UK Renewable Heating Progress: Target vs Reality

The UK government has set ambitious targets for decarbonising home heating: 600,000 heat pump installations per year by 2028, a phase-down of new gas boilers from 2035, and net zero by 2050. But how is the UK actually performing against these targets? This regularly updated dashboard tracks the key metrics — installation numbers, grant uptake, installer capacity, and overall renewable heating share — to show where progress is strong and where gaps remain.

The Key Metrics Dashboard

Installation Numbers: Target vs Reality

Sources: MCS statistics, DESNZ BUS data. 2025 figures estimated, 2026 projected based on current trends.

The growth rate is positive (25-35% year-on-year), but the gap between actual and target installations is widening rather than narrowing. To reach 600,000 by 2028 would require approximately 700% growth from current levels in just two years — extremely unlikely without dramatic policy intervention.

The Climate Change Committee has identified this gap as a critical risk to the UK's net zero pathway. Their recommendations include energy price rebalancing, expanded grants, and accelerated installer training — the same measures our Scandinavia comparison identifies as necessary.

BUS Grant Uptake

Source: DESNZ Boiler Upgrade Scheme statistics.

BUS grant uptake has increased dramatically — more than tripling from 2023 to 2025. The increase to £7,500 and growing consumer awareness are driving growth. However, BUS-funded installations still represent a small fraction of the 1.6 million gas boilers replaced annually. Converting more of these boiler replacements into heat pump installations is the key to scaling.

Installer Capacity: The Bottleneck

The installer shortage is the single biggest practical constraint on scaling. Training programmes are expanding through the Heat Training Grant, manufacturer courses (from Mitsubishi, Vaillant, and others), and college/university programmes. But at current training rates, the gap will not close until the early 2030s.

Renewable Heating Share

Approximately 5-6% of UK domestic heating currently comes from renewable sources — predominantly heat pumps, with small contributions from biomass and solar thermal. The government targets over 50% renewable heating by 2035. This requires heat pump installations to grow from approximately 250,000 cumulative to several million.

International Comparison

The UK's renewable heating progress compares poorly with European peers, as our Scandinavia comparison details. However, the UK's growth rate is among the fastest — suggesting that catch-up is possible if policy support remains strong and consistent.

Outlook: What Needs to Happen

To close the gap between current progress and targets, the UK needs:

1. Energy price rebalancing — making heat pumps clearly cheaper to run than gas
2. Sustained BUS grant — maintaining £7,500+ through at least 2030
3. Installer training at scale — quintupling training output from 800 to 5,000 per year
4. Consumer confidence — consistent messaging and positive media coverage
5. Policy certainty — unwavering commitment to the 2035 gas boiler phase-down

The technology works. The economics are increasingly favourable. The environmental imperative is undeniable. The question is purely one of policy ambition and execution. For individual homeowners, the case for acting now — while grants are available and installers have capacity — is strong. Every installation helps close the gap.

Frequently Asked Questions

Is the UK on track?

No. At ~75,000/year against a 600,000/year target for 2028, the UK is at approximately 12.5% of target. Growth is strong but insufficient without policy acceleration.

How many UK heat pumps are installed?

Approximately 250,000 cumulative, with ~75,000 installed annually. Growing at 25-35% per year.

How many BUS grants have been approved?

Over 40,000 in 2025, up from 12,000 in 2023. Uptake is accelerating but still a small fraction of annual boiler replacements.

Are there enough installers?

Not yet. ~3,500 versus ~25,000 needed. The installer gap is the biggest practical constraint on scaling.

What percentage of heating is renewable?

Approximately 5-6%. The target is 50%+ by 2035, requiring several million heat pump installations.

How does the UK compare internationally?

The UK lags France (5M+), Italy (3.5M+), and Scandinavia (3M+). But UK growth rates are among the fastest, suggesting catch-up is possible with sustained policy.