Devon
Solar panels in Exeter, designed on a free call.
About 6,740 kWh a year from 12 panels in Exeter, £6,360 installed, with your system designed on a free 30-minute video call.
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Three details. We call or text within one working day to book your free 30-minute design call, on video or by phone if you prefer.
or call 07782 219224
- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
Sunlight in Exeter, in numbers
Exeter's best month is May, at 128.9 kWh per kWp; December manages 36. Over the year that comes to 1,060 kWh per kWp, 8% above our Devon county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 41.7 |
| February | 58.4 |
| March | 93.2 |
| April | 120 |
| May | 129 |
| June | 126 |
| July | 127 |
| August | 114 |
| September | 98.2 |
| October | 67.4 |
| November | 48.2 |
| December | 36 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
Against Great Britain as a whole: Exeter makes 1,060 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Exeter is 15% above it.
How Exeter compares
Exeter is one of 23 Devon towns we track, and it ranks joint 10th of 23 for solar yield. The House of Commons Library settlement data classes it as a large town of 133,652 people. At 1,060 kWh per kWp a year, a typical 12 panel system here pays for itself in around 6.7 years on the 12p scenario: £943 of year one benefit against £6,360 installed, £247 of that benefit from cutting 26.32p imports with your own generation.
Every figure here assumes a clear, south-facing roof at 35 degrees. Yours will differ, which is what the free design call is for; until then, the calculator below tests panels, batteries and export rates on Exeter's own yield.
Exeter is its own local planning authority area, and its House of Commons Library settlement class is large 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.
Your real roof and usage, worked through on a free 30-minute video call. Use the full form or leave three details below.
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Three details. We call or text within one working day to book your free 30-minute design call, on video or by phone if you prefer.
Modelled for Exeter at 50.72145, -3.51069 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
NGED and your Exeter connection
Exeter sits in National Grid Electricity Distribution's South West England licence area, so NGED is the network operator (DNO) any solar panels or battery here are registered with.
Below 3.68kW per phase of inverter and battery output, the G98 route applies: the installation is notified to NGED within 28 days of commissioning, with no prior approval.
Above that, G99 means applying before the work is booked. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late.
Sources: NESO DNO licence areas (3 May 2024); NGED, guaranteed standards of performance table, checked 25 September 2026. G98 vs G99, explained.
Beyond the panels: heating and car charging in Exeter
A heat pump in Exeter
Heating demand peaks when solar is weakest. In Exeter, a 12-panel system makes about 230 kWh in December and 270 kWh in January, a fraction of its 