Hydrogen Fuel Cells

Fuel Cell Chemistries

SOFC is on-site generation from natural gas. PEM needs hydrogen. Mixing the two into one multiple is the usual mistake.
ChemistryTempFuel todayJobRoster namesThe catch
SOFC~700-1000 CNatural gas (H2 capable)On-site prime power, 24/7Bloom, Ceres (IP)Slow start. Gas feedstock. Wins when the grid is late, not when H2 is cheap.
PEM~60-80 CPure hydrogenForklifts, buses, trucks, backupPlug, BallardNeeds a hydrogen network. Material handling is the only PEM use that already prints.
MCFC~600-700 CNatural gas / biogasIndustrial CHP, carbon capture pilotsFuelCell EnergyHas not scaled. Distressed equity. Not a data-center product.
SOEC (reverse SOFC)~700-800 CElectricity + steamHigh-efficiency electrolysisBloom (electrolyzer line)Same ceramics as SOFC. Offtake is the 37-vs-4.2 Mtpa problem, not the stack.

Bloom Energy Annual Revenue

The one fuel-cell P&L that inflected. 2026e is the midpoint of the raised $3.9B-$4.2B guide, not a print.

On-Site Fuel Cell Offtake

Megawatts of generation, not kilograms of hydrogen. AEP at 1 GW is the sized number. Hyperscaler qualification is Bloom's claim, not a disclosed MW total.
DealMWStatusWhat it is
AEP (2024 purchase)100Contracted 2024First firm block. Ohio and Texas called out as early sites in 2026 reporting.
AEP option conversion900Exercised Jan 2026Turns the 2024 option into 1 GW total. Reported as a $2.65B, 20-year offtake. AEP is the customer; it stays on Utilities.
AEP total framework1,000LiveLargest disclosed utility SOFC book. This is why Bloom is a generation name, not a hydrogen name.
US hyperscalers + neocloudsNot disclosed as a totalQualified (Bloom Q2 2026)Bloom said all major US hyperscalers and more than a dozen neoclouds, AI labs, and colo operators have validated the product. No MW roll-up in the PR.
C&I (semiconductor, hospitals, retail)Not disclosed as a totalOngoingThe pre-AI book. Still in the mix; FY2025 growth was 'significant' from AI data centers plus continued C&I.
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Hydrogen Fuel Cells: Market Data | Sterling