PJM Grid's Largest Battery Storage Project Under Construction in Ohio

Construction Begins on PJM's Largest Battery Storage Facility in Ohio

Construction has officially begun on the largest battery storage project connected to the PJM grid, located in Ohio. The project is designed to strengthen regional peak shaving capabilities and enhance grid reliability across the PJM interconnection.

This milestone reflects accelerating U.S. investment in grid-scale storage infrastructure. For B2B buyers, this development signals a maturing market for large-scale battery deployments, with implications for system integrators, cell suppliers, and grid operators evaluating similar projects.

• Largest battery storage project on the PJM grid enters construction phase.
• Ohio site will support regional peak demand management and operational resilience.
• Project demonstrates growing commercial viability of utility-scale energy storage.

This means that companies involved in battery supply chains, energy management systems, and grid infrastructure will likely see expanded opportunities as the United States scales up storage capacity to meet renewable integration and reliability targets.

Source: Electrek, July 30, 2026 – PJM grid’s largest battery is now under construction in Ohio

Supplier Solution Note

Large battery construction reflects growing grid demand for long-duration storage and broader wholesale market participation.