteries 99% recycled – but others are 95% landfilled; strategies that reduce carbon emissions, virgin mining, and upstream waste; if battery repurposing viable yet; steps that strengthen supply chains and battery selection tips that lower your costs and environmental impact. Website

CROWN1

  • More recycled than an aluminum can (99% recycled)
  • 100% renewable electricity for manufacturing
  • Fully U.S.-Engineered and Manufactured (ISO 9001:2015)
  • 250+ quality checks per battery
  • Flexible: 2. 6-, 8-, and 12-volt models feature 33-390 Ah (20-hour rating) capacities and virtually unlimited configuration options

Type of battery chemistry: Recyclable Absorbent Glass Mat (AGM)

For both residential and C&I

Systems / Inverters with closed loop communication: TK (Available with or without onboard BMS)

Basics: CROWN1 batteries use 100% renewable energy for manufacturing and are 99.3% recyclable. Crown is the first energy storage company accepted into the EPA’s Green Power Partnership. And CROWN1 batteries use ~80% previously recycled materials. Crown batteries are engineered and manufactured in the U.S., proven in 20,000+ installations on six continents. Turnkey installation and lifespan-extending features include modular design. Robotic welding offers 3,960 more adjustments than conventional methods. The industry’s thickest plates hold more energy-storing material, for more chemical reactions. US-based sales and tech support helps avoid costly on-site drives and inspection delays. It also protects your supply chain with 100% domestic critical materials and simple, robust shipping from 14 sales and distribution offices in North America and distributors in 60+ countries.

Warranty: Varies.

 

Discover Energy Systems

Discover Energy Systems (DES), based in Richmond, BC, Canada, announced its official launch as a new entity separate from Discover Battery. Discover Energy Systems will offer lithium batteries for solar, motive, and mobile auxiliary power applications. The company will focus on developing batteries featuring High Current Battery Management Systems, proprietary operating firmware and management software, as well as closed-loop integration with power conversion systems. Discover Energy Systems is committed to leveraging its technical expertise and quality-focused and customer-centric approach to deliver reliable and sustainable energy storage solutions. Website

AES RACKMOUNT 30 kWh Slimline Enclosure

  • Outdoor NEMA 3R / IP 54
  • 500 A DC Bus Bar
  • UL 9540 (pending)
  • Closed-Loop Communication
  • Parallel up to 180 kWh (51.2V)

 This is a Full (Battery) Energy Storage System For Off-Grid / Whole-home backup / Utility Surcharge Avoidance

Is the battery integrated with the system or sourced separately? Sourced separately.

Battery brands with BMS integration: AES RACKMOUNT (5.1 kWh, 100 Ah, 51.V)

Basics:  Indoors or outdoors, the AES RACKMOUNT 30 kWh Slimline Enclosure is economical, installs fast and offers the smallest footprint for 30k kWh of low-voltage energy storage. Parallel up to six AES RACKMOUNT Slimline Enclosures for 180 kWh in a closed-loop configuration with low-voltage hybrid inverters. The Slimline Enclosure comes pre-assembled with a DC bus bar and battery cables with Amphenol connectors and hosts up to six AES RACKMOUNT Battery Modules. Add a LYNK II Gateway for closed-loop integration with inverter-chargers (Sol-Ark, Schneider Electric, Victron, SMA, Deye, Studer, Morningstar).

AES RACKMOUNT 48-48-5120 / 48-48-5120-H

  • 12 kWh / 100 Ah 51.2V
  • 19 Inch Rack Mount 3U
  • 2C Peak Power
  • 1C Charge/Discharge (1Hr)
  • UL 1973, UL 9540a, UL9540 (pending), UN 38.3 DOT, IEC 62619

 

Type of battery chemistry: LiFePO4

For what segments: Off-Grid / Whole-home backup / Utility Surcharge Avoidance

Systems / Inverters with closed loop communication: Sol-Ark, Schneider Electric, Victron, SMA, Deye, Studer, Morningstar.

Systems / Inverters that communicate with BMS: Sol-Ark, Schneider Electric, Victron, SMA, DEYE, Studer, Morningstar, others.

Basics: AES RACKMOUNT ESS Battery Modules install rapidly and are easy to configure for Off-Grid Solar, Whole-Home Backup Power and Microgrid projects. UL1973 certification, UL9540a and pending UL9540 DC ESS certification enable permitting throughout North America. In minutes, quickly stack mount up to six AES RACKMOUNT Battery Modules with the AES RACKMOUNT Quick Stack Rack and parallel up to six Battery modules with a single prewired AES RACKMOUNT Battery Combiner. Install AES RACKMOUNT Battery Modules outdoors with the AES RACKMOUNT 30 kWh Outdoor Enclosure.

Networking AES RACKMOUNT with the LYNK II Gateway enables plug-and-play closed-loop communication with low-voltage hybrid inverters and dramatically elevates charging performance. Parallel with closed-loop communications up to 180 kWh. Parallel an unlimited amount of kWh in an open-loop configuration.

Warranty: 10 years or 30 MWh Total Energy Throughput

Electriq

Electriq Power is the supplier of the PowerPod 2, a residential intelligent battery storage system. It can be paired with existing or new solar panel installations, and helps homeowners reduce energy bills, be prepared for power outages and lower greenhouse gas emissions. In addition to installer direct sales, Electriq also partners with municipalities, community organizations and utilities through its Sustainable Community Networks (SCNs) program. Through SCN, eligible homeowners can install a solar + battery storage system at zero-up-front costs, regardless of the customer’s economic status. The PowerPod 2 is now compatible with California’s new Demand Side Grid Support (DSGS) program. Website

PowerPod 2

  • 10, 15, 20 kWh capacities
  • 7.6 kW continuous output to home and grid
  • UL 9540 certified / UL9540A approved
  • OpenADR 2.0b-certified
  • Temp range from -4°F to 131°F.

