Solar Panels in the NP4 Postcode Area
The NP4 postcode area covers Blaenavon and surrounding areas in Torfaen. A typical 4kWp solar panel system here generates around 3,420 kWh per year, saving an estimated £958/yr on electricity bills and covering roughly 90% of average household electricity usage.
Solar Performance in NP4
About Solar in NP4, Blaenavon
Homeowners in the NP4 postcode area are eligible for 0% VAT on solar panel installations, making 2026 an excellent time to invest in solar energy. With 855 kWh generated per kWp of installed capacity, the NP4 area benefits from near-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 Torfaen qualify for SEG payments from energy suppliers.
Torfaen in Wales generates 870 kWh per kWp, about 5% below the UK average of 920 kWh/kWp. Centred on the new town of Cwmbran in the eastern South Wales Valleys, Torfaen benefits from its position closer to the Severn Estuary which brings slightly drier conditions than the valleys to the west.