Competitive Edge Life

Why the Google-MN8-Eos deal is a game changer for $EOSE 👇 $GOOG is putting Eos Z3 zinc batteries into a real project that will serve its own data-center load on the PJM grid. The project (Mammoth Solar, Kanawha County, WV): - 86 MW solar - 70 MW / 280 MWh lithium-ion (short duration) - 10 MW / 100 MWh Eos Z3, 10 hours of zinc-based long-duration storage - Built on a reclaimed coal mine - Google buys the energy, capacity, and clean attributes - Phased COD: solar 2028 → Li-ion 2029 → Eos LDES 2030 - ~$350M capital investment Why it matters: > Google attaching its name to Z3 in front of its own load is the validation that matters. Other offtakers and lenders can now point to a live hyperscaler project instead of a slide deck. > It is also the first draw under the MN8–Eos master supply agreement, which covers up to 750 MWh. One hundred MWh is small on its own, but it turns that MSA into a real deployment. > The product is the hybrid stack. Lithium covers the short, high-power window; Z3 stretches solar into the evening and overnight, which is the 24/7 profile data centers and PJM capacity markets actually need. Eos is no longer “instead of lithium.” It is the piece that makes the portfolio dispatchable for more hours. > Doing that on the tightest major U.S. grid, in the middle of the AI interconnection fight, gives MN8 and other developers a template they can copy. Pennsylvania manufacturing and Google citing zinc/bromine supply-chain resilience turn the chemistry into a procurement story, not just a tech one. The caveats are still real. 100 MWh is modest next to Eos’s ambitions, COD is 2030, and factory output, field performance, and cost still have to be proven. The strategic value for $EOSE is the customer and the use case. Google + MN8 + PJM + 10-hour zinc on a coal site is how Z3 stops looking like a demo and starts looking like infrastructure.