Solar Panel Installation FAQ

A typical residential solar panel and battery system costs between £10,000 and £20,000 depending on system size and your property. Solar panels are currently VAT-free (0% VAT) until at least March 2027, saving you around £1,600–£2,400. Most homeowners see a return on investment within approximately 7 years.

Most residential installations are completed in just 1–2 days. The full process — from initial survey to switching on your system — typically takes 4–8 weeks, which includes the survey, system design, DNO notification, and installation scheduling.

Yes. Solar panels generate electricity from daylight, not direct sunlight. On overcast days, panels still produce 10–25% of their peak output. The UK receives enough daylight for solar to be highly effective — over 1.3 million UK homes already have solar panels installed.

The Smart Export Guarantee is a government-backed scheme that pays you for surplus solar electricity you export back to the national grid. All energy suppliers with 150,000 or more customers are required to offer SEG tariffs, giving you an additional income stream on top of your bill savings.

In most cases, no. Solar panels on residential properties are classed as permitted development, so you won't need planning permission. Exceptions apply for listed buildings, properties in conservation areas, and some flats. We handle all the checks during your survey.

Modern solar panels are built to last 25–30 years or more. They come with a 25-year manufacturer warranty and degrade very slowly — typically losing only around 0.5% efficiency per year. After 25 years, most panels still operate at 85–90% of their original capacity.

Look for MCS Certification (Microgeneration Certification Scheme) — this is essential for quality assurance and eligibility for the Smart Export Guarantee. Lunar Solar is MCS Certified, NAPIT Approved, TrustMark Registered, and a HIES Member, giving you comprehensive consumer protection.

Yes. Studies show solar panels can increase property value by 4–14%. Buyers value lower energy bills and the green credentials. With rising energy costs, homes with solar and battery storage are increasingly attractive to purchasers.

The average UK homeowner saves 60–80% on their electricity bills with a solar panel and battery system. Actual savings depend on your energy usage, roof size, and orientation. We provide a personalised estimate during your free survey so you know exactly what to expect.

One of our surveyors visits your home to assess your roof's suitability — checking orientation, pitch, shading, and structural condition. We also review your electrical setup and energy usage. The survey is completely free, takes about an hour, and you'll receive a detailed proposal with expected savings and system recommendations.