This is a Full Energy Storage System For grid-tied residential

Basics: The PowerPod 2 is a rechargeable residential battery and energy management system that stores energy from solar panels or the electrical grid. With an inverter, the PowerPod 2 can be retrofitted into an existing solar system, be part of a brand new installation, or operate as a stand-alone system. The PowerPod 2’s energy management system, the PowerHub, enables customers to manage their home energy system from an app. The PowerPod 2 supports existing and future grid services markets, demand response, and resource adequacy. The system is rated for indoor and outdoor installation.

Is the battery integrated with the system or sourced separately? Integrated with the system

Warranty: 10 years

Elexity

What’s new? Elexity recently launched its turnkey energy-storage-plus-building-load-control product for commercial buildings. This is the only offering on the market that pairs commercial-scale energy storage with control and optimization of HVAC systems. We leverage the thermal battery characteristics of buildings and use software to shift HVAC load, eliminating up to 40% of peak demand charges. Pairing this powerful software with energy storage capacity enables the batteries to efficiently load-follow EV charging, reduce TOU energy charges, and be ready to provide instantaneous backup power. 

Elexity

This is a Whole Building EMS for C&I / Microgrid applications

Is the battery integrated with the system or sourced separately?  Integrated

Battery brands with BMS integration: CATL

Basics: Elexity’s solution includes a turnkey battery energy storage system and a whole-building Energy Management System (EMS). The platform controls and optimizes HVAC in conjunction with the battery, enabling peak demand savings, TOU arbitrage and backup power. Our platform saves up to 2X more than existing energy storage offerings and often results in a lower-capacity system being needed to meet customer needs – which further saves money.

  • Up to 2x greater peak demand and TOU savings than traditional systems
  • Active HVAC load control
  • UL9540-listed plug-and-play battery energy storage
  • Microgrid-capable

Warranty:  Standard 5 years; up to 10 years available. Savings performance guarantee.

Website: Elexity.io

FranklinWH

What’s new? Franklin Home Power is a whole-home energy management system integrating solar, battery, grid and generator power sources and managing them to optimize the safety, reliability and efficiency of home energy. The aGate smart energy management system, 13.6 kWh aPower batteries and the FranklinWH App combine to provide unparalleled control over home energy usage. In 2023, FranklinWH announced the addition of the aHub, a first-of-its-kind adapter that enables the connection of electric vehicles that boast vehicle-to-load capabilities and 120V/240V portable generators to FranklinWH’s home energy management system. Website

Franklin Home Power

  • Usable energy expandable from 13.6kWh to 204kWh, up to 15 aPower’s on a single aGate
  • Nominal AC voltage of 120 V / 240 V, 60 Hz
  • Continuous output power ranges from 5kW to 38.4kW
  • Smart Circuits and black-start capabilities
  • Micro-grid interconnect device (MID) functionality

This is a Full Energy Storage System and Load manager for Microgrid controller Off-grid and grid-tied residential

 Basics: The Franklin Home Power is a whole home energy management system that integrates the grid, solar generation, batteries and even generators, into a robust energy control system that is managed to optimize the safety, reliability and efficiency of home energy, all via a mobile app. It combines the aGate smart energy management system, 13.6 kWh aPower batteries and the FranklinWH App. Franklin Home Power provides real-time monitoring and control of day-to-day energy usage, and supplies energy from multiple power sources during grid outages. Smart Circuits in the aGate allow for 2-3 large loads to be controlled remotely via the app.  Franklin Home Power’s backup options include whole-home and partial backup, and the system features seamless mode switching and UPS-grade current quality.

Is the battery integrated with the system or sourced separately? The aPower battery is an integrated component of the Franklin Home Power System.

Warranty: 12 years

aPower

Type of battery chemistry: Lithium Iron Phosphate (LFP)

Systems / Inverters with closed loop communication: Direct closed loop communication with aGate and aPower

  • 13.6 kWh per unit, scalable up to 15 per aGate
  • Nominal AC voltage of 120 V / 240 V, 60 Hz
  • Round Trip Efficiency of 89% (at beginning of life, AC to battery to AC, 50% power rating)
  • Warranted Energy Throughput (12-year) of 43 MWh
  • Maximum Continuous / Peak Discharge Power (10 seconds) of 5 kW / 10 kW

Basics: FranklinWH features a 13.6 kWh AC-coupled aPower battery with energy expendable to 204 kWh, a continuous output power from 5 kW to 38.4 kW, and a peak power output of 10 kW to 80 kW for 10 seconds. FranklinWH’s large battery features 100% depth of discharge (DoD) with an industry warranty that outpaces competitive offerings. aPower uses a physical air-cooling system rather than chemical liquid cooling. aPower is scalable up to 15 batteries per aGate management system, easily integrates with all home energy sources (including solar, grid and generator) and is both on- and off-grid enabled.

Warranty: 12 years

Haven

What’s new? Haven is a climate tech company accelerating the adoption of home battery systems. Haven’s platform enables sales agents to guide homeowners through the selection, quoting, and financing of a home battery system, provides system engineering and permitting, and then pairs homeowners with certified electricians to install their battery. Post-installation, Haven partners with homeowners to optimize their system, securing monthly savings by load-shifting during peak, and allowing homeowners to enroll in their virtual power plant, where they can earn a guaranteed $125/year. Haven’s systems can be paired with previously installed solar panels, installed alongside new solar or installed as standalone batteries, charging directly from the grid. Featured Haven ESS? Franklin WH aPower X and Tesla Powerwall 2.

JinkoSolar

What’s new? JinkoSolar’s EAGLE RS is a fully integrated AC or DC-coupled solution for new solar plus storage residential installations or for adding storage for existing solar installations. An integrated automatic transfer switch and autotransformer enables seamless operation during power outage events, and the use of just one single hybrid inverter for both the solar and the storage energy conversion provides the best value for solar plus storage installations. Website

EAGLE RS

This is a Full Energy Storage System For Off-grid Resi / grid-tied resi

Is the battery integrated with the system or sourced separately? Integrated with System in separate cabinet

 Basics:  The EAGLE RS has a total energy capacity of 19.2 kWh and a power output of 7.6 kW which is enough to power the essential loads of a standard US home during an outage. The EAGLE RS features best-in-class safety Li-ion LFP battery technology, a robust battery management system for safe operation, and a single-wrapped warranty.  The EAGLE RS has a large surge capacity of 12.2kVA for starting current intensive loads.

