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Energy Storage Systems

Founded Year



Reverse Merger | IPO

Total Raised


About Energy Storage Systems

Energy Storage Systems (ESS) manufactures low-cost, long-duration iron flow batteries for commercial and utility-scale energy storage applications requiring 4+ hours of flexible energy capacity. Its long-duration energy storage platforms, the Energy Warehouse (EW) and Energy Center, use iron, salt, and water for the electrolyte, and deliver an environmentally safe, long-life energy storage solution for the world’s renewable energy infrastructure. The firm was founded in 2011 and is based in Wilsonville, Oregon.

Headquarters Location

26440 SW Parkway Ave., Bldg. 83

Wilsonville, Oregon, 97070,

United States


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Research containing Energy Storage Systems

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CB Insights Intelligence Analysts have mentioned Energy Storage Systems in 1 CB Insights research brief, most recently on Dec 7, 2021.

Expert Collections containing Energy Storage Systems

Expert Collections are analyst-curated lists that highlight the companies you need to know in the most important technology spaces.

Energy Storage Systems is included in 2 Expert Collections, including Energy Storage.


Energy Storage

1,232 items

This collection includes large and small energy storage technology, from grid-scale molten salt containers to small, thin-film lithium-ion batteries.


Grid and Utility

1,554 items

This collection includes companies that are working on software and hardware to improve grids, utilizing new pricing models, and developing microgrids.

Energy Storage Systems Patents

Energy Storage Systems has filed 5 patents.

patents chart

Application Date

Grant Date


Related Topics




Electrochemistry, Hydrogen production, Fuel cells, Chemical processes, Battery types


Application Date


Grant Date



Related Topics

Electrochemistry, Hydrogen production, Fuel cells, Chemical processes, Battery types



Latest Energy Storage Systems News

Delivering Opportunity: How New Industries Will Power Local Economies and the Clean Energy Transition

Feb 2, 2023

02/02/2023 | 08:31am EST Message : By Eric Dresselhuys, CEO The International Energy Agency recently declared that "The world is entering a new age of clean technology manufacturing, and countries' industrial strategies will be key to success." In the United States, major developments in 2022 positioned American manufacturers to lead the global clean energy transition. With this leadership position comes the opportunity for American workers and communities to realize broad benefits as we build the clean energy technology in demand worldwide. What will these benefits look like? First, we will see accelerated progress in our fight against climate change. In addition to rapidly decarbonizing the energy system, rapid deployment of new technologies will underpin increasingly resilient energy infrastructure. This will ensure delivery of clean, reliable power even as extreme temperatures, wildfires, drought, and other climate-driven emergencies become the new normal. Second, new jobs and economic opportunities will be created as American clean technology manufacturers, with the support of federal policies such as the Inflation Reduction Act (IRA), expand production and increasingly leverage domestic supply chains. It is estimated that the IRA will create more than nine million jobs within the next decade; incentives contained in the bill encourage these new jobs to be located in communities affected by the loss of fossil fuel infrastructure. As the University of Michigan finds, wind and solar jobs have the potential to fully replace jobs lost at coal power plants across the country without requiring employee relocation. Third, historically disadvantaged communities, who have long borne the brunt of fossil fuel pollution, will begin to see relief. Communities of color are exposed to 28% more nitrogen dioxide pollution than higher-income, majority-white neighborhoods. The IRA contains key provisions to drive the benefits of new clean energy technologies towards those communities that have historically experienced the greatest impacts from fossil fuels. At ESS, we are proud to play a role in delivering clean, resilient energy technology - and economic opportunity - that will underpin the emerging clean energy economy. The iron flow batteries that ESS manufactures offer a sustainable, safe and non-toxic long-duration energy storage solution which will be critical to a decarbonized energy system. Demand for ESS technology is growing rapidly as utilities, independent power producers and other large energy users increasingly rely upon renewable energy. In 2022 alone, we announced major partnerships with the Sacramento Municipal Utility District (SMUD) for up to 2 GWh of energy storage over the next five years, as well as an agreement with Energy Storage Industries Asia Pacific , an Australian energy service provider, for up to 12 GWh of iron flow batteries. ESS offers a case study in how new technologies can deliver economic opportunity. Nowhere is our positive impact more evident than in our hometown of Wilsonville, Oregon. According to a recent economic impact analysis, ESS' operations in 2022 drove $173.4 million in economic activity and directly or indirectly supported over 530 full-time jobs. As we scale to meet growing global demand, the economic benefits that our operations deliver will grow as well. In one scenario modeled, a tenfold increase in manufacturing capacity at our Wilsonville facility over 2022 levels would deliver an economic impact of $200 million, creating and supporting thousands of jobs through the expansion project alone. Once the expanded plant was operational, it is estimated that there would be nearly 2,000 employees in Oregon working to meet global demand for long-duration energy storage.

Energy Storage Systems Frequently Asked Questions (FAQ)

  • When was Energy Storage Systems founded?

    Energy Storage Systems was founded in 2011.

  • Where is Energy Storage Systems's headquarters?

    Energy Storage Systems's headquarters is located at 26440 SW Parkway Ave., Bldg. 83, Wilsonville.

  • What is Energy Storage Systems's latest funding round?

    Energy Storage Systems's latest funding round is Reverse Merger.

  • How much did Energy Storage Systems raise?

    Energy Storage Systems raised a total of $52.54M.

  • Who are the investors of Energy Storage Systems?

    Investors of Energy Storage Systems include SB Energy, BASF Venture Capital, Breakthrough Energy Ventures, Fidelity Investments, Tortoise Capital Advisors and 16 more.

  • Who are Energy Storage Systems's competitors?

    Competitors of Energy Storage Systems include 24M Technologies, Energy Dome, Moxion , Noon Energy, Ecolectro, Cadenza Innovation, Beyond Limits, Quidnet Energy, Rivus, Form Energy and 54 more.

Compare Energy Storage Systems to Competitors

Form Energy Logo
Form Energy

Form Energy develops low-cost energy storage to replace fossil baseload generation with renewable energy to successfully reduce carbon on a global level. Form Energy was formerly known as Baseload Renewables. The company was founded in 2017 and is based in Somerville, Massachusetts.

Eos Energy Storage Logo
Eos Energy Storage

Eos Energy Storage develops low-cost energy storage solutions for the electric utility and transportation industries. The company was founded in 2008 and is based in Edison, New Jersey. On June 24th, 2020, Eos Energy Storage was merged with B. Riley Principal Merger Corp. II. The terms of the transaction were not disclosed.

VRB Energy Logo
VRB Energy

VRB Energy is an advanced vanadium redox battery solution provider.

ViZn Energy Systems Logo
ViZn Energy Systems

ViZn Energy Systems, formerly Zinc Air, is focused on the development of sustainable energy storage solutions for transportation and smart grid applications intended to provide high levels of efficiency at low costs. ZAI is also committed to providing the "greenest" battery technology using zinc chemistry, which is abundant, inexpensive and environmentally friendly.


H2 provides energy storage solutions, such as micro-grid, renewable integration, telecommunication tower, and utility solutions that focus on flow battery technology to create change towards shaping a sustainable energy ecosystem. It was founded in 2010 and is based in Daejeon, South Korea.

V-Flow Tech

V-Flow Tech produces long-lasting energy storage solutions for renewables.

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