Solar Panels in the AL1 Postcode Area
The AL1 postcode area covers St Albans and surrounding areas in Hertfordshire. A typical 4kWp solar panel system here generates around 3,792 kWh per year, saving an estimated £1,062/yr on electricity bills and covering roughly 100% of average household electricity usage.
Solar Performance in AL1
About Solar in AL1, St Albans
Homeowners in the AL1 postcode area are eligible for 0% VAT on solar panel installations, making 2026 an excellent time to invest in solar energy. With 948 kWh generated per kWp of installed capacity, the AL1 area benefits from above-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 Hertfordshire qualify for SEG payments from energy suppliers.
Hertfordshire in the East of England generates 950 kWh per kWp, about 3% above the UK average of 920 kWh/kWp. Just north of London, Hertfordshire combines commuter towns with green countryside, and its position in the drier east of England with low rainfall and good sunshine makes it well suited for solar panels.