Electrolyser Manufacturing Capacity
Installed and announced factory capacity — the supply side of the electrolyser market.
Announced manufacturing capacity dwarfs today's installed base by an order of magnitude — a structural over-supply is being priced in.
Alkaline remains the volume workhorse. Solid-oxide capacity is small in GW/y but strategically vital for high-temperature integration with industrial heat.
Utilisation risk is the story of 2025–2027: factories will produce below capacity unless project demand converts on schedule.
OEMs with realistic ramp plans and diversified backlogs will out-earn those chasing peak announced capacity.
| Year | Technology | Status | GW/y |
|---|---|---|---|
| 2024 | Alkaline | Installed | 5.13 |
| 2024 | Proton Exchange Membrane | Installed | 1.81 |
| 2024 | Solid Oxide | Installed | 0.12 |
| 2024 | Anion Exchange Membrane | Installed | 0.01 |
| 2024 | Alkaline | Under construction | 5.71 |
| 2024 | Proton Exchange Membrane | Under construction | 0.28 |
| 2024 | Solid Oxide | Under construction | 2.07 |
| 2024 | Anion Exchange Membrane | Under construction | 0.44 |
Installed vs announced GW/y factory capacity by technology.
Data © original publishers (EHO, IEA). Original analysis, verification, and column engineering © ReneEnergy. The original publishers have not reviewed or endorsed this dataset.