Shares of Eos Energy Enterprises surged 10.5% to MXN 65.50 after Google and developer MN8 Energy chose the company's American-made zinc battery system for a major West Virginia clean-energy project. The deal puts a marquee tech name behind a small manufacturer still burning cash — raising the question of whether validation translates into sustainable profits.
• A Big Tech Endorsement, but a Modest Order
Google, MN8 Energy, and Eos announced a collaboration on September 2 to deliver clean, around-the-clock energy to the PJM grid serving Google data centers. This is Google's first project using Eos's zinc-based storage technology and the first order under MN8 and Eos's previously announced 750 MWh master supply agreement. Yet Eos's piece — 100 MWh of 10-hour zinc storage — is a fraction of the broader project, which MN8 estimates represents up to $350 million in total capital investment. The signal matters more than the size: Google's willingness to back zinc storage alongside conventional lithium-ion gives Eos credibility with other potential buyers.
• Revenue Won't Arrive for Years
The solar portion is expected online in 2028, lithium-ion storage in 2029, and Eos's long-duration system not until 2030. That timeline means this deal adds to Eos's backlog but won't meaningfully contribute to near-term revenue. The company recently tightened 2026 revenue guidance to $300–$350 million, down from a prior $300–$400 million range , citing delays from consolidating manufacturing into a single plant.
• Strong Backlog, Ugly Margins
As of June 30, Eos reported a record backlog of $807 million (3.4 GWh), up 25% sequentially, against a $24.6 billion opportunity pipeline. Demand is clearly not the problem. Profitability is: the company projected a gross margin loss of 69–73% in Q2, reflecting start-up costs as it ramps new production lines toward a 4 GWh annual capacity target by year-end. Total cash stood at roughly $364 million , providing runway but underscoring how much capital the ramp still consumes.
• The Real Test Is Execution, Not Demand
CEO Joe Mastrangelo has framed the opportunity clearly: "The market wants a U.S. supplier of long-duration energy storage that can deliver at scale." The focus is "converting that demand into profitable growth." Google's endorsement strengthens the demand story, but investors should watch manufacturing yields and margin improvement — not headline deals — for proof that Eos can turn orders into earnings.