Google, MN8 Energy, and Eos Deploy First Commercial-Scale Long-Duration Storage in West Virginia — Eos Energy Enterprises, Inc.

Event summary

MN8 Energy, Google, and Eos Energy Enterprises are collaborating on an 86 MW utility-scale solar project with 10 MW/100 MWh of zinc-based long-duration storage and 70 MW/280 MWh of lithium-ion storage in West Virginia.
The project, located on a reclaimed coal mine, is expected to create up to $350 million in capital investment and generate $4 million in property tax revenue over the first 20 years.
Google will purchase the energy, capacity, and clean energy attributes of the project, with commercial operation of the solar project expected in 2028, followed by storage components in 2029 and 2030.
This is the first commercial-scale long-duration energy storage deployment in West Virginia and Google’s first project using Eos’ Z3 technology.

The big picture

This project represents a strategic shift toward integrating long-duration energy storage with renewable generation to support data center demand, aligning with broader industry trends toward grid resilience and decarbonization. The collaboration between MN8, Google, and Eos highlights the growing role of private-sector partnerships in advancing clean energy infrastructure, particularly in regions transitioning away from fossil fuels. The $350 million investment underscores the scale of capital being deployed to modernize energy systems.

What we're watching

Technology Integration: How the combination of solar, lithium-ion, and zinc-based storage will perform as a dispatchable resource for grid reliability.
Regulatory Dynamics: Whether the project’s success will accelerate the adoption of long-duration energy storage in other coal-heavy regions.
Economic Impact: The pace at which similar projects can drive economic revitalization in former coal communities.