Solar Panels in the BN7 Postcode Area
The BN7 postcode area covers Lewes and surrounding areas in East Sussex. A typical 4kWp solar panel system here generates around 4,100 kWh per year, saving an estimated £1,148/yr on electricity bills and covering roughly 108% of average household electricity usage.
Solar Performance in BN7
About Solar in BN7, Lewes
Homeowners in the BN7 postcode area are eligible for 0% VAT on solar panel installations, making 2026 an excellent time to invest in solar energy. With 1,025 kWh generated per kWp of installed capacity, the BN7 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 East Sussex qualify for SEG payments from energy suppliers.
East Sussex in the South East generates 1,030 kWh per kWp, about 12% above the UK average of 920 kWh/kWp. Home to Brighton and the South Downs, East Sussex benefits from its south-facing coastal aspect and is one of the UK's sunniest regions, with Eastbourne regularly recording the highest sunshine hours in the country.