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    Eos Energy (EOSE) Is Up 19.0% After Google-Backed Long-Duration Storage Deal - Has The Bull Case Changed?

    Simply Wall St·09/06/2026 15:23:04
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    • In late August and early September 2026, MN8 Energy announced a collaboration with Eos Energy Enterprises and Google to supply the PJM grid with an integrated project in West Virginia combining 86 MW of solar, 10 MW/100 MWh of Eos Z3 long-duration storage, and 70 MW/280 MWh of lithium-ion storage, alongside Eos’s manufacturing consolidation plans, new commercial leadership, a WATTMORE software partnership, and a US$184.34 million shelf registration filing.
    • This collaboration marks Google’s first use of Eos’s American-made Z3 technology and the first commercial-scale long-duration storage deployment in West Virginia, tying Eos’s grid-scale projects directly to hyperscale data center demand and domestic supply chains.
    • We’ll now explore how this Google-backed long-duration storage project might reshape Eos Energy Enterprises’ investment narrative and risk-reward balance.

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    Eos Energy Enterprises Investment Narrative Recap

    To own Eos Energy Enterprises, you need to believe its zinc based long duration batteries can become a meaningful part of grid and data center infrastructure, and that the company can fund and execute that scale up despite ongoing losses and dilution risk. The Google backed PJM project strengthens the long duration storage narrative, but it does not remove the near term overhang around cash burn, equity issuance, and execution at the Thorn Hill manufacturing facility.

    Among the recent announcements, the US$184.34 million shelf registration stands out next to the Google project. It highlights how dependent Eos still is on external capital at a time when investors are watching cash runway and dilution closely. That funding overhang sits right beside the potential upside from large, long dated projects like Mammoth Solar, making capital structure and execution just as central to the catalyst story as new contracts.

    Yet alongside these headlines, investors should be aware that the biggest concern remains whether Eos can reduce costs at Thorn Hill before...

    Read the full narrative on Eos Energy Enterprises (it's free!)

    Eos Energy Enterprises' narrative projects $1.2 billion revenue and $125.5 million earnings by 2029.

    Uncover how Eos Energy Enterprises' forecasts yield a $6.67 fair value, a 72% upside to its current price.

    Exploring Other Perspectives

    EOSE 1-Year Stock Price Chart
    EOSE 1-Year Stock Price Chart

    Before this Google project, the most optimistic analysts were penciling in revenue of about US$1.7 billion and earnings near US$462 million by 2029, which is a far more aggressive trajectory than the baseline view that focuses on today’s losses and dilution risk; this new data center linked deal could either support that bullish scaling thesis or prompt a rethink of how realistic those targets really are.

    Explore 5 other fair value estimates on Eos Energy Enterprises - why the stock might be worth over 5x more than the current price!

    The Verdict Is Yours

    Disagree with existing narratives? Extraordinary investment returns rarely come from following the herd, so go with your instincts.

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    This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.