306 UK towns and cities indexed — England, Scotland, Wales, Northern Ireland
Open data · CC BY 4.0 · Q2 2026 · Free for academic, journalistic, policy use
UK Heat Pump Open Data 2026
Our quarterly UK heat pump installer-quote dataset, anonymised with homeowner consent, free for academic, journalistic, and policy use under Creative Commons Attribution 4.0. Updated each quarter; cite as "ASHPCost (2026)".
MCS-Reviewed
By a heat-engineer
Ofgem-Aligned
BUS scheme rules
420+ Quotes
Real installer data
306 UK Towns
England · Scotland · Wales · NI
Updated Apr 2026
Quarterly refresh
Q2 2026 release at a glance
- 📊 Sample size: 480+ unique installer quotes
- 🇬🇧 Coverage: 28 UK cities across England, Scotland, Wales, Northern Ireland
- 📅 Collection period: 1 January – 30 April 2026
- 📏 Variables: Cost ranges, gas usage, savings vs gas/oil, SCOP, installer density
- 📜 License: CC BY 4.0 (attribution required, commercial use permitted)
- 📥 Format: CSV, UTF-8, 28 rows × 16 columns
Download
⬇ Download CSV (Q2 2026)File: uk-heat-pump-costs-q2-2026.csv · ~5 KB · CC BY 4.0 license
Citation
Variables in the dataset
| Column | Type | Description |
|---|---|---|
| city | string | UK city name |
| region | string | Sub-national region (e.g. West Midlands) |
| country | string | England | Scotland | Wales | Northern Ireland |
| avg_cost_before_grant_low/high | integer (£) | Installed-cost range before grant |
| grant_scheme | string | BUS | HES | NI-SEP |
| grant_amount_typical | integer (£) | Typical grant/cashback per qualifying install |
| after_grant_net_low/high | integer (£) | Out-of-pocket cost after grant |
| annual_gas_kwh | integer (kWh) | Average annual gas consumption per 3-bed home |
| annual_saving_vs_gas | integer (£) | Estimated annual saving switching from gas |
| annual_saving_vs_oil | integer (£) | Estimated annual saving switching from oil |
| scop_typical | decimal | Typical Seasonal Coefficient of Performance |
| mcs_installer_count_25mi | integer | MCS-certified installers within 25 miles |
| sample_size_q2_2026 | integer | Quotes contributing to this row's estimate |
| note | string | Local notes (planning, climate, building stock) |
Methodology, limitations, and contact
Full methodology — including how quotes are anonymised, how sample weights are applied, and how regional adjustments are calculated — is documented on our methodology page. For research collaborations, additional data cuts, or interview requests, contact [email protected].
Quarterly updates
Q3 2026 release scheduled for August 2026. Q4 2026 for November 2026. Each release republishes the CSV with updated quote-count, updated regional cost ranges, and updated methodology notes reflecting any UK scheme changes.
Data sourced from · independently cross-checked
Our cost figures, grant rules and installer data trace to these UK authorities
We don't invent numbers. Every cost range, payback figure and grant rule on ASHPCost is sourced from one of the bodies below and listed in our methodology page.
- 750-home UK heat pump trial 2024
- BUS scheme + tariff data
- Installer accreditation register
- Authoritative scheme rules
- Boiler-side comparison reviewer
- Domestic energy expenditure data
ASHPCost is an independent editorial site and has no commercial partnership with any of the organisations listed.