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Solar panels in Neath Port Talbot

Houses in Neath Port Talbot average 88.1 square metres, which is what these figures are based on.

What the numbers look like

Estimated annual savings for house in Neath Port Talbot, based on 1,089 energy certificates lodged in April–June 2026.
ImprovementTypical savingGrant
Loft insulation£26 a year—
Solid wall insulation£140 a year—
Solar panels£120 a year—
Air source heat pump£110 a year£7,500
Cavity wall insulation£99 a year—

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.

Get figures for your own home