Context
Heating electrification is now the central technical question in UK commercial decarbonisation. The coefficient of performance of a commercial heat pump is roughly constant. The cost of electricity versus gas is not. The financial case for electrification therefore depends on the spark gap — and on where the forward curves are heading over the hold period.
Why it matters
Get the electrification business case wrong and a fund can lock in operating cost exposure for the next 15–20 years. Get it right and the same asset moves towards MEES alignment, CRREM pathway alignment and NZCBS readiness in a single capex cycle. Few other interventions in the commercial building stack carry that much leverage.
Commercial implications
- UK commercial electricity remains roughly 3.5–4.5x the unit cost of commercial gas, before policy costs.
- A heat pump COP of 3.0 is therefore close to operating-cost parity with a condensing gas boiler — before carbon pricing.
- Electricity policy costs are being rebalanced; spark gap compression is expected by the late 2020s.
- UK ETS expansion is bringing more sectors into carbon pricing, raising the effective cost of gas at the margin.
- DNO capacity confirmations are increasingly the binding constraint on heat pump retrofit programmes.
- Carbon factors used in SECR, GHG Protocol and CRREM all favour electrified heat as the grid continues to decarbonise.
Recommended actions
- Model the operating cost of any electrification project against a range of spark-gap scenarios, not a single forward curve.
- Run carbon performance under DEFRA / DESNZ factor forecasts — the grid intensity trajectory is part of the business case.
- Confirm DNO capacity and any grid reinforcement costs early; they can dominate the project budget on older sites.
- Stress-test the case against UK ETS expansion and carbon price scenarios for the gas leg.
- Align the electrification programme with the MEES, CRREM and NZCBS narrative for the asset — do not run them as separate projects.
NZC view
Forward curves are the business case. Equipment selection is the easy part. Funds that model the spark gap honestly — and the carbon trajectory honestly — are reaching investment decisions faster, with lower regret risk, than funds running an unconditioned NPV.
Related services
Related articles
- UK ETS carbon price 2025–2026 — what it means for decarbonisation
- DEFRA 2025 factors and dual Scope 2 SECR reporting
- GHG Protocol Scope 2 — location-based and market-based
Energy price and policy commentary reflects NZC Consultants' interpretation of public UK market and regulatory information at the time of publication.