Solar Panels in the TW18 Postcode Area
The TW18 postcode area covers Staines and surrounding areas in Surrey. A typical 4kWp solar panel system here generates around 3,892 kWh per year, saving an estimated £1,090/yr on electricity bills and covering roughly 102% of average household electricity usage.
Solar Performance in TW18
About Solar in TW18, Staines
Homeowners in the TW18 postcode area are eligible for 0% VAT on solar panel installations, making 2026 an excellent time to invest in solar energy. With 973 kWh generated per kWp of installed capacity, the TW18 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 Surrey qualify for SEG payments from energy suppliers.
Surrey in the South East generates 975 kWh per kWp, about 6% above the UK average of 920 kWh/kWp. One of the UK's most affluent regions, Surrey's proximity to London combined with its excellent sunshine and the Surrey Hills countryside has driven very high solar adoption rates among homeowners.