Electrolyzers release substantial low-grade heat (typically 50–70°C). Air-to-air exchangers recover purge-air and cooling-loop energy, while the waste heat can be lifted into district or process use. This hub collects CNCSP notes on electrolyzer thermal profiles and recovery design.
Electrolyzer plant recovery
- Electrolyzer plant air-to-air heat recovery
Cooling loops and purge-air energy reuse at green-H2 facilities. - Electrolyzer cooling waste-heat reuse
Capturing 50–70°C waste heat for district or process integration. - PEM vs alkaline thermal profiles
What different thermal signatures mean for recovery design.
Market outlook
- 2026 China green-H2 + CCUS demand
Heat-exchanger demand outlook for the China green-H2 and CCUS build-out.
Related resources
{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What temperature is electrolyzer waste heat?","acceptedAnswer":{"@type":"Answer","text":"Usually 50–70°C from cooling loops — low-grade, but ideal for district heating, absorption chilling or adjacent process pre-heat."}},{"@type":"Question","name":"Does PEM or alkaline recover better?","acceptedAnswer":{"@type":"Answer","text":"Both shed heat; PEM runs cooler and denser while alkaline runs hotter. Recovery design follows the actual cooling-loop profile, not the cell type alone."}}]}