Solar panel yield in St Helens

Each kWp of solar panels in St Helens, at the best angle of 40°, produces about 924 kWh of electricity a year – worth £312 at today's household electricity price.

Yield per kWp
924 kWh
per year
Value per kWp
£312
if used at home, at today's tariff
Versus the United Kingdom average
−8%
1,002 kWh
Solar rank in the United Kingdom
932 of 1,133

Monthly yield of 1 kWp

JanFebMarAprMayJunJulAugSeptOctNovDec
Long-term average monthly production (PVGIS), panels facing south at the optimal angle, 14 % system losses.
Show the data as a table
MonthkWh
Jan30
Feb49
Mar81
Apr108
May118
Jun113
Jul111
Aug101
Sept85
Oct59
Nov39
Dec30

A typical 5 kWp home system

A 5 kWp system in St Helens would produce about 4,618 kWh a year – 185% of the 2,500 kWh our default home uses.

Payback

How fast a system pays for itself depends on its price, how much of the power you use yourself and the feed-in tariff. Try your own numbers: Solar payback calculator →

Cost of running a home in St Helens →

Source: PVGIS © European Union, 2001–2026.

Updated: