ESS Inc. joins Power Africa in partnership to accelerate deployment of grid-scale flow batteries on the continent.

May 20, 2019

PDF of Release

PORTLAND, OREGON – May 20, 2019 – ESS Inc., the leading manufacturer of safe, low-cost and long-duration energy storage systems, announced that it has joined Power Africa, a U.S. Government-led partnership coordinated by the U.S. Agency for International Development (USAID), as a private sector partner. As the program’s first flow battery partner, ESS Inc. has committed to deploying its long-duration energy storage solutions for microgrid and utility-scale projects throughout the continent.

“We are excited to become a partner of the Power Africa program,” said Craig Evans, founder and CEO of ESS Inc. “Our low cost, long-duration and long-life battery is especially suited to the needs of the African market, particularly in microgrid, renewable integration and utility grid strengthening applications. ESS Inc. looks forward to working with Power Africa and its network of project developers, utilities, and EPCs to expand the availability of electricity with the world’s most environmentally friendly battery.”

Power Africa works with African governments and coordinates the efforts of 12 U.S. government agencies, 18 bilateral and multilateral partners, and nearly 150 private companies to remove barriers that impede energy development in sub-Saharan Africa. It was launched in 2013 with the goal of increasing access and availability of electric power throughout sub-Saharan Africa – where two out of three residents lack this basic service.

Power Africa is working to add more than 30,000 MW of cleaner, more efficient electricity generation capacity and 60 million new home and business connections, and considerable progress has already been made toward this goal. As of May 2019, Power Africa has completed 121 transactions totaling over 10,000 MW. While these numbers reflect closed deals, Power Africa is internally tracking over 900 transactions that have the potential to add over 84,000 MW. Specific project information is available here.

About Power Africa

Power Africa is a U.S. Government-led partnership coordinated by the U.S. Agency for International Development (USAID). Launched in 2013, Power Africa’s goals are to increase electricity access in sub-Saharan Africa by adding more than 30,000 megawatts of electricity generation capacity and 60 million new home and business connections. Power Africa works to remove barriers that impede energy development in sub-Saharan Africa and to unlock the substantial natural gas, wind, solar, hydropower, biomass, and geothermal resources on the continent. For additional information, please visit the Power Africa website (  

About ESS Inc.

Established in 2011, ESS Inc. develops and manufactures the low-cost, long-duration Energy Warehouse (EW) flow battery for commercial and utility-scale energy storage applications requiring 4+ hours of flexible energy capacity and 20+ years of operating life with no capacity fade. The EW utilizes earth-abundant iron, salt, and water for the electrolyte, and delivers an environmentally safe, long-life energy storage solution for the world’s renewable energy infrastructure with the lowest levelized cost of storage per kWh. For more information, visit


Media Contact:
Eugene Hunt
Trevi Communications for ESS Inc.
[email protected]
978-750-0333 x.101

Links to third-party articles and/or websites are for general information purposes only and the content of any third-party article or website is solely the responsibility of the author, owner, operator or publisher of that article and/or website. Views expressed in third-party articles and/or websites reflect the opinion of the author, owner, operator or publisher as of the date of publication, and not necessarily those of ESS Tech, Inc. ESS Tech, Inc. has not independently verified such content, makes no warranties, representations or undertakings relating to such content, and bears no responsibility for the accuracy, legality or content of any external site or for that of subsequent links. Any reliance you place on such information is strictly at your own risk. You are encouraged to read and evaluate the privacy and security policies on the specific site you are entering. ESS Tech, Inc. disclaims any loss, damage and any other consequences resulting directly or indirectly from or relating to your access to the third-party website or any information you may provide or any transaction conducted on or via the third-party website or the failure of any information, goods or services posted or offered at the third-party website or any error, omission or misrepresentation on the third-party website or any computer virus arising from or system failure associated with the third-party website.