# Best Battery Storage Systems Providers - Page 2 *By [Subhransu Sahu](https://research.g2.com/insights/author/subhransu-sahu)* Stationary battery storage solutions, sometimes referred to as Battery Energy Storage Systems (BESS), are systems designed to store electrical energy. These systems serve a variety of energy optimization purposes, ultimately improving the quality, reliability and affordability of electricity. Stationary battery storage solutions can be used in a variety of applications within the residential, commercial and industrial, and utility segments. Residential: Residential customers typically use battery storage to reduce their electric bill by shifting grid energy consumption from on-peak to off-peak hours. Battery storage may also make residential solar installations viable in areas without net metering. Commercial and Industrial: Commercial and industrial customers typically use battery storage to shave their peak energy demand, which typically comes at a premium from the Utility providers. Stored energy is released to keep the demand on the Utility at or below a set point. The storage system recharges either when demand falls below that set point or during off-peak hours. Utility: Utilities apply battery storage to reduce congestion on transmission and distribution lines and mitigate the need to upgrade them. Independent power producers may also use battery storage to increase the value of an intermittent renewable generation asset, by guaranteeing specific capacity at certain times of the day (‘capacity firming’). Because of their ability to both provide and absorb power in seconds, battery storage solutions have become very valuable to the grid operators, enabling better grid resiliency. Several battery technologies exist, which include Lithium-ion, Lead-acid, Sodium-Sulfur, Zinc-based and Vanadium-Redox. Depending on the technology used, the battery storage system will perform differently in terms of capacity, response time, discharge time and depth of discharge. To qualify for inclusion in the battery storage category, a system must: - Encompass all products required to store and discharge energy: battery, inverter, transformer, switchgear, and a control system ## How Many Battery Storage Systems Providers Products Does G2 Track? **Total Products under this Category:** 42 ### Category Stats (May 2026) - **Average Rating**: 4.34/5 - **New Reviews This Quarter**: 1 - **Buyer Segments**: Enterprise 100% *Last updated: May 21, 2026* ## How Does G2 Rank Battery Storage Systems Providers Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 0+ Authentic Reviews - 42+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. ## What Are the Top-Rated Battery Storage Systems Providers Products in 2026? ### 1. [Microgrid](https://www.g2.com/products/microgrid/reviews) Microgrids present a unique set of challenges for grid owners and operators. These electrically islanded systems can operate with or without a connection to the grid. **Who Is the Company Behind Microgrid?** - **Seller:** [Greensmith](https://www.g2.com/sellers/greensmith) - **Year Founded:** 1834 - **HQ Location:** Helsinki, FI - **LinkedIn® Page:** https://www.linkedin.com/company/166989 (15,912 employees on LinkedIn®) ### 2. [Microgrid Services](https://www.g2.com/products/microgrid-services/reviews) AMS built a unique energy analytics platform that identifies the cost and value of each kilowatt hour of energy consumed by a facility in order to design an optimized energy profile. The AMS platform uses energy consumption data, retail and wholesale energy prices, carbon intensity and efficiency metrics to create a diagnostic energy profile for each building. **Who Is the Company Behind Microgrid Services?** - **Seller:** [Advanced Microgrid Solutions](https://www.g2.com/sellers/advanced-microgrid-solutions) - **Year Founded:** 2021 - **HQ Location:** Singapore, SG - **LinkedIn® Page:** http://www.linkedin.com/company/advanced-microgrid-solutions (2 employees on LinkedIn®) ### 3. [Microgrid Solutions](https://www.g2.com/products/microgrid-solutions/reviews) S&C integrates hardware, controls, and services for microgrids. **Who Is the Company Behind Microgrid Solutions?** - **Seller:** [S&C Electric Company](https://www.g2.com/sellers/s-c-electric-company) - **Year Founded:** 1911 - **HQ Location:** Chicago, US - **Twitter:** @SandC_US (8 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/25894 (2,587 employees on LinkedIn®) ### 4. [ReFlex](https://www.g2.com/products/reflex/reviews) The ReFlex is a single module, rapidly deployable energy storage solution designed with commercial and industrial users in mind. The battery is factory-integrated (including AC power conversion), and plug & play. Comprised of a single 20’ standard shipping container, the system provides 100kWAC of power for 4.5 hours, with peak power of 125kWAC and maximum energy of 500 kWhAC. **Who Is the Company Behind ReFlex?