Solar Panels in the SP1 Postcode Area
The SP1 postcode area covers Salisbury and surrounding areas in Wiltshire. A typical 4kWp solar panel system here generates around 3,940 kWh per year, saving an estimated £1,103/yr on electricity bills and covering roughly 104% of average household electricity usage.
Solar Performance in SP1
About Solar in SP1, Salisbury
Homeowners in the SP1 postcode area are eligible for 0% VAT on solar panel installations, making 2026 an excellent time to invest in solar energy. With 985 kWh generated per kWp of installed capacity, the SP1 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 Wiltshire qualify for SEG payments from energy suppliers.
Wiltshire in the South West generates 980 kWh per kWp, about 7% above the UK average of 920 kWh/kWp. Home to Stonehenge and Salisbury Plain, Wiltshire enjoys excellent sunshine hours and low rainfall across its chalk downland landscape, making it one of the strongest inland regions for solar energy in the UK.