MN8 Energy is building a solar + storage system that will provide dispatchable capacity to the PJM grid serving Google’s data centers in the West Virginia region. The 86-MW solar project will pair 100 MWh of zinc-based long-duration energy storage from Eos along with 280 MWh of lithium-ion energy storage.
The solar project is expected to reach commercial operation in 2028, with lithium-ion storage and long-duration storage (LDES) following in 2029 and 2030, respectively.
MN8 custom-designed its Mammoth Solar project in Kanawha County, West Virginia, as an integrated utility-scale solar system with short- and long-duration storage that converts intermittent renewable generation into a single, dispatchable resource. It’s the first commercial-scale long-duration energy storage deployment in West Virginia.
“At Google, we’re committed to backing solutions that both serve our data center capacity needs and accelerate progress toward cleaner, more affordable energy systems,” said Lucia Tian, Director, Advanced Energy Technologies at Google. “This collaboration with MN8 and Eos aims to deploy a smart portfolio of round-the-clock technology solutions to help power our digital infrastructure, while creating meaningful economic benefits for West Virginia.”
Under the agreement, Google will purchase the energy, capacity, and clean energy attributes of the project, advancing the company’s commitment to bring new capacity to the grids where it operates. The project is part of Google’s broader efforts to accelerate LDES technology commercialization with the aim to rapidly bring its potential to communities everywhere.
“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. “Because Google was willing to pair next-generation storage with utility-scale solar, we could engineer proven and emerging technologies into one dispatchable resource — and deliver clean, around-the-clock power where the grid needs it most.”
The project marks Google’s first project that uses Eos’ American-made Z3 technology and the first project under the previously announced MN8-Eos Master Supply Agreement. The 10-MW/100-MWh system is designed to provide 10 hours of storage, extending the availability of solar generation beyond the shorter-duration energy storage resources and enabling the combined portfolio to deliver dependable capacity across more hours of the day. This project will prove how Eos’ aqueous zinc chemistry can support critical grid infrastructure.
“The grid needs more from every megawatt of new generation,” said Nathan Kroeker, Chief Commercial Officer at Eos. “Our work with Google is focused on deploying American-made long-duration storage where it solves real grid reliability challenges. Z3 extends the value of clean generation across more hours, strengthens the overall portfolio, and delivers more dependable capacity when it’s needed most.”
Built on a reclaimed coal mine in West Virginia, this project is expected to create economic opportunity in a community with a long energy history. Based on MN8’s estimates, it 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 operations, with millions more in the 15-20 years that follow. Construction is expected to create approximately 200 jobs, with additional full- and part-time roles supporting the project throughout its operating life.
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Facts Only
* MN8 Energy is building a solar + storage system for the PJM grid serving Google’s data centers in West Virginia.
* The project includes an 86-MW solar system.
* Storage components include 100 MWh of zinc-based long-duration energy storage from Eos and 280 MWh of lithium-ion energy storage.
* Commercial operation for the solar project is expected in 2028.
* Lithium-ion storage is scheduled for 2029, and long-duration storage (LDES) for 2030.
* MN8 designed the Mammoth Solar project as an integrated system with short- and long-duration storage.
* The project represents the first commercial-scale long-duration energy storage deployment in West Virginia.
* Google will purchase the energy, capacity, and clean energy attributes of the project.
* The system is designed to provide 10 hours of storage.
* The project involves Eos’ American-made Z3 technology.
* MN8 estimates the capital investment to be up to $350 million.
* Construction is expected to create approximately 200 jobs.
Executive Summary
MN8 Energy is developing an integrated solar and energy storage system for the PJM grid serving Google's data centers in West Virginia. The project involves an 86-MW solar facility paired with 100 MWh of zinc-based long-duration energy storage from Eos and 280 MWh of lithium-ion storage. The solar project is scheduled for commercial operation in 2028, with the energy storage components following in 2029 and 2030. MN8 designed this system as an integrated utility-scale solar system featuring short- and long-duration storage to provide dispatchable power from intermittent renewable generation.
Google intends to purchase the energy, capacity, and clean energy attributes of the project. This collaboration aims to deploy round-the-clock technology solutions for powering digital infrastructure while providing economic benefits to West Virginia. The project marks Google's first use of Eos’ American-made Z3 technology and is part of the MN8-Eos Master Supply Agreement. Eos emphasizes that Z3 chemistry can support critical grid infrastructure by extending clean generation across more hours.
The development is anticipated to create economic opportunities in the local community, with estimates projecting up to $350 million in capital investment and property tax revenue over 20 years, alongside approximately 200 construction jobs.
Full Take
The narrative centers on leveraging novel energy technologies—specifically long-duration storage (LDES) using zinc chemistry and lithium-ion—to solve grid reliability challenges for large-scale digital infrastructure. The framing successfully links environmental responsibility, technological advancement, and tangible local economic benefits in a historically resource-dependent region. The pattern of positioning emerging technology as the necessary bridge between intermittent renewable generation and dependable capacity allows the project to appeal simultaneously to technical necessity and community development goals.
The structure implies that complex technological integration (solar + LDES) is inherently beneficial because it creates a "dispatchable resource," positioning MN8 as the essential engineer capable of synthesizing disparate technologies into a cohesive, reliable solution. This narrative relies on establishing a hierarchy where advanced technology drives social good rather than the reverse, which requires careful scrutiny regarding whose definition of 'progress' is being prioritized.
The focus on the project's impact—creating jobs and property tax revenue in a coal-mining community—serves to anchor an otherwise high-level technological narrative in concrete, localized value. The potential implication is that infrastructure investment, when framed correctly, becomes a vehicle for generational economic transition. The underlying tension lies in ensuring that the pursuit of accelerating LDES commercialization does not overshadow or displace the immediate socioeconomic realities of the communities hosting these transitions, or whether the benefits accrue equitably to those communities relative to the scale of the investment and the timeline of realization.
BRIDGE QUESTIONS:
What independent assessments exist regarding the actual reliability metrics achieved by this blended storage portfolio versus traditional solutions? How is the projected economic benefit distributed across different stakeholders in West Virginia, beyond direct project revenue? What mechanisms are in place to ensure that technological acceleration does not create a temporal gap between innovation and community realization?
Sentinel — Human
The text reads like a professionally drafted press release or news report detailing a specific energy infrastructure project and its associated partnerships; it possesses the structure and voice of human journalism.