The US Department of Energy (DOE) as part of the Biden-Harris Administration’s Invest in America initiative, has officially granted a $303.5 million loan guarantee to Eos Energy Enterprises, Inc.  The loan includes $277.5 million in principal and $26 million in capitalized interest and aims to produce next-generation zinc-bromine battery energy storage systems (BESS). The project will significantly advance the nation’s energy storage capabilities, create thousands of jobs, and drive regional economic growth.
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Boosting Energy Storage for a Cleaner, More Reliable Grid
The new production lines will manufacture Eos Z3™ batteries for large-scale grid storage. These batteries allow utilities and industries to store energy during low demand and use it during peak periods, stabilising the grid. Once operational, the four Turtle Creek and Duquesne production lines will produce 8 GWh of storage annually by 2027. This capacity will power over 300,000 homes instantly or meet the annual electricity needs of 130,000 homes daily.
Jennfier M. Granholm, US Secretary of energy said, “The Biden-Harris Administration has successfully implemented a new economic playbook that has boosted America’s competitive standing on the world stage as an innovation leader in the cutting-edge technologies of the future.”
She added, “Today’s announcement will bolster the nation’s energy security while ensuring President Biden’s manufacturing boom continues to deliver for generations to come.”
This project will create up to 1,000 jobs, including high-quality manufacturing positions that the United Steelworkers (USW) will unionize. These jobs will boost Pennsylvania’s regional economy and support the growth of clean energy industries across the United States.
The DOE’s investment is part of its effort to foster good-paying jobs nationwide. Since taking office, the Biden-Harris Administration has created over 16 million jobs, with the energy sector driving expansion.
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A Sustainable Alternativ. e to Lithium-ion Batteries
Eos’s Z3 batteries use zinc-bromine chemistry, providing a safer, more durable, and cost-efficient solution for long-duration energy storage. They are non-flammable, require no active cooling, and endure 6,000 charge cycles. Eos plans to source nearly all Z3 materials from US suppliers, reducing reliance on imports and protecting the supply chain.
Eos also strengthens local communities by offering internship and apprenticeship opportunities through its Clean Energy Careers Program for workforce development. This initiative aims to equip students with skills for long-term careers in the clean energy sector. Eos’s Turtle Creek facilities align with the Biden-Harris Justice40 Initiative, directing 40% of clean energy investments to marginalised communities.
Through DOE’s Title 17 Program, the loan guarantee supports innovative energy projects that reduce carbon emissions and enhance energy security.