  • High Power (7.6kW) and Energy Capacity (19.2kWh)
  • Same Day Install & Commissioning
  • Best-In-Class Safety with LFP Batteries
  • Advanced Monitoring App
  • 10 year, 6000 cycle life

Warranty: 10 years | Website

EAGLE DCB 3440

 

This is a Full Energy Storage System For Utility and C&I

Is the battery integrated with the system or sourced separately? Integrated with System

 Basics: JinkoSolar’s EAGLE Storage brings together the best energy storage technology for turnkey hardware and energy storage services, providing the best value for solar plus storage installations. The EAGLE DCB 3440 is a fully integrated, scalable DC-coupled solution with a 2 to 4 hour duration for new solar plus storage utility and C&I installations. The high energy density DC battery block is manufactured by JinkoSolar.

  • 500-800VAC PCS output
  • Jinko provided L4 BMS/local controller
  • 89% RTE or better
  • Pre-vetted, Top Tier Equipment Partners
  • 20-year design life

Warranty: 5 years, 20-year extended warranty | Website 

EAGLE DCB Battery

Type of battery chemistry: Lithium Iron Phosphate

For what segments: Utility and C&I

Systems / Inverters with closed loop communication: MODBUS
Systems / Inverters that communicate with BMS:
Unit Controller

 Basics: With 1.5GWh contracted, The EAGLE DCB-3440 includes a complete state of the art fire suppression system and a local controller to interface with PCS and EMS provider. JinkoSolar provides commissioning service and a full documentation is available for design, commissioning, and O+M.

  • 44MWh rated
  • 280Ah cells
  • 1228VDC nominal
  • UL 9540A certified
  • 20 year design life

Warranty: 5 year, 20-year extended warranty | Website

LG

What’s new? LG Energy Solution launched a new residential energy storage system in the U.S. in November. The LG Energy Solution enblock S is a stackable modular residential ESS that provides tailored flexibility to meet users’ energy capacity requirements, is easy to install, and incorporates enhanced safety features. Later this year, LG Energy Solution will introduce enblock S+, enabling customers to acquire the enblock S battery in conjunction with LG Energy Solution’s new AC-coupled inverter as a bundled solution. Offered in two distinct configurations – backup and arbitrage – this retrofit option ensures easy installation and compatibility with any existing PV systems.

LG Energy Solution enblock S

Customers will have options to stack three, four or five battery module assemblies (BMAs) along with a specialized battery control unit (BCU). LG Energy Solution enblock S 10 has three BMAs and an energy capacity of 10.6 kWh; the LG Energy Solution enblock S 14 has four BMAs and 14.1 kWh; and the LG Energy Solution enblock S 17 has five BMAs and 17.7 kWh. The LG Energy Solution enblock S supports the parallel connection of two matching units for a maximum output of 14 kW. The LG Energy Solution enblock S also passed UL9540A testing.

Lumin

What’s new?  Lumin offers a universally compatible, retrofit-ready load management platform that works with all batteries and load centers without changing your current system. By making ordinary circuits smart, Lumin grants comprehensive control over the home microgrid, enabling whole-home backup, electrification, and participation in demand response programs. Through the Lumin app, homeowners can monitor their energy use, create on-grid and off-grid circuit management schedules, and automate time-of-use rate avoidance, providing maximum energy control. Coming Soon, the Lumin Smart Panel will have Franklin WH SoC Integration. Website

Lumin Smart Panel

  • 12 circuits of control
  • 1.5-4-hour installation time
  • Flush or surface mounted
  • 17 in x 17 in x 4 in; 27 lbs.
  • 3000m/9000ft operating range

This is a Load manager / smart panel for Off-grid and grid-tied residential

Basics: Lumin enables longer-lasting whole-home backup and energy-saving load control. The hardware-agnostic platform works with existing hardware, and the turnkey installation process can be completed in a couple of hours. Lumin delivers the intelligent energy management and optimized performance customers expect and deserve from their solar and storage setup. As one of our Lumin Certified Installers put it, “Lumin makes batteries operate the way homeowners think they should.”

Lumin is compatible with all load centers and battery storage systems. Through our partnerships with Enphase and SolarEdge, we read the state of charge and automatically make backup-extending load control decisions. Lumin provides the most effective load management for homeowners and a streamlined process for installers. We work closely with installers to ensure smooth sales and straightforward installation.

Is the battery integrated with the system or sourced separately? Sourced separately

Battery brands with BMS integration:

  • SolarEdge (SoC Integration)
  • Enphase (SoC Integration)
  • Coming Soon: Franklin WH (SoC Integration)

Warranty: 10-year warranty

Nature’s Generator

What’s new? Nature’s Generator Powerhouse can single-handedly address all your home power requirements because of its split-phase 240V/7200W or single-phase 120V/7200W (combined) pure sine wave inverter. Website

Nature’s Generator Powerhouse

  • 120VAC and 240VAC split phase
  • 7200W Pure Sine Wave Inverter
  • 4800Wh Batteries Included
  • 2000W Solar, 1300W AC Charging Input and 1000W Wind Charging Capability
  • 5V USB, 12V DC, and 48V DC Output

This is a Battery inverter/charger  for Off-grid Resi and grid-tied residential.

Is the battery integrated with the system or sourced separately? Integrated

Basics: Nature’s Generator has made installation a breeze.  You can connect one of our transfer switches to the home breaker box and simply connect the Powerhouse to have a whole home battery back-up.

