Solar Panels & PV

How much does a home solar system cost in the UK?

A typical 3–4kWp solar system for a 3-bedroom house costs £5,000–8,000 installed, with payback in 8–12 years through bill savings and export payments.

How much do solar panels cost to install in the UK?

A typical 4kWp system for a 3-bedroom house costs £6,000–£9,000 installed. Battery storage adds £3,000–£5,000 more.

What is the Smart Export Guarantee (SEG)?

The Smart Export Guarantee (SEG) pays you for surplus electricity exported from your solar panels back to the national grid — rates vary by supplier but are typically 4–20p per kWh.

Can solar panels power my house at night?

Not directly — solar panels only generate power in daylight. A battery storage system stores daytime generation for use at night.

How does solar panel installation work in the UK?

Solar panels are installed on your roof by an MCS-certified installer, connected to an inverter that converts DC power to AC, and then to your consumer unit — the whole process takes 1–2 days.

Do solar panels work in cloudy weather?

Yes — solar panels generate electricity even in cloudy conditions, just at reduced output (10–25% of peak capacity). The UK's diffuse light is sufficient for a worthwhile annual yield.