Solar Panels in Radstock, Somerset

A 3-4kWp system in Radstock 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 Radstock's solar yield of 1000 kWh/kWp, a 4kWp system generates approximately 4,000 kWh/year, paying for itself in 6-8 years through electricity savings of £1120+/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.

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.

Modern solar panels are warrantied for 25-30 years and typically last even longer with minimal maintenance. Panel efficiency degrades by just 0.3-0.5% per year, so after 25 years, your panels will still produce around 85-90% of their original output. Inverters typically last 10-15 years and may need one replacement over the system's lifetime, costing around £500-£1,000. With a typical payback period of 6-8 years, that leaves 17-22 years of near-free electricity generation. Panels require very little upkeep — UK rainfall keeps them clean in most cases.

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.

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.

Based on Somerset regional data, a 4kWp system generates approximately 4,000 kWh per year at a yield of 1000 kWh/kWp, covering 105% of average household use (3,800 kWh/year). The area receives around 1,650 sunshine hours annually. Somerset ranks #7 of 102 UK counties for solar yield, putting Radstock in an excellent position for solar energy. 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.

With a cost of £5,000-£8,000 (0% VAT included) and savings of £1120+ per year based on Radstock's solar yield of 1000 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 Radstock pays for itself in 6-8 years. Somerset ranks #7 of 102 UK counties for solar yield, putting Radstock in an excellent position for solar energy. 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.