Nature’s Generator has a whole home battery back-up system as well:

  • 12v, 100Ah battery
  • Design life of 10 years
  • Rated capacity 100Ah for 10 hours (10.0A to 10.5V)
  • Max discharge current 1200A (5S)
  • Self-discharge 3% a month at 25C

Warranty: 1 year 

Redflow

What’s new? Redflow is a designer and manufacturer of long-duration zinc-bromine flow batteries for stationary commercial, industrial, and utility applications. Redflow has over 270 active deployments and has delivered over 3 GWh of energy via its flagship energy storage systems, which are modular, scalable, fire-safe, and capable of 100% depth of discharge. The selling points of its system include a hibernation feature, secure remote management, a simple recycling path, and sustained energy delivery. Redflow has partnered with organizations like the U.S. Department of Energy and is one of the few non-lithium energy storage providers to have received SGIP approval. Website

Energy Pod200

  • Battery Chemistry: Zinc-bromine hybrid flow battery (ZBM3)
  • Rated Discharge Power: Up to 60 kW (cont.) or 100 kW (peak) @ 48 Vdc or 30 - 60 kW (cont.) or 100 kW (peak) @ 850 Vdc or AC (Nominally 2.5 kW per ZBM3)
  • Maximum Charge Rate: 50 kW (2.5 kW per ZBM3)
  • Voltage Range: As required for the application
  • Standards: Certification to UL 1973 and UL 9540 in progress. UL 9540A completed.

This is a Full Energy Storage System For C&I and Microgrid applications

Basics: The Energy Pod is Redflow’s scalable energy storage solution and the core building block for the company’s larger systems. The Energy Pod is designed to hold 20 of Redflow’s 10 kWh ZBM3 flow batteries encased in a custom enclosure. The enclosure provides electrical protection and power conditioning, enabling it to deliver energy safely and reliably across various applications. The Energy Pod can be also grouped into banks to create microgrid or MWh size storage solutions, allowing them to be flexible to fit a variety of applications, from commercial and industrial, utility, telecommunications, to remote/off grid or grid services.

Warranty: 10 year

Renogy

What’s new? The Renogy X energy storage system is built out of the company’s larger philosophy, to make solar energy more accessible to people. From a technology standpoint, that translates into innovation and adaptability. The company launched with the Renogy X Battery, a modular system that allows homeowners to pinpoint their backup capacity between 10kWh up to 60kWh. Its accessibility is furthered by the economics, in which we enter as one of the most affordable battery systems on the market. The Renogy X storage suite is also growing fast. In May, they plan to debut the PowerTower, an all-in-one inverter and battery solution. Website

PowerTower

This is a Hybrid solar + storage PV inverter For Off-grid / grid-tied residential

Is the battery integrated with the system or sourced separately? Integrated

Battery brands with BMS integration: Renogy X has designed and integrated its own battery modules into the X PowerTower™ system, complete with Battery Management System (BMS) integration.

Basics: Installers should know that the Renogy X PowerTower™ offers a hassle-free, factory-designed solution for solar generation and battery backup. Its snap-and-lock system streamlines the installation process, reducing time and costs significantly. The product is suitable for off-grid and grid-tied residential applications, offering seamless integration and impressive scalability.

  • Total Battery Capacity: Up to 25 kWh in a single stack (batteries)
  • Continuous Power Output: 22.8 kW (Inverter)
  • Integration: Factory-designed and pre-packaged system
  • Installation Time Savings: Up to 35%
  • Cost Savings (Equipment and Labor): Approximately $2,300 for an average system.

Warranty: 10 Year Warranty

Website: www.renogyx.com

Low Voltage Inverter and ESS

This is a hybrid solar + storage PV inverter For Off-grid and grid-tied residential

Is the battery integrated with the system or sourced separately? Separate

Basics: Professional solar installers should focus on the Renogy X LV inverter and Renogy X 48V ESS for efficient solar integration and energy storage. The Renogy X 48V ESS is expandable from 5 kWh to 20 kWh, allowing for up to 60 kWh capacity when clustered. Lightweight components simplify installation, each weighing under 100 lbs, ensuring ease of use. The system operates at 48 V and is backed by essential certifications such as UL1973 and UL9540. Solar integration is achieved by adding the Renogy X LV inverter, available in 5 kW, 7.6 kW, and 8 kW sizes. The inverter's LCD screen and web portal provide real-time data and multiple mode selection options. Together, these products offer a streamlined, reliable solution for solar and energy storage installations.

The Renogy X microgrid interconnected device (MID) is the brain of the home energy system: it provides a simple pre-wired solution to connect to the grid, providing seamless back up protection and smart energy management by optimizing critical loads, energy storage, and solar power. This device also allows homeowners to get rewarded for stabilizing the grid by enrolling unused capacity to the available VPP programs.

  • Rated Capacity (Ah): 100Ah up to 400Ah (5kwh to 20kwh stack)
  • Max. Discharge Current (A): 100A up to 200A (5kwh to 20kwh stack)
  •  Nominal Voltage: 51.2V
  •  Cycle Life: > 6000 Cycles
  •  Rated Output (kW): 5kW up to 10kW (5kwh to 20kwh stack)

Warranty: 10 Years

Renogy X battery

Type of battery chemistry: LFP

Basics:  The Renogy X all-in-one battery storage and inverter offers scalable power options ranging from 10 kWh to 25 kWh, catering to varying energy needs. The battery features a nominal energy range from 10.24 kWh to 25.6 kWh and output ranging from 9.83 W to 24.58 W. It operates with a roundtrip efficiency of over 95%. The LFP chemistry is known for its long cycle life of 8000 cycles. With a wide operating voltage range, this product provides flexibility and reliability for solar/storage solutions.

