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.
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
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.
Warranty: 10-year
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.
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
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
This is a Full Energy Storage System for residential, C&I and microgrid applications
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“
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
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
Easy installation
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
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
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
APbattery-51.2V6.5kWh
Warranty: 10 years
Website: https://usa.apsystems.com/apstorage/
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
This is a Full Energy Storage System For Off-grid and grid-tied residential
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:
Type of battery chemistry: Lithium iron phosphate (LFP)
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
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
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
Chemistry: Lithium Nickel Manganese Cobalt (NMC)
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
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
This is a Hybrid solar + storage PV inverter and battery inverter/charger for off-grid Resi, grid-tied and hybrid residential applications.
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:
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“
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
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
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
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
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
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
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.
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
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.
This is a Portable Power Station used for home-back & outdoor scenarios )
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
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
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.
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
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
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
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.
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
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
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
This is a complete end-to-end Residential Energy Storage System For grid-tied residential
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
Type of battery chemistry: Lithium Ferrous Phosphate (LFP)
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:
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
Type of battery chemistry: metal-hydrogen
For C&I and microgrid applications
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.
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
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)
Power Rating (Power Series)
Energy Rating (Energy Series)
Energy Rating (Power Series)
Battery Chemistry
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
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.
Warranty: 5 years, extendable to 20 years
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
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
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:
Warranty: 5 years | Website
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
This is a Full Energy Storage System For Grid-tied residential and off-grid residential
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
This is a Full Energy Storage System For Off-grid residential / grid-tied residential and C&I / microgrids with 48 volt inverters.
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
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.
Warranty: 15 year performance warranty (8,000 cycles) at 100% Depth of Discharge | Website
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
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
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
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
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 (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
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).
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 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
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
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.
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.
Warranty: Standard 5 years; up to 10 years available. Savings performance guarantee.
Website: Elexity.io
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
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
Type of battery chemistry: Lithium Iron Phosphate (LFP)
Systems / Inverters with closed loop communication: Direct closed loop communication with aGate and aPower
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
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.
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
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.
Warranty: 10 years | Website
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.
Warranty: 5 years, 20-year extended warranty | Website
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.
Warranty: 5 year, 20-year extended warranty | Website
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.
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.
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
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:
Warranty: 10-year warranty
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
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:
Warranty: 1 year
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
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
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
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.
Warranty: 10 Year Warranty
Website: www.renogyx.com
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.
Warranty: 10 Years
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.
Warranty: 10 Year
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
This is a Hybrid solar + storage PV inverter For grid-tied residential
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
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
Type of battery chemistry: LFP
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
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
This is a Hybrid solar + storage PV inverter For C&I applications
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
This is a Hybrid solar + storage PV inverter For C&I applications
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
This is a Full Energy Storage System For C&I applications
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
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
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.
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
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.
Warranty: 10 years
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
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.
Warranty:
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.
Warranty: 132 months or 6,000 cycles
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Grid-connected batteries can be classified according to what’s included and how they connect to a solar system. There are three main groups: AC batteries, battery-only products and all-in-one units.
Products such as the Tesla Powerwall 2 and Enphase include an inverter in the same box as the battery. Electricity flows in or out of the box at 230 volts alternating current (AC), the same as your house wiring. The product is connected to your existing house switchboard, separately from the solar panels and solar inverter. Such ‘AC coupling’ makes for an easy battery installation or retrofit to an existing solar system. The battery can be located far from the solar inverter, for example in a cool location to maximise battery lifespan.
All batteries must be charged with direct current (DC). When an AC-coupled system is charging the battery, first the solar inverter converts the solar panels’ output from DC to AC, then the battery inverter switches it back to DC again. Each step results in some energy loss, so an AC-coupled system’s overall charging efficiency is generally lower than for a DC-coupled alternative (see below). On the other hand, much of the time your solar panels’ generation is not stored in the battery, but is instead used immediately by home appliances or exported to the grid (when the battery is full). In this case there is only a single conversion in the solar inverter, which tends to have very high efficiency.
An AC-coupled system includes two inverters whose output may combine to help power appliances. For example, if during a sunny spell your solar inverter is producing 3 kW of power and your battery inverter has a capacity of 4 kW, you can run appliances with a total power of 7 kW without importing from the grid.
However, having two inverters can also complicate grid connection. Your local electricity distributor will have rules limiting solar system size. These rules may be based on the system’s total inverter capacity, including both the solar inverter and battery inverter.
Products such as the LG Chem RESU 10 and Fronius Solar Battery don’t include an inverter. They include the battery and supporting components such as safety switches, cooling devices and battery management system (BMS, see ‘Specifications and terms’ for definition). The box is connected with cables carrying DC current at a suitable voltage for the battery, typically 48 volts but sometimes at a level similar to a string of solar panels, e.g. 400 volts. This is known as DC coupling. The cables may also contain wires communicating information such as the battery’s state of charge. These products must be connected to a compatible inverter or charge controller. Typically they are connected to what’s called a ‘hybrid inverter’, which acts as a normal solar inverter but also includes a charge controller allowing connection of a DC-coupled battery. For example, the Fronius Solar Battery is only compatible with Fronius hybrid inverters. Typically the battery is located directly below the hybrid inverter. These batteries can often also be installed in other situations, for example AC-coupled or off-grid.
With DC coupling, the cable from the roof feeds a charge controller which regulates the panels’ DC electricity to a voltage and current suitable for the battery. A single inverter is included, supplying 230V AC to the house switchboard. A common misconception says that in a DC-coupled system all solar generation must run through the battery, incurring additional losses due to battery round-trip efficiency. In fact if you’re running appliances while the sun’s shining, they will be powered directly via the charge controller and inverter. Current can flow via the battery terminals without entering the battery. Alternatively a hybrid inverter might bypass the charge controller altogether and operate like a normal solar inverter.
DC coupling is beneficial for oversized solar systems (a trend in recent years, that produces a generation curve that is much flatter than normal, with extra generation available in the morning and evening). For example, you might want to install 8 kW of panels feeding a 5 kW inverter, because the local distributor has a 5 kW inverter connection limit. Many solar inverters can handle oversized arrays by throttling the power at times of surplus and wasting some potential solar generation. However, if you add a DC-coupled battery, this surplus from the panels can be stored rather than wasted. (In an AC coupled system, all solar generation that flows to the battery goes via the grid-interactive inverter, so the excess energy from an oversized array is never available for the battery to store.)
Some distributors allow the connection of large solar systems but impose an export limit. For example they’ll allow 8 kW of panels feeding an 8 kW inverter, but only if you install a device limiting export to the grid to a maximum of 5 kW. If your generation exceeds consumption by more than this limit, the surplus solar electricity from the inverter is wasted. Either an AC-coupled or DC-coupled battery can store this type of surplus.
Products such as the Alpha ESS Eco and Sunverge SIS contain the entire solar-battery system except for the solar panels. Inside the box, the battery may be DC-coupled (see above) but is more likely AC-coupled. The product is connected to your switchboard using standard household wiring: 230 V AC.
All-in-one units allow for fast, neat installation, especially for new solar systems or retrofits where an old solar inverter will be replaced. However, they are physically large, often approaching the size of a fridge.
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