Solar Panels in the NP18 Postcode Area
The NP18 postcode area covers Caerleon and surrounding areas in Newport. A typical 4kWp solar panel system here generates around 3,532 kWh per year, saving an estimated £989/yr on electricity bills and covering roughly 93% of average household electricity usage.
Solar Performance in NP18
About Solar in NP18, Caerleon
Homeowners in the NP18 postcode area are eligible for 0% VAT on solar panel installations, making 2026 an excellent time to invest in solar energy. With 883 kWh generated per kWp of installed capacity, the NP18 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 Newport qualify for SEG payments from energy suppliers.
Newport in Wales generates 885 kWh per kWp, about 4% below the UK average of 920 kWh/kWp. Sitting on the Severn Estuary at the gateway to South Wales, Newport benefits from a milder, sunnier position than the inland valleys and has seen steady solar growth across its mix of residential and commercial properties.