Solar Panels in the RG21 Postcode Area
The RG21 postcode area covers Basingstoke and surrounding areas in Hampshire. 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 RG21
About Solar in RG21, Basingstoke
Homeowners in the RG21 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 RG21 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 Hampshire qualify for SEG payments from energy suppliers.
Hampshire in the South East generates 990 kWh per kWp, about 8% above the UK average of 920 kWh/kWp. From the South Downs to the Solent coast, Hampshire benefits from excellent sunshine and its sheltered position, making it one of England's best regions for solar with the historic city of Winchester at its heart.