Solar Panels in Peterborough, Cambridgeshire

A 3-4kWp system in Peterborough typically costs £5,000-£8,000 with 0% VAT included — the zero-rate VAT alone saves around £1,000 compared to the standard 20% rate. Based on Peterborough's solar yield of 942 kWh/kWp, a 4kWp system generates approximately 3,768 kWh/year, paying for itself in 6-8 years through electricity savings of £1055+/yr and Smart Export Guarantee income of 4-6p/kWh. Adding a home battery (5-10 kWh) costs an additional £3,000-£6,000 and also benefits from 0% VAT. We recommend getting at least three quotes from MCS-certified installers to compare pricing and equipment.

Based on PVGIS satellite data for Peterborough's coordinates, a 4kWp system generates approximately 3,768 kWh per year at a yield of 942 kWh/kWp, covering 99% of average household use (3,800 kWh/year). The area receives around 1,520 sunshine hours annually. Cambridgeshire ranks #22 of 102 UK counties for solar yield — above the national average. Output peaks between May and August and is lower in winter, though annual generation figures already account for this seasonal variation. South-facing roofs at a 30-40° pitch achieve optimal yields, while east or west-facing roofs still produce 80-85% of maximum output.

South-facing roofs at a 30-40° pitch produce the most electricity (100% of potential yield). South-east and south-west roofs produce around 95% of optimal output. East or west-facing roofs still produce 80-85%, and many installers recommend splitting panels across east and west faces to spread generation throughout the day, which can improve self-consumption. North-facing roofs are generally not recommended for solar panels in the UK as they receive significantly less direct sunlight. Your MCS-certified installer will assess your roof orientation during the site survey.

Yes. Under the UK's Smart Export Guarantee (SEG), licensed suppliers with 150,000+ customers must offer a tariff for surplus electricity you export to the grid. Typical rates are 4-6p/kWh, with some suppliers offering up to 15p/kWh on time-of-use tariffs. You need a smart meter and an MCS-certified installation to be eligible — your supplier will install a smart meter for free if needed. A typical 4kWp system without battery storage exports around 50-70% of its generation, providing a meaningful income stream alongside electricity bill savings.

With a cost of £5,000-£8,000 (0% VAT included) and savings of £1055+ per year based on Peterborough's solar yield of 942 kWh/kWp at current electricity rates of 28p/kWh, plus Smart Export Guarantee income of 4-6p/kWh for surplus electricity, a typical solar system in Peterborough pays for itself in 6-8 years. Cambridgeshire ranks #22 of 102 UK counties for solar yield — above the national average. After payback, you benefit from 17-22 years of near-free electricity as panels last 25-30 years. Adding a battery extends self-consumption and can reduce payback further if you use most electricity in the evenings. Total lifetime savings typically reach £15,000-£25,000 depending on your usage pattern.

Standard grid-tied solar systems shut down automatically during a power cut for safety reasons — this is to protect engineers working on the grid lines. Your panels will resume generating as soon as the grid power is restored. If you need backup power during outages, you can install a hybrid inverter with battery storage that isolates your home from the grid and continues supplying electricity from the battery and panels. This emergency power supply (EPS) feature is available on most modern hybrid inverters and is worth considering if you experience frequent power interruptions.

Yes. East or west-facing roofs still produce 80-85% of the output of a south-facing roof, making them well worth installing. Many installers recommend splitting panels across east and west faces to spread generation throughout the day, which can improve self-consumption and reduce the amount of electricity exported at the lower SEG rate. East-facing panels generate more in the morning, while west-facing panels peak in the afternoon — both align well with typical household usage patterns. Only north-facing roofs are generally unsuitable for solar in the UK.