Plug Power and FuelCell Energy: The Other ChemistriesThin moat

Bloom is not the only fuel-cell company selling into the data-centre power problem, though the competitors occupy adjacent rather than identical positions. Plug Power's PEM technology is being positioned largely as a replacement for diesel backup generators — in February 2026 it sold a hydrogen site to a data-centre developer for $132.5 million — while Bloom's solid-oxide technology targets larger-scale prime power. FuelCell Energy has moved directly at Bloom's ground with a packaged 12.5 MW utility-grade power block aimed at data centres¹.

The category is growing fast enough for several participants: fuel-cell revenues from data centres are forecast to rise roughly tenfold, from about $2.8 billion in 2025 toward $30 billion by 2030². In a market expanding at that rate, competitors do not have to take Bloom's customers to hurt it — they only have to add capacity faster than demand grows, which is how every equipment cycle eventually turns.

Bloom's advantages are real and specific: a large installed base, a working service annuity, and manufacturing already at scale while rivals are announcing expansions. Those are execution advantages rather than technological ones.

Watch pricing rather than orders. In a growing market everyone's revenue rises; the signal that competition has arrived is Bloom's gross margin, which is where a crowded field shows up first.