Solar Panels in the CF45 Postcode Area
The CF45 postcode area covers Mountain Ash and surrounding areas in Rhondda Cynon Taf. A typical 4kWp solar panel system here generates around 3,428 kWh per year, saving an estimated £960/yr on electricity bills and covering roughly 90% of average household electricity usage.
Solar Performance in CF45
About Solar in CF45, Mountain Ash
Homeowners in the CF45 postcode area are eligible for 0% VAT on solar panel installations, making 2026 an excellent time to invest in solar energy. With 857 kWh generated per kWp of installed capacity, the CF45 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 Rhondda Cynon Taf qualify for SEG payments from energy suppliers.
Rhondda Cynon Taf in Wales generates 860 kWh per kWp, about 7% below the UK average of 920 kWh/kWp. In the heart of the South Wales Valleys, this former coal mining area has high rainfall at the valley heads but the lower valleys near Pontypridd enjoy better conditions, and community energy schemes are driving solar adoption.