0% VAT on Residential Solar Panels
Save 20% on your solar installation. No VAT on domestic solar PV until 2027.
How Solar Panels Work
Solar panels convert daylight into electricity that powers your home. Mounted on your roof, they generate free, clean electricity during daylight hours. Cornwall receives approximately 1,298 kWh/m² of solar irradiance per year — 19% above the UK national average — making it one of the best solar regions in the country. A typical 4kW system in Cornwall generates around 3,800–4,200 kWh per year, compared to just 3,400 kWh nationally. That's enough to cover a significant proportion of a household's annual electricity consumption. Any excess electricity can be exported to the grid for payment under the Smart Export Guarantee (SEG), with the best tariffs currently paying up to 25p/kWh. Since April 2022, residential solar panels attract 0% VAT (saving 20% on the total cost) — this applies until March 2027. Most Cornwall systems pay back within 7–9 years, significantly better than the national average, with panels continuing to generate for 25–30 years.
Key Benefits
Benefits of Solar Panels
0% VAT Until March 2027
No VAT on residential solar panel and battery installations, saving 20% on the total cost — typically £1,000–£3,000 on a solar-plus-battery package.
Cornwall's Outstanding Solar Resource
Cornwall generates 19% more solar energy than the UK average. A 4kW system here generates ~3,800–4,200 kWh/yr vs ~3,400 nationally, with payback around 8.6 years.
Smart Export Guarantee Income
Earn up to 25p/kWh for surplus electricity exported to the grid — completely tax-free for residential installations. A typical 4.6kWp system earns around £171/yr.
Pair with Battery Storage
Increase self-consumption from 30–50% to 75%+ with a battery. Combined with a time-of-use tariff, annual savings can reach £880–£1,030 for a 4kW system.
Increase Property Value
Homes with solar panels sell for more and achieve better EPC ratings. Buyers value lower energy bills and green credentials.
25–30 Year Lifespan
Modern n-Type TOPCon panels carry 25–30 year performance warranties with low annual degradation of 0.3–0.5%. Your system keeps generating long after payback.
Our Process
How It Works
Free Survey
We visit your property to assess your heating needs, measure heat loss, and discuss the best options for your home.
Design & Quote
We design a bespoke system, identify all eligible grants including the £7,500 BUS scheme, and provide a transparent fixed-price quote.
Installation
Our MCS certified engineers install your system cleanly and efficiently, typically within 2–4 days, with minimal disruption to your home.
Aftercare
Full system handover, MCS certification, warranty registration, BUS grant application completion, and ongoing support when you need it.
Solar Panel Costs in Cornwall
A 4kW residential solar panel system (10–12 panels) costs £6,000–£8,000 installed in Cornwall, with 0% VAT until March 2027. A 6kW system costs £8,500–£12,000. Adding a 9.5kWh battery storage system adds approximately £4,500–£7,000. Cornwall's exceptional solar irradiance means payback is around 8.6 years for solar-only and approximately 7.2 years with a battery. Note: China ended its 9% solar panel export rebate in April 2026, so panel prices may rise 8–15% over the next 6–12 months — buying now locks in current pricing before any increase. We provide a detailed generation estimate and savings projection as part of your free roof survey.
Trusted Partners
Brands We Install
What We Install
Products We Use
We only install products we trust. Click any product below to see full specifications and why we recommend it.
Areas We Cover for Solar Panels
We install solar panels across Cornwall. Click your area for local information and a free quote.
Pair Your Solar Panels with Another Service
Many of our customers save more by combining services. Here's what works best with a Solar Panels.
Store Your Solar and Use It in the Evening
Without a battery, you export surplus solar energy for just 5-15p/kWh. With one, you store it and use it at night instead of paying 30p+/kWh. Self-consumption rises from ~35% to ~85%.
Charge Your Electric Car on Free Solar Power
A Zappi smart charger diverts surplus solar energy to your car instead of exporting it for a fraction of the price. Most customers cover 50-70% of their EV charging with solar.
Want a bundled quote for multiple services? Contact us for a combined survey.
Our Work
Recent Solar Panels Projects
Real installations by our team across Cornwall — challenge, solution, and outcome.
.jpeg)
Common Questions
Frequently Asked Questions
01 How much do solar panels cost in the UK?
02 Do solar panels work on cloudy days in the UK?
03 How many solar panels do I need?
04 What is the Smart Export Guarantee?
05 Will solar panels damage my roof?
From Our Blog
How Much Do Solar Panels Cost in Cornwall in 2026?
Cornwall generates 19% more solar energy than the UK average, making it one of the best places in Br...
7 min read
Solar PVHow to Charge Your Electric Car Using Solar Panels
Pairing solar panels with a smart EV charger like the Zappi means you can charge your electric car o...
7 min read
Solar PVSmart Export Guarantee: Best SEG Rates in 2026 and How to Claim
The Smart Export Guarantee pays you for every unit of solar electricity you export to the grid. We e...
6 min read