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CornwallSolar panels in St Austell,
priced honestly.
Independent guidance on solar and battery storage for St Austell homes in Cornwall: a free remote design call first, then an MCS-certified installation team for your area if you decide to go ahead. PVGIS puts a roof in St Austell at 1,051 kWh per kWp a year, 3% above our Cornwall county estimate.
Start with your postcode
Free, no obligation. Takes about two minutes, and nobody visits your home.
What a roof in St Austell can generate
Real satellite data for St Austell, real installed pricing, and the same honest model we run for every place we cover.
How St Austell compares
Small towns rarely get published solar figures, so here are the numbers for St Austell. It is one of 14 Cornwall towns we track, and it ranks 9th of 14 for solar yield, a town of 24,539 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,051 kWh per kWp a year, 2.88 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £937 of year one benefit, £247 of it from your own generation and £690 from export at 12p.
Treat these as calibration rather than a quote. The calculator below runs the same model, defaulted to St Austell's own yield, and at St Austell's 1,051 kWh per kWp it prices a 12 panel system at £6,360 installed before any battery. Your free design call reworks every number for your actual roof, its shading and your usage.
Cornwall is the planning authority covering St Austell, which the House of Commons Library classes as a small town.
The charger is in the installed price but left out of payback: charging savings depend on your mileage and tariff, which the design call models properly.
Price this properly, free →Your real roof, your real usage, on a free video call. No obligation.
A 12 panel, 6.36 kWp system in St Austell generates around 6,684 kWh a year, worth around £936 in year one on the 12p export scenario.
Generation is modelled from PVGIS satellite data for St Austell's own coordinates (50.34182, -4.77946), using the same 26.32p/kWh import value and £1,000 per kWp installed pricing as every Clearline estimate, with the full methodology, sourcing and assumptions set out on our help page.
Solar panel servicing and repair in St Austell
Faults, servicing and ageing inverters follow the same economics in St Austell as anywhere else, and the guides below price them plainly.
Common questions about solar in St Austell
What could a roof in St Austell generate?
PVGIS puts a roof in St Austell at 1,051 kWh per kWp a year, 2.88 peak sun hours a day averaged across the seasons.
What does a typical solar system cost in St Austell?
A typical 12 panel, 6.36 kWp system in St Austell costs around £6,360 installed, at £1,000 per kWp before any battery.
Would a system in St Austell need a G99 application?
Most home solar and battery systems qualify for the simpler G98 notification, made to the network operator (DNO) after installation rather than before. A minority, usually larger systems, need the fuller G99 process instead. Your design call checks which applies in St Austell before anything is booked; our G98 vs G99 guide explains the difference in full.
What could I earn from exporting in St Austell?
On the 12p export scenario, that 12 panel system sends about 5,748 kWh a year to the grid, worth around £690. The tariff guide compares the export rates that could apply to your setup.
Get your free quote
Takes about two minutes. We work out your options, then confirm your free remote design call, on video, at a time that suits you. It starts with your roof and your numbers, and the design is built around them rather than around a product someone needs to shift.
Reading for St Austell homeowners
Independent, sourced and dated. The same ground we cover on your free call.
What solar actually costs in 2026, and where every pound goes
Around £8,677 average, £1,550 to £1,800 per kW. Where every pound actually goes.
Read the guide →Does a standalone battery actually pay back?
No panels means one job: buy cheap, use later. The tariff decides whether it pays.
Read the guide →How time of use charging windows actually work
How a cheap overnight window is metered and billed, and what a battery does inside it.
Read the guide →Heat pump running costs versus a gas boiler, assumptions shown
Four numbers decide it: seasonal efficiency, flow temperature, tariff and heat demand.
Read the guide →The price cap explained, and what it does to solar payback
The cap limits unit rates, not bills. That changes what solar payback means.
Read the guide →MCS, HIES, RECC, NAPIT, TrustMark and Flexi-Orb: which badge does what
Six logos, six different jobs. What each scheme covers, and which are actually required.
Read the guide →How St Austell compares with its neighbours
Same satellite dataset, same assumptions, so the differences are real geography rather than modelling noise.
| Town | kWh per kWp | Peak sun hours | vs St Austell |
|---|---|---|---|
| St Austell | 1,051 | 2.88 | — |
| Bodmin | 1,039 | 2.85 | -12 kWh |
| Truro | 1,052 | 2.88 | +1 kWh |
| Newquay | 1,054 | 2.89 | +3 kWh |
| Liskeard | 1,042 | 2.86 | -9 kWh |
| Falmouth | 1,056 | 2.89 | +5 kWh |
| Penryn | 1,062 | 2.91 | +11 kWh |
PVGIS v5.2 for each town centroid, identical assumptions throughout. A few kWh either way is weather-year noise; a spread beyond about 30 kWh per kWp is real geography.
Also for St Austell: Solar panels in St Austell from OVO Solar & Battery