  1. Cycle Life:  >8000 Cycles
  2. Battery Capacity: 10.24kWh up to 25.6kWh (10kWh to 25kWh battery stack)
  3. Rated Output: 9.83kW up to 24.58kW (10kWh to 25kWh battery stack)
  4. Nominal Voltage: 204.8V up to 512V (10kWh to 25kWh battery stack)
  5. Certifications: UL1973, UL9540, UL9540A

Warranty: 10 Year

Schneider Electric

What’s new? Schneider Home includes a battery, high-power solar inverter, smart electrical panel, EV charger, and connected plugs and switches. The system controlled by a single intuitive app. Designed to install faster and easier with less boxes on the wall, it reduces installation time, equipment costs, and labor costs. It also easily integrates all energy systems including solar, battery, and EV charging. Website

Schneider Inverter

This is a Hybrid solar + storage PV inverter For grid-tied residential

  • 7.7 kW continuous power
  • 15.4 kW surge capability for more reliable backup power
  • DC-coupled solar and battery inputs allow higher efficiency battery charging from solar
  • 4 integrated MPPT channels for power optimization with a 50-600 V input range
  • 98% Peak and 97% CEC efficiency

Basics: The Schneider Inverter is used to connect the Boost battery and solar panels to the home and grid. The Inverter has DC ports for Boost and solar, with 3 battery inputs and 4 MPPT inputs for solar.  The DC-coupling of solar and batteries allows for higher system efficiency when charging batteries from solar.  When the inverter is installed with Boost and a Schneider Backup Controller, the system automatically powers the home during a grid outage.  Homeowners can monitor, control, and automate their entire home energy with the Schneider Home app. The commissioning app will save installers time, and the installer portal web app will provide ongoing system monitoring and troubleshooting remotely.  With the Schneider Inverter, systems can be configured with solar and batteries, solar-only, or batteries-only.

Is the battery integrated with the system or sourced separately? Schneider Boost battery is optional

Battery brands with BMS integration: Schneider Boost

Warranty: 10 years

Schneider Pulse

This is a Load manager / smart panel For grid-tied residential

Basics: Pulse simplifies adding a battery as part of a solar system because it does not require a backup panel. Pulse also combines up to five enclosures in one: Backup controller, backup panel, non-backup panel, utility meter, Load control panel). This reduces installation time, equipment costs and labor costs. Load management ready, Pulse helps minimize the need for service upgrades. It is available with embedded or field-installable backup control, for seamless transition in an outage. The Pulse CSED is eligible for the IRA rebate. Schneider Backup Controller can be integrated within the panel, eliminating one enclosure for the Microgrid Interconnect Device (MID) and unlocking the full value of the Schneider Home.

Is the battery integrated with the system or sourced separately?  Functionality is integrated but Boost battery can be purchase separately with Inverter. Pulse is also sold separately.

Battery brands with BMS integration: Schneider Boost

Warranty: 10 years | Website

Schneider Boost

Type of battery chemistry: LFP

  • 10 kWh capacity home battery with LFP chemistry
  • Expandable to 30 kWh per system (3 Boost batteries)
  • Slim design (26” W x 5” D) with front-to-back stacking capability
  • Higher system efficiency with Schneider Inverter’s DC-coupled solar input
  • 7.7 kW backup power with a Schneider Pulse CSED

Basics: Schneider Boost is a 10 kWh capacity home battery. Boost can be connected to the home, solar, and the grid with the Schneider Inverter (purchased separately). Boost is expandable to 30 kWh per system, yet its slim design with the front-to-back stacking capability makes efficient use of limited wall space. It provides 7.7 kW backup power when installed with the Pulse CSED with integrated Backup Controller or the Pulse Backup Controller. Homeowners can monitor, control, and automate their entire home energy with the Schneider Home app. For installers, our easy-to-use commissioning app will save them time, and the installer portal web app will provide ongoing system monitoring and troubleshooting remotely.

 Systems / Inverters with closed loop communication: Schneider Inverter
Systems / Inverters that communicate with BMS:
Schneider Inverter

Warranty: 10 years | Website

Sol-Ark

What’s new?  Sol-Ark is expanding its high voltage battery portfolio to include the new L3 Series LimitLess Lithium Battery Energy Storage System with Native 208V and 480V options. Modular outdoor and indoor solutions offer scalable energy storage from 40KWh to 11.5 MWh. The L3 Series is an efficient, flexible, and cost-effective solution to battery energy storage. Solutions include integrated controls, grid transfer, AC and/or DC coupling. Outdoor battery energy storage systems are pre-assembled, self-contained, forklift-able systems. Website

30K-3P-208V

 

This is a Hybrid solar + storage PV inverter For C&I applications

  • Grid Relay/Pass-through: 200A per inverter
  • Backup Capability: 30KW per inverter
  • Minimum Battery Size: 60 kwh outdoor / 40 kwh indoor
  • Maximum Solar Size: 39kWdc coupled or 54kWac coupled
  • Stackability: Up to 12 inverters

Basics: The Sol-Ark 30K-3P-208V is a three-phase 208V Wye configuration hybrid inverter that is designed to meet the needs of both large and small commercial solar energy systems. It combines a 30K backup inverter with a variety of features, including a 200A grid interconnection, pass-through and relay control; 200A multipurpose port for large AC-coupled solar, EV charging, or generator controls; Four dual-port MPPTs for managing eight solar input circuits; Simple control capable of managing multi-seasonal time-of-use and demand management levels; and grid exports and DERMs controls for external battery demand response programs.

Like its 60K-480V counterpart, the inverter can AC-couple very large solar arrays, roughly twice as large as its nameplate capacity, making it ideal for incorporating existing large solar arrays with a small amount of batteries. Systems can be paralleled to increase backup power capability, and Sol-Ark's upcoming SL-14 load controller will support 208V three-phase applications.