** - **Seller:** [UniEnergy](https://www.g2.com/sellers/unienergy) - **HQ Location:** Mukilteo, WA - **Twitter:** @UETechnologies (347 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®) ### 5. [Scalable Modular Systems](https://www.g2.com/products/scalable-modular-systems/reviews) Fluidic has developed a scalable smart battery architecture that is configurable for a broad range of energy storage applications. The system design is scalable for the power and energy requirements of an application and installable in either outdoor enclosures where space is constrained or on standard indoor equipment for large-scale deployments. Unlike conventional batteries, overall system performance is not limited by the performance of the lowest performing cell in a system and battery cells of varying ages can be installed together in a system without degradation of performance. **Who Is the Company Behind Scalable Modular Systems?** - **Seller:** [Fluidic Energy](https://www.g2.com/sellers/fluidic-energy) - **Year Founded:** 2006 - **HQ Location:** Scottsdale, US - **LinkedIn® Page:** http://www.linkedin.com/company/fluidic-energy (57 employees on LinkedIn®) ### 6. [Siestorage Platform](https://www.g2.com/products/siestorage-platform/reviews) The Siestorage architecture includes closed-loop controls and pulse modulation for the power semiconductors that enable extremely rapid response times needed for microgrid and critical power applications. Real-time data and control system delivers fast control of voltage, current, frequency and power. Complete with HMI, data acquisition, data trend analysis, and historian services. System control can be accomplished through onsite HMI, remote HMI, or integration with external energy management system. **Who Is the Company Behind Siestorage Platform?** - **Seller:** [Fluence](https://www.g2.com/sellers/fluence) - **Year Founded:** 2018 - **HQ Location:** Arlington, Virginia, United States - **Twitter:** @fluenceenergy (4,677 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/fluenceenergy (1,946 employees on LinkedIn®) - **Ownership:** NASDAQ: FLNC ### 7. [sonnenBatterie](https://www.g2.com/products/sonnenbatterie/reviews) The sonnenBatterie eco is an energy storage solution that utilizes intelligent energy management software. **Who Is the Company Behind sonnenBatterie?** - **Seller:** [Sonnen](https://www.g2.com/sellers/sonnen) - **Year Founded:** 2010 - **HQ Location:** Wildpoldsried, Bavaria, Germany - **Twitter:** @SonnenUSA (2,118 Twitter followers) - **LinkedIn® Page:** https://de.linkedin.com/company/sonnengmbh (594 employees on LinkedIn®) ### 8. [StorEdge](https://www.g2.com/products/storedge/reviews) SolarEdge's StorEdge storage solution automatically provides homeowners with backup power in case of grid interruption, and allows home owners to maximize self-consumption and to increase energy independence. **Who Is the Company Behind StorEdge?** - **Seller:** [SolarEdge](https://www.g2.com/sellers/solaredge) - **Year Founded:** 2006 - **HQ Location:** Israel - **Twitter:** @SolarEdgePV (30,688 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/solaredge (3,054 employees on LinkedIn®) - **Ownership:** NASDAQ: SEDG ### 9. [SunFlex](https://www.g2.com/products/sunflex/reviews) The SunFlex Energy Storage platform is optimized for maximum solar capture and delivery, enabling solar facilities to sell up to 50% more solar energy per site. The platform eliminates solar variability across the day – such as that caused by passing clouds, and expands the delivery of energy into the night, creating an on-demand solar resource. The higher power conversion efficiencies of our platform mean more energy delivered and better project economics. **Who Is the Company Behind SunFlex?** - **Seller:** [Fluence](https://www.g2.com/sellers/fluence) - **Year Founded:** 2018 - **HQ Location:** Arlington, Virginia, United States - **Twitter:** @fluenceenergy (4,677 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/fluenceenergy (1,946 employees on LinkedIn®) - **Ownership:** NASDAQ: FLNC ### 10. [Sunverge Infinity](https://www.g2.com/products/sunverge-infinity/reviews) The Sunverge Infinity extends the company's energy management platform to support multiple stationary storage systems. The Sunverge Infinity offers homeowners additional high-quality battery options that deliver bill savings and backup power, while giving utilities the ability to aggregate those units, as well Sunverge One systems, into centrally managed virtual power plants. **Who Is the Company Behind Sunverge Infinity?