Hydrogen vs Heat Pump for Industrial Heat
For low- and medium-temperature process heat (up to ~150–200°C), an industrial heat pump is far more efficient and cheaper to run than burning hydrogen: it delivers 2–4 units of heat per unit of electricity, while green hydrogen wastes most of its input energy in electrolysis. Hydrogen only makes sense where temperatures are too high for heat pumps or a flame is required.
When a plant electrifies heat, the instinct is sometimes 'switch the boiler to hydrogen'. But for most heat below ~200°C a heat pump uses a fraction of the energy. Hydrogen earns its place only at high temperatures or where combustion chemistry is needed.
Hydrogen vs Industrial heat pump — at a glance
| Dimension | Hydrogen | Industrial heat pump |
|---|---|---|
| Efficiency (electricity → heat) | ~25–40% (via electrolysis + burn) | 200–400% (COP 2–4) |
| Best temperature range | High temp / flame needed | Up to ~150–200°C |
| Running cost | High (expensive H₂) | Low (uses less power) |
| Capex | Burner + supply/storage | Heat-pump unit + integration |
| Carbon | Depends on H₂ colour | Near-zero on clean grid |
When to choose Hydrogen
Choose hydrogen where process temperatures exceed what heat pumps reach, where an open flame or specific combustion chemistry is required (e.g. some furnaces, kilns), or as feedstock rather than fuel.
When to choose Industrial heat pump
Choose a heat pump for hot water, space heating, drying, washing and most sub-200°C process heat. The 2–4× efficiency advantage usually makes it the lowest-cost, lowest-carbon option by a wide margin.
Verdict
For the bulk of industrial heat below ~200°C, heat pumps beat hydrogen decisively on energy and cost. Reserve hydrogen for genuinely high-temperature or feedstock uses. And before either: insulate hot surfaces and recover waste heat — the cheapest kilowatt-hour is the one you don't lose.
FAQ
Is it cheaper to heat with hydrogen or a heat pump?
A heat pump, for most process heat. It delivers 2–4 units of heat per unit of electricity, while green hydrogen loses most of its input energy in electrolysis and is expensive to buy.
What temperature can industrial heat pumps reach?
Commercial industrial heat pumps now reach roughly 150–200°C, covering drying, evaporation, pasteurisation and hot water. Above that, other options including hydrogen come into play.
Related
Factory Decarbonization: A Practical Roadmap · The EU ETS Explained for Industrial Operators · Net Zero · Industrial Decarbonization · Carbon Intensity
Sectors: Steel & Metals · Chemicals · Cement