Solar panels in Sevenoaks
Houses in Sevenoaks average 136.2 square metres, which is what these figures are based on.
What the numbers look like
| Improvement | Typical saving | Grant |
|---|---|---|
| Loft insulation | £49 a year | — |
| Solid wall insulation | £270 a year | — |
| Solar panels | £220 a year | — |
| Cavity wall insulation | £180 a year | — |
| Air source heat pump | £110 a year | £7,500 |
These are averages, not your home
Everything above describes a typical property of this kind, using published energy certificate statistics. Your own figures will differ — often substantially, since floor area alone varies by a factor of three between areas.
We cannot price most of this work: there is no published cost dataset we can stand behind for insulation or heat pumps, so the savings above come with no payback. How we work these out.