Solar Panels in the PL25 Postcode Area
The PL25 postcode area covers St Austell and surrounding areas in Cornwall. A typical 4kWp solar panel system here generates around 4,312 kWh per year, saving an estimated £1,207/yr on electricity bills and covering roughly 113% of average household electricity usage.
Solar Performance in PL25
About Solar in PL25, St Austell
Homeowners in the PL25 postcode area are eligible for 0% VAT on solar panel installations, making 2026 an excellent time to invest in solar energy. With 1,078 kWh generated per kWp of installed capacity, the PL25 area benefits from above-average solar irradiance for the UK.
Through the Smart Export Guarantee (SEG), you can also earn money by exporting surplus electricity back to the grid. Most MCS-certified installations in Cornwall qualify for SEG payments from energy suppliers.
Cornwall in the South West generates 1,080 kWh per kWp, a remarkable 17% above the UK average of 920 kWh/kWp. England's most southwesterly region enjoys the mildest climate in the UK, with nearly 1,900 sunshine hours annually and the highest solar adoption rate per capita in the country.