County energy-performance profile
Somerset EPC ratings and energy costs
Understand how homes in Somerset score, what certificate-estimated energy costs look like and how much improvement the recorded recommendations suggest.
Average EPC
D 66
2.5 points below analysed national average
Rated C or above
50.8%
of analysed certificates
Potential uplift
+18
average score points
Properties represented
53K
from 54K certificates
At a glance
What the data says about Somerset
50.8%
rated A–C
19.1%
rated E–G
£932
certificate-estimated annual cost
Cost figures are averages of estimates recorded on EPCs at different dates. They are useful for comparing areas, but they are not a forecast of a current household bill.
Average EPC score in Somerset
EPC band distribution in Somerset
Certificate-estimated energy costs
| Cost Type | Somerset | National Avg | Difference |
|---|---|---|---|
| Heating | £689/yr | £782/yr | ▼ £93 |
| Hot water | £155/yr | £184/yr | ▼ £29 |
| Lighting | £88/yr | £95/yr | ▼ £7 |
| Total | £932/yr | £1,061/yr | ▼ £129 |
These values come from certificate assessments and reflect standardised occupancy assumptions and energy prices used when each EPC was produced. They are not live tariffs.
Property types in the dataset
Main heating fuel
Carbon emissions and improvement potential
3.8 t
current annual CO₂ estimate
1.7 t
potential annual estimate
93 m²
average floor area
When the represented homes were built
Average EPC score over time
- 2020
- 64
- 2021
- 66
- 2022
- 67
- 2023
- 68
- 2024
- 82