Solar Panels in the PO31 Postcode Area
The PO31 postcode area covers Cowes and surrounding areas in Isle of Wight. A typical 4kWp solar panel system here generates around 4,288 kWh per year, saving an estimated £1,201/yr on electricity bills and covering roughly 113% of average household electricity usage.
Solar Performance in PO31
About Solar in PO31, Cowes
Homeowners in the PO31 postcode area are eligible for 0% VAT on solar panel installations, making 2026 an excellent time to invest in solar energy. With 1,072 kWh generated per kWp of installed capacity, the PO31 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 Isle of Wight qualify for SEG payments from energy suppliers.
The Isle of Wight in the South East generates 1,070 kWh per kWp, an impressive 16% above the UK average of 920 kWh/kWp. England's largest island enjoys some of the UK's best sunshine, with Shanklin and Ventnor on the south coast regularly among the sunniest spots in Britain, making it exceptional for solar energy.