Solar Panels in the LL57 Postcode Area
The LL57 postcode area covers Bangor and surrounding areas in Gwynedd. A typical 4kWp solar panel system here generates around 3,448 kWh per year, saving an estimated £965/yr on electricity bills and covering roughly 91% of average household electricity usage.
Solar Performance in LL57
About Solar in LL57, Bangor
Homeowners in the LL57 postcode area are eligible for 0% VAT on solar panel installations, making 2026 an excellent time to invest in solar energy. With 862 kWh generated per kWp of installed capacity, the LL57 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 Gwynedd qualify for SEG payments from energy suppliers.
Gwynedd in Wales generates 860 kWh per kWp, about 7% below the UK average of 920 kWh/kWp. Home to Snowdon and the Llyn Peninsula, Gwynedd has high rainfall in the mountains but coastal areas around Caernarfon and Pwllheli enjoy notably better conditions, with the Llyn Peninsula receiving over 1,500 sunshine hours.