Is the battery integrated with the system or sourced separately? Separately

Battery brands with BMS integration: Sol-Ark, Deka, Endure, Pylontech, BluePlanet

 Warranty: 10 year plus 5 Year Extended Option

 

Sol-Ark 60K-3P-480V

 

This is a Hybrid solar + storage PV inverter For C&I applications

  • Grid Relay/Pass-through: 200A per inverter
  • Backup Capability: 60KW per inverter
  • Minimum Battery Size: 60 kwh
  • Maximum Solar Size: 78kWdc coupled or 125kWac coupled
  • Stackability: Up to 12 inverters

 Basics: The Sol-Ark 60K hybrid inverter is a versatile 480V three-phase solution capable of AC-coupling up to 1.5 MW of solar to over 11.5 MWh of batteries when used in its maximum 12 inverter configuration. The 200A grid relay and pass-through also scales, such that it can be used to add up to 720kW of backup to almost any commercial load center. Capable of AC or DC-coupling, it offers a simple solution for adding EV carports to buildings, retrofitting batteries to existing solar, or even stand-alone battery applications for time-of-use metering or demand management. The inverter can be paired with Sol-Ark’s high voltage LimitLess Lithium indoor or outdoor battery series as well as a variety of high voltage battery partner options.

Is the battery integrated with the system or sourced separately? Both options

Battery brands with BMS integration: Sol-Ark, Deka, Endure, Pylontech, BluePlanet

Warranty: 10 years plus 5 year extension | Website

L3 Series LimitLess Lithium Battery ESS

This is a Full Energy Storage System For C&I applications

  • Battery Cabinet Size: 40 kWh-60 kWh
  • Max Battery Size: 7.7 MWh (208V), 11.5MWh (480V)
  • Environmental Rating: Indoor and Outdoor options
  • Fire Extinguishment: Aerosol-based
  • Chemistry: Lithium Iron Phosphate (Prismatic Cells)

Basics: Sol-Ark's L3 LimitLess Lithium battery series is a complete energy storage solution that is designed to work with Sol-Ark 30K and 60K inverters. Available in both indoor and outdoor options, it includes integrated aerosol-based fire suppression. The L3 LimitLess Lithium battery series has inverter-integrated, high amperage grid relay and controls; and multi-purpose relay suitable for oversized AC-coupled solar, EV chargers, or generators. Separate inverter models provide native 208V and 480V three phase service, along with multi-seasonal time-of-use, demand management, and grid export control.

Outdoor L3 LimitLess Lithium battery cabinets can be stacked up to 6 high, each with 6 inverters, for a total storage capacity of up to 2.2 MWh. Indoor cabinets can be stacked up to 12 high, each with 16 inverters, for a total storage capacity of up to 11.5 MWh. By selecting 12 paralleled Sol-Ark 60K 480Vac inverters, installers can AC-couple up to a 1.5 MWac solar array, which is ideal for batteries in existing commercial solar sites with no adjustment required for existing rooftop strategy.

Is the battery integrated with the system or sourced separately? Integrated

Warranty: 10 years | Website 

SolarEdge

What’s new? Rate Saver: Tailored for Time of Use Markets like California under NEM 3.0, Rate Saver can slash hardware costs by up to 38% by directly connecting the battery to the inverter—eliminating the need for a backup system. With the PCS (Power Control System), installers can now amplify power, including batteries, on a single breaker without the costly requirement of a main panel upgrade. Load Controllers automatically extend backup time and offer homeowners greater energy control by intelligently shedding large loads. Website 

SolarEdge Home Hub Inverter

This is a Hybrid solar + storage PV inverter and Battery inverter/charger For off Grid / Grid-tied residential

Basics: The SolarEdge Home Hub Inverter is a PV + Battery inverter based on SolarEdge’s HD Wave technology, providing record-breaking 99% weighted efficiency with up to 200% DC oversizing. The Home Hub is designed to operate with SolarEdge’s power optimizers, providing module-level shutdown to NEC requirements and mitigation against production loss due to shade and other sources of module mismatch. When used with multiple batteries, the Home Hub provides enhanced battery power up to 10kW per inverter. Each Home Hub includes built-in revenue grade production monitoring, as well as cellular connectivity to SolarEdge’s monitoring platform. The Home Hub has a modular design and has optional upgrades to dc-coupled storage (for full or partial home backup), built-in consumption monitoring, and connection to the SolarEdge Home EV charger.

  • 3.8 to 11.4kW models for both PV + Battery power
  • 99.0% CEC efficiency
  • Stackable up to 3 batteries per inverter and 3 inverters per backup system
  • Up to 200% PV DC/AC oversizing
  • Advanced safety features like SafeDC and Sense Connect

Is the battery integrated with the system or sourced separately? Sourced Separately

Battery brands with BMS integration: SolarEdge Home Battery or LGES RESU16H Prime or LGES RESU10H Prime

Warranty: 12 years, extendable to 20 or 25 years

SolarEdge Home Battery

Type of battery chemistry: Lithium-Ion Battery (NMC)

Systems / Inverters with closed loop communication: BMS is internal to the battery (closed loop)

Basics: The SolarEdge Home Battery offers industry leading 94.5% round trip efficiency, yielding up to 10 days of free, additional power annually with DC-Coupled technology. It allows three batteries to be stacked on a single inverter, eliminating the need for main panel upgrades. The system features wireless communication, flexible indoor/outdoor installation, and UL9540A compliance, reducing spacing requirements. During outages, it provides 9.7kWh storage per battery, supporting power-intensive appliances.

The battery addresses installers and homeowners’ safety concerns with UL9540A certification and helps homeowners to prepare for weather events with Weather Guard, which automatically charges the battery when severe weather is detected. SolarEdge Home Rate Saver configuration offers a battery-only solution that is ideal for time-of-use markets such as NEM 3.0 in California.

 

  • There are no limitations on the lifetime cycling of the SolarEdge Home Battery 400V.
  • Discharging amp hours - “At 400Vdc, the battery provides up to 24.25 Ah, providing nearly 2 hours of power at full discharge rate”
  • Decreased spacing requirements with UL9540A compliance
  • Faster commissioning and less wiring hassle with wireless inverter-battery communication
  • 5kW continuous power, 7.5kW peak

Warranty: 10 years

Tigo

What’s new?  The Tigo Energy GO product line delivers flexibility and efficiency for residential solar + storage installations. The complete solution includes module-level optimizers to increase output and design flexibility, storage-ready inverters, modular and compact batteries, and an automatic transfer switch with generator input to enable whole or select load backup. It also provides battery configurations up to 30 kWh, 10-second optimizer installation, rapid commissioning. Website

Tigo GO Line

This is a Full Energy Storage System For grid-tied residential

Is the battery integrated with the system or sourced separately? Integrated LFP battery

Basics: With only three devices required for installation and compatibility with many two-wire start generator models, installers need only deploy a Tigo inverter, a GO Battery, the GO ATS, and a generator, and only run a single conduit between the generator and the GO ATS device.

