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INDIVIDUAL FACILITIES AND SELECTED SOURCES
Below is basic information about individual facilities in our database and selected sources we've drawn on to support the analysis.  To navigate to other sites, use the search page.

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Marshall Township Expansion

Eos Energy

Warrendale, PA, USA

-80.1058570050776, 40.6674520461014

The Big Green Machine Site ID: 299B

Project Timeline

Project Timeline Unavailable (Insufficient Information)

Additional Information:

Sector: Batteries

Activity: Manufacturing

Product: Storage Battery


Project Announcement Date: 10/21/2025

Date Commercial Production Started:

Announced Post Inflation Reduction Act: Yes


Operating Status: Planned


Target Jobs: 500

Capital Investment: $176.45 million

Congressional District: PA17

Government Subsidies:

Local/State: $12 million

Selected Sources:

“Governor Shapiro Secures Nearly $353 Million Investment from Eos Energy to Relocate Headquarters to Pittsburgh and Expand PA-Based Battery Manufacturing Operations in Allegheny County, Creating 735 New Jobs”, PA Department of Community & Economic Development, 21 Oct 2025. 🔗


“Here's Why Eos Energy Stock Soared Over 100% in 5 Weeks”, Neha Chamaria, Yahoo! News, 08 Oct 2025. 🔗


“Eos Energy to build second zinc battery storage manufacturing plant in Pittsburgh”, Kelly Pickerel, Solar Power World, 21 Oct 2025. 🔗


“ICYMI: Governor Shapiro Announces $352.9 Million Eos Energy Investment to Expand Pennsylvania Battery Manufacturing and Relocate Headquarters to Allegheny County, Creating 735 New Jobs”, pa.gov, 20 Oct 2025. 🔗


“Zinc battery maker Eos Energy to invest $353m in manufacturing expansion”, Blathnaid O'Dea, pv magazine USA, 02 Nov 2025. 🔗


“Zinc battery maker Eos Energy to invest $353m in manufacturing expansion, HQ relocation”, Energy Storage, 30 Oct 2025. 🔗



“U.S. government to become a shareholder in battery maker EOS”, 45980, Pittsburgh Post-Gazette, 19 Nov 2025. 🔗


Tracked Expansions, Acquisitions, or Related Sites:

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This website, dashboard, and dataset are maintained by Jay Turner and student researchers in the Environmental Studies Department at Wellesley College. It is updated at least monthly. The data presented are compiled from publicly available sources. Summary statistics are incomplete and omit data from sites where publicly available information (regarding capital investments, employment levels, etc.) is unavailable. While we make every effort to ensure the information presented here is accurate, the information should be treated as estimates. We assume no responsibility or liability for any errors or omissions. The information contained in this site is provided on an "as is" basis with no guarantees of completeness, accuracy, or usefulness. The Big Green Machine® is a registered trademark. The Big Green Machine Data © 2024 by Jay Turner is licensed under CC BY 4.0.  Please submit feedback using this formData on this site last updated on February 20, 2026. 

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