Solar installers · Truro & Cornwall
Solar installers in Truro & Cornwall.
Find listed solar installers covering Truro and Cornwall — across 27 TR postcode districts. This is the sunniest corner of mainland Britain, which makes it one of the best places in the country to put panels on a roof.
Listed installers
No listed installers covering Cornwall yet.
Installers covering Cornwall aren't listed here yet, and we won't invent listings to fill space.
Your Solarable Report still works — take it to any local installer when you book a roof survey. They'll know your roof's likely main direction up-front.
If you're an installer covering Cornwall, claim your profile or get listed.
Check your roof
A Solarable Report shows your likely roof direction, a Solarable Score, and listed installers covering your postcode.
By the numbers
Cornwall solar, measured.
Typical yearly generation, per kW of panels
≈1,055 kWh per kWp a year — roughly 10% above the UK average
For every kilowatt of panels, a well-placed Cornwall roof generates about this much a year. Your own total depends on roof direction, pitch and shading — the roof check estimates it for your address.
How the sun falls across the year
Sunlight peaks in summer and dips in winter — a system is sized for the whole year, not just the peak. Estimated from PVGIS climate data for your postcode area; a roof survey confirms your exact figure.
Solar resource data: © European Union, 2025, PVGIS, EU Science Hub.
Sun figures from PVGIS; roof estimates include solar data from Google. How we measure.
Local context
Solar in Cornwall: quick guide.
Cornwall is the best-lit corner of mainland Britain, and it shows in the numbers — a roof here generates more than the same roof would almost anywhere else in the UK. Add a lot of off-gas-grid homes, where cutting an electricity or oil bill matters more, and the case for solar is unusually strong. Most of the nuance here is about protected landscapes and older roofs, not sunshine.
A few Cornwall-specific things worth knowing:
- The best sun in the country. The TR area tops the mainland for annual irradiation — the single biggest reason Cornish payback times tend to be short.
- Off the gas grid. Many rural homes heat with electricity, oil or LPG. That makes self-consumption — and often a battery — more valuable than the UK average.
- Protected landscapes. Large stretches of coast are AONB, and the historic towns have conservation areas and listed granite and slate cottages. Panels visible from the street can need consent in those settings.
- Slate and older roofs. Traditional Cornish roofs make the structural survey more important — worth confirming condition and fixings before you commit.
- Battery storage. With the yield Cornwall gets, storing more of it rather than exporting cheaply often stacks up — run it through the savings calculator.
Grants & support
What help is available in Cornwall?
Solar and battery installations across the UK are currently zero-rated for VAT until 31 March 2027 — a straight saving on the installed price for every household, with no application needed. In England, ECO4 and the Warm Homes scheme can help eligible lower-income households with energy-efficiency measures through their energy supplier or local council.
Eligibility for grant schemes depends on your income, home and circumstances, and the schemes change. We keep the current picture on one page rather than guess what you'll qualify for.
Common questions
FAQs about solar in Cornwall.
Is Cornwall a good place for solar panels?
About as good as it gets in Britain. Cornwall and the TR postcode area get the highest annual solar irradiation on the UK mainland — noticeably more sun than the Midlands or the north. A well-oriented Cornish roof produces more, and pays back sooner, than the same roof almost anywhere else in the country. The check that matters is your own roof: direction, pitch and shading.
Is solar with a battery worth it in rural Cornwall?
Often, yes — and more so than average. A lot of Cornish homes are off the mains gas grid and rely on electricity, oil or LPG for heating, which changes the sums. Adding battery storage lets you use more of what your roof generates rather than exporting it cheaply. It's worth running your own numbers through the savings calculator, and a local installer can size it to how you actually use power.
Do I need planning permission for solar panels in Cornwall?
For most homes, no — panels are usually permitted development. Cornwall has a lot of protected landscape, though: large Areas of Outstanding Natural Beauty along the coast, conservation areas in the historic towns, and listed granite and slate cottages. In those settings panels can need planning permission or listed-building consent. A local installer who works Cornwall will know the local position.
Which areas does this cover?
This page covers the whole TR postcode area — Truro and across Cornwall, including Falmouth, Newquay, Redruth, Camborne, Helston, Penzance and St Ives (and the Isles of Scilly). Listed installers usually cover a wide sweep of the county; check whether your nearest one covers your specific postcode district.
Are you a solar installer covering Cornwall?
Claim your free profile if we've already listed you — or add your company to the directory.
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Useful next steps.
Is my roof suitable for solar?
Direction-led explanation, with the quick roof check.
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Solar savings calculator
Annual benefit and payback in honest UK ranges.
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Can I get solar panels?
Top-of-funnel suitability check for UK homes.
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For installers
Get a listed profile from £149/year (founding price).
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Solar companies near me
Find listed installers covering your postcode, by area.
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