When combined with a Tigo inverter and solar using Tigo TS4 MLPE devices, the Tigo GO ATS and GO Battery comprise a comprehensive energy system. Tigo provides advanced system control through the web-based Tigo Energy Intelligence Solution and Tigo EI smartphone app. For installers, Tigo delivers intuitive and flexible installation and modular components designed to optimize space efficiency, fast commissioning time, and powerful fleet operations and maintenance tools.

  • GO Inverter (3.8, 7.6 kW, and 11.4 kW): 50V starting voltage, up to 200% DC oversizing
  • GO Battery: 5 kWh per enclosure, up to 30 kWh with 6 modules per inverter, 2.5 kW continuous power with 3.5 kW peak power
  • GO Automatic Transfer Switch (ATS): Available in 50A and 200A models, supports generators up to 24kW with two-wire start circuits (200A-G), Output 120Vac and 240Vac split phase

Warranty:

  • GO Inverter: 152 months
  • GO Battery: 132 months or 6,000 cycles
  • GO ATS: 132 months

GO ATS

Basics: The GO ATS is the central hub for managing power loads and sources, including solar, a battery system, or a generator. The GO ATS can isolate a building’s electrical system during a grid outage and enables home energy system integration with generators up to 24 kW capacity for additional backup power options for residential energy systems. A two-wire start connection simplifies generator integration and provides control from the Tigo EI App, including automated startup and manual override. The GO ATS enables dynamic, customizable interaction between energy sources and loads. Compatible with all Tigo MLPE products, the GO ATS requires no sizing match between generator and MLPE capacity and is compatible with third-generation 3.8kW, 7.6kW or 11.4kW Tigo inverters.

  • Available in 50A and 200A models
  • Supports generators up to 24kW with two-wire start circuits (200A-G)
  • Output 120Vac and 240Vac split phase
  • Built-in transformer
  • IP65 - Outdoor and indoor rated

Warranty: 132 months or 6,000 cycles

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Solar panels are a great way to capture free, clean energy from the sun for yourself or to feed it into the grid for more savings on your utility bill, but it's attaching a battery bank that gives you real energy independence. 

Without solar batteries, even a house covered in photovoltaic panels will leave homeowners literally powerless when the grid goes down.

"Something that people don't consider is that if they're on natural gas and the power goes out in the winter they think their heater is going to work, but most have an electric fan, so if the power goes out you still need something," said Mike Murphy, owner of Utah-based PrepSOS, which sells solar batteries, generators and other emergency preparedness equipment.

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Batteries are the key component that ensures your home can always stay lit and warm and that vital pieces of electronics such as medical equipment continue functioning. Depending where you live, they might be able to save you some extra money by returning energy to the grid at times when it's more valuable. 

However, all of these benefits come at a cost, and wading through specifications to find the right match for your needs can be a bewildering task. Here's a concise primer on what you need to know before you go shopping for independence in a box. 

How solar batteries work

The simplest way to think of batteries is to imagine that the electricity in your house flows through wires in much the same way as water through plumbing. Batteries fill the role of a storage tank, making electricity readily available when it's needed, just as indoor pressure tanks and water heaters do with water. When batteries are tapped for energy, their reserve of stored electricity is depleted, but in a properly wired system they can be automatically replenished by "catching" any excess electricity flowing through the system from sources like solar panels or the grid. 

Depending on your goals for installing batteries, your system might look a bit different.

  1. Connect just to solar panels: Batteries connected only to solar panels will fill when the sun shines and discharge when you use electricity and the sun is down or behind clouds. It's one option if you are off-grid and away from electrical utilities.
  2. Connect to solar panels and to the grid: If you have a solar inverter that can temporarily disconnect you from the grid, you have what's known as a hybrid solar system. In such a system, you can charge your battery with your solar panels or the grid and use the energy stored there in your home or send it back to the grid and save some money via rate arbitrage (if you have time of use rates). A hybrid system can also keep your house powered during a power outage.
  3. Connect just to the grid: While we wouldn't call them solar batteries, you can install batteries without solar panels at all. They would charge from the grid and would be useful for back up power or for enrolling in a virtual power plant.

Pros and cons of solar batteries

The pros and cons of buying a battery largely boil down to savings (and backup power) versus cost.

The extra solar electricity you store in your solar batteries can be used in place of electricity you'd normally have to buy from your utility or sold back to the grid when it's most valuable. This can save you some money and relieve some pressure on the grid when there's peak demand. (Whether this is a viable money-saving option for you depends on your utility's net metering rules.)

Some companies are starting to allow people to enroll their batteries in virtual power plants, a fleet of batteries, smart thermostats and other household appliances that work together to decrease demand on the grid. Where available, virtual power plants might come with additional perks for the battery owner.

In addition, you'll be able to use your battery bank in the event that the grid goes down due to a failure, natural disaster or even a solar flare.  A backup generator can also help keep the power on in an emergency (and charge your batteries), but it requires burning fossil fuels, usually either gas or propane. 

Batteries do add considerable expense to your home energy system, but federal tax credits and other incentive programs usually can be applied to the cost of storage. 

Battery Pros Battery ConsCan reduce energy bills Savings vary depending on local utility and net metering rulesGetting cheaper, and eligible for tax credits and incentives ExpensiveStored power for when the grid goes down Large battery banks require significant storage spaceStoring and releasing energy during peak usage hours can reduce stress on the grid Not all utilities encourage or reward this practiceCleaner source of back-up power than a generator A generator may be more useful in a major emergencyLatest battery chemistries (like Li-PO4) are exceedingly safe and simple to maintain Some batteries pose health and fire risks and require management and maintenanceIncreased energy independence

Different types of solar batteries 

There are several kinds of batteries used in battery backup systems, including lithium-ion and lead-acid batteries. Here's a quick overview.