** - **Seller:** [Sunverge](https://www.g2.com/sellers/sunverge) - **Year Founded:** 2009 - **HQ Location:** San Francisco, US - **Twitter:** @Sunverge (3,254 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/1491616 (13 employees on LinkedIn®) ### 11. [Transportable ESS](https://www.g2.com/products/transportable-ess/reviews) A 800 kWh/500 kW mobile energy storage container capable of being deployed for localized outages, disaster relief or special events in lieu of a Diesel generator. **Who Is the Company Behind Transportable ESS?** - **Seller:** [Electrovaya](https://www.g2.com/sellers/electrovaya) - **Year Founded:** 1997 - **HQ Location:** Mississauga, CA - **Twitter:** @Electrovaya (1,767 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/electrovaya (84 employees on LinkedIn®) - **Ownership:** TSX:EFL ### 12. [UniSystem](https://www.g2.com/products/unisystem/reviews) Each Uni.System delivers 600kW power and 2.2MWh maximum energy in a compact footprint of only five 20’ containers. Designed to be modular, multiple Uni.Systems can be deployed and operated with a density of more than 20MW per acre, and 40MW per acre if the containers are double-stacked. **Who Is the Company Behind UniSystem?** - **Seller:** [UniEnergy](https://www.g2.com/sellers/unienergy) - **HQ Location:** Mukilteo, WA - **Twitter:** @UETechnologies (347 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®) ### 13. [URSAA Energyworx](https://www.g2.com/products/ursaa-energyworx/reviews) Ursaa is a leading provider of telematics solutions, with a focus on battery intelligence. We are a team of industry experts with over three decades experience in working with clients from various sectors including EV fleet aggregrators, EV OEM and Battery OEM. Our proprietary technology is designed to optimize battery performance, extend battery life, and reduce maintenance costs. By continuously monitoring and analyzing battery data, we are able to provide real-time alerts and insights that help our clients make informed decisions about their battery-powered assets. Our telematics platform is easy to use and offers a range of features including GPS tracking, remote diagnostics, and predictive maintenance. We also offer custom integrations and API access to help our clients fully leverage the power of our solution. We are proud to have a diverse and satisfied customer base, including some of the largest companies. Our team is dedicated to providing exceptional service and support, and we are constantly innovating to meet the evolving needs of our clients. **Who Is the Company Behind URSAA Energyworx?** - **Seller:** [URSAA](https://www.g2.com/sellers/ursaa) - **Year Founded:** 2022 - **HQ Location:** Noida, IN - **LinkedIn® Page:** http://www.linkedin.com/company/ursaaenergyworx (5 employees on LinkedIn®) ### 14. [Vanadium Redox Flow](https://www.g2.com/products/vanadium-redox-flow/reviews) Vanadium Redox batteries don't degrade like lithium-ion or lead acid batteries do, thus, when paired with Vionxs flow battery design and industrial quality manufacturing, the charge-discharge cycle of a Vionx battery can continue indefinitely without compromise. **Who Is the Company Behind Vanadium Redox Flow?** - **Seller:** [Vionx Energy](https://www.g2.com/sellers/vionx-energy) - **HQ Location:** Woburn, MA - **Twitter:** @VionxEnergy (147 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®) ### 15. [VoltPacks](https://www.g2.com/products/voltpacks/reviews) Northvolt's battery packs are designed to replace the diesel engine under the harshest of circumstances. Highly flexible and configurable for stand-alone use or integration into customised systems. **Who Is the Company Behind VoltPacks?** - **Seller:** [Northvolt](https://www.g2.com/sellers/northvolt) - **Year Founded:** 2016 - **HQ Location:** Stockholm, Stockholm County, Sweden - **LinkedIn® Page:** https://www.linkedin.com/company/northvolt/ (3,232 employees on LinkedIn®) ### 16. [Y.Cube](https://www.g2.com/products/y-cube/reviews) Y.Cube is a fully-integrated plug-and-play energy storage solution for smaller-scale applications. Its modular design approach enables system sizes from 200 kW to 10 MW for longer-duration storage systems, scaling up to 20 MW for shorter-duration. Every component has been specifically selected to deliver optimal system performance and minimize operating costs. **Who Is the Company Behind Y.Cube?** - **Seller:** [Younicos](https://www.g2.com/sellers/younicos) - **HQ Location:** Houston, TX - **Twitter:** @Younicos (1,258 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®) ### 17. [Y.Station](https://www.g2.com/products/y-station/reviews) Y.Station is pre-designed and pre-engineered to deliver optimized system layout, minimization of system losses as well as efficient project planning and faster project deployment. **Who Is the Company Behind Y.Station?** - **Seller:** [Younicos](https://www.g2.com/sellers/younicos) - **HQ Location:** Houston, TX - **Twitter:** @Younicos (1,258 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®) ## What Is Battery Storage Systems Providers? [Greentech Providers](https://www.g2.com/categories/greentech)