UK Emissions Fell 1.8% in 2025 but Heat Pump Slowdown Flags Electrification Gap
Britain's Climate Change Committee found 2025 emissions on track for carbon budgets, while flagging a sharp deceleration in home heat pump deployment as a risk to future progress.
Britain's overall greenhouse gas emissions fell 1.8% in 2025, according to the Climate Change Committee's latest annual assessment, putting the country on track to meet its fourth and fifth carbon budgets. The same report identified a sharp stall in home electrification that points to elevated energy bills ahead.2
Heat pump installations in existing homes rose just 7% last year, against 56% growth the year before. The CCC flagged that deceleration as a material risk to the country's decarbonisation path.2
For the households whose costs are meant to come down as gas boilers give way to electric systems, the gap is concrete. Gas boilers heat the vast majority of the country's homes, leaving occupants exposed to commodity-priced gas. ICE Endex TTF front-month gas traded at €41.67 per megawatt hour on Wednesday (2026-06-24). A slower conversion to heat pumps means that exposure compounds over coming winters rather than diminishing.2
The CCC report also recorded a record volume of new renewable energy contracted through the latest auction round, and peatland restoration up 26% year-on-year. Those data points track supply-side and land-use progress. The demand-side picture — anchored in how fast homes and transport electrify — is where the committee found the most friction.2
One complication embedded in the UK's current energy policy is the treatment of biomass. The 2.6 GW Drax power station, the UK's largest single emitter, received record subsidies of GBP 1 billion in the year, equivalent to GBP 13 per household, according to think tank Ember as reported by Montel. Subsidies rose 15% in 2025 compared with 2024.1
Drax qualifies for public support because emissions from burning woody biomass are zero-rated under current UK carbon accounting. Ember's position is that this creates a direct anomaly: the country's largest emitting plant receives subsidy flows at a scale that competes with investment in technologies producing fewer actual emissions.1
The 2025 reduction was largely driven by continued retreat from coal in electricity generation and by reduced gas demand linked to high prices in prior years. Neither mechanism required household-level investment decisions. Heat pump adoption does, and it has now slowed sharply.2
Government policy on boiler replacement has been repeatedly diluted in response to lobbying from housebuilders and the heating industry. The CCC report does not specify whether the 7% growth in heat pump installations reflects policy dilution, consumer financing constraints, or installer workforce shortages — though the contrast with the prior year suggests the market has not yet reached saturation.2
Meeting the fourth carbon budget, which covers roughly the next decade, depends on accelerating building decarbonisation. The current trajectory does not yet show that acceleration.2
UK Carbon (UKA) traded at $54.98 per tonne on Wednesday (2026-06-24). For those watching the UK carbon and power markets, the near-term catalyst is likely an autumn policy decision on heat pump incentives. A credible acceleration programme would, over a multi-year horizon, reduce residential gas demand and dampen the incremental UK Carbon demand tied to gas-fired backup generation. Previous versions of such a programme have been announced and then diluted. Until the 7% installation growth rate reverses, the structural signal from the CCC's report runs against the supply-side optimism embedded in the auction results.2