Lithium-ion batteries

There are multiple lithium chemistries on the market, including nickel-manganese-cobalt, lithium polymer and lithium iron phosphate. The latest lithium technology comes with less danger of fire than older headlines might lead you to believe. They're capable of a deeper discharge than lead acid batteries (you can use up to 90% of a charge per cycle without inflicting much damage) and are much easier to maintain with a longer lifespan. They're also significantly more expensive and sensitive to temperature. Increasingly, though, they are becoming standard in residential solar applications.

Lead-acid batteries 

The basics of this technology are essentially unchanged for over a century. They remain inexpensive and widely available. For solar systems, it's popular to use somewhat more expensive sealed batteries that require less maintenance and eliminate the risk of dealing with a potential acid spill and hydrogen off-gassing. For a while, sealed lead acid seemed to be the future of solar batteries.

However, all lead acid batteries require more careful monitoring of charge levels compared with lithium-ion and can't compete in terms of efficiency, energy and lifespan but are a good and plentiful budget alternative. 

Flow batteries

Flow batteries (or redox flow batteries) are less common in home systems since they're mainly designed for commercial use. However, the technology appears promising, and it could become more widely used in residential battery backup systems in the near future.

Nickel-cadmium batteries

Nickel-cadmium batteries have a high energy density with double the energy of a lead-acid battery. Nickel-cadmium batteries are very durable, expensive and work well in extreme temperatures making them a good choice for large-scale commercial and industrial projects. Cadmium is toxic, however, and generally not appropriate for residential use.

Buying a backup battery system

In general, a solar battery bank can cost between $10,000 to $25,000 for 10 to 25 kilowatt hours of power. (The US Department of Energy says solar batteries can cost anywhere from $12,000 to $22,000.) 

That said, it ultimately comes down to your budget and energy needs. A small off-grid solar system with enough battery capacity for the basics (no air conditioning or electric heaters allowed) using a pair of high-capacity flooded lead acid batteries can be had for $500 total. Upgrading to lithium ion cost $1,300 for a system with comparable capacity. 

Adding batteries is a significant expense for any system, but the good news is that nearly a third will come back to you in the form of the 30% federal renewable energy tax credit. Other incentives may also be available from state and local governments, utilities, and even credit unions. 

How to set up a battery backup system

It's best to use a certified solar installer or electrician to install your solar batteries and connect them to your solar array, your home, the grid and an EV charger, if you desire. You should expect to spend a few thousand dollars for the labor involved, and there may be additional components like inverters, charge controllers and EV charge stations that can also add hundreds or thousands of dollars in expense. 

If you have confidence in your DIY skills and experience with electricity, it is possible to install batteries yourself. Just be sure to check with local regulations, building codes and equipment warranties. 

If you go the DIY route, make sure all batteries are the same age (ideally new). Don't mix new batteries with older ones to help make sure they take a charge evenly.

Maintaining a battery backup system

For all batteries, follow any manufacturers' instructions regarding monitoring the depth of discharge. Generally for lead acid batteries, this means trying to keep them over half charged as much as possible. Many lithium ion batteries can safely be taken down to only 10% charge. Flooded lead acid batteries also need to be topped off with distilled water a few times a year.  

Lifespan and warranties

A few years after installation, you may notice that your battery backup system doesn't hold a charge as well as it used to. That's because, like other types of batteries, battery backups lose storage capacity over time. 

To account for this, battery backups include a warranty that expresses how efficient the battery should be by the end of the warranty period. Many of the top solar batteries offer 10 years and 70%, meaning that by the end of the 10-year warranty, the battery should still operate at 70% of its original performance. Lead acid battery warranties typically last for two to five years.

Inverters and batteries 

Inverters play an important role in how the battery stores and converts solar energy. While solar panels generate electricity in direct current, the electric grid and homes generally use alternating current. An inverter can convert AC to DC or vice versa, and most solar batteries include an inverter to store the energy in DC form, as well as an inverter to convert it back into AC to be used in the grid or the home.

Because inversion of current isn't perfectly efficient, battery producers are always experimenting with how to invert less often and increase the efficiency of the battery. As a result, some batteries will not have inverters for both input and output included in the system. Talk to your solar installer about the battery system you're considering so that you can make sure you have all the external inverters you need.

Beware cheap inverters, which are everywhere. To power modern household appliances, a pure sine wave inverter is essential, otherwise you may end up frying some of the more delicate electronic circuits in your home. 

FAQs

Why do I need a battery with solar panels?

Solar power is available for only part of the day. Adding a solar power storage battery system ensures you always have power when the sun isn't out or during a power outage.

Can I install my own solar battery?

A professional solar electricity system installer can help you select a battery that works well with your goals, whether you want to be entirely off-grid, have an emergency store for outages or minimize your costs from the electric company during peak hours.

DIY battery installation instructions abound online, but beware. Working with electrical equipment is dangerous and doing so without the proper training may also void your warranties and put you out of compliance with codes and other regulations.

Do solar batteries qualify for the federal tax credit?

Yes. The 30% federal solar tax credit can be applied to the total cost of your solar battery system if your battery can hold at least three kilowatt-hours of energy and is installed in 2023 or later.

How many solar batteries do I need to power my house?

It depends on how you intend to use them. Likely, fewer batteries are required if you simply hope to maximize net metering savings. To keep your home powered during an extended blackout, you will need to calculate your total power needs

Energy Storage System Buyer’s Guide 2024

Solar Battery Buying Guide: Everything You Need to Know

Further reading:
What is the cost of lithium energy storage system?
Buying Diesel? Some Pros and Cons to Consider
Fuel Dilution in Engine Oil - How It Happens and What It Leads To
How Do Energy Storage Systems Save Money?
How does EV charging system work?

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