MN8 Energy, Google, and Eos to build solar and storage project in West Virginia

MN8 Energy, Google, and Eos Energy Enterprises (NASDAQ: EOSE) announced a collaboration to deliver solar and energy storage resources to the PJM grid in West Virginia, according to a press release.

The project, called Mammoth Solar, is located in Kanawha County and combines 86 MW of utility-scale solar, 10 MW/100 MWh of Eos' Z3 zinc-based long-duration energy storage, and 70 MW/280 MWh of lithium-ion energy storage. MN8 Energy will own and operate the project.

Google will purchase the energy, capacity, and clean energy attributes of the project to support its data centers in the region, including a planned facility in West Virginia. The solar component is expected to reach commercial operation in 2028, with lithium-ion storage following in 2029 and long-duration storage in 2030.

The project is described as the first commercial-scale long-duration energy storage deployment in West Virginia. It also marks Google's first use of Eos' Z3 technology and the first project under a previously announced MN8-Eos Master Supply Agreement.

The site is built on a reclaimed coal mine. MN8 estimates the project represents up to $350 million in capital investment and is expected to generate approximately $4 million in property tax revenue for the county and local schools over the first 20 years of operation. Construction is expected to create approximately 200 jobs.

"This project reflects what MN8 does best: understanding a customer's unique energy profile and building a solution around it," said Jon Yoder, President and CEO of MN8 Energy.

"The grid needs more from every megawatt of new generation," said Nathan Kroeker, Chief Commercial Officer at Eos.

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