Solar Panels in the PA4 Postcode Area
The PA4 postcode area covers Renfrew and surrounding areas in Renfrewshire. A typical 4kWp solar panel system here generates around 3,264 kWh per year, saving an estimated £914/yr on electricity bills and covering roughly 86% of average household electricity usage.
Solar Performance in PA4
About Solar in PA4, Renfrew
Homeowners in the PA4 postcode area are eligible for 0% VAT on solar panel installations, making 2026 an excellent time to invest in solar energy. With 816 kWh generated per kWp of installed capacity, the PA4 area benefits from reasonable 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 Renfrewshire qualify for SEG payments from energy suppliers.
Renfrewshire in Scotland generates 815 kWh per kWp, about 11% below the UK average of 920 kWh/kWp. West of Glasgow, Renfrewshire includes the town of Paisley and Glasgow Airport, and while west-central Scotland receives more rainfall than the east, the area's accessible suburban housing stock provides good potential for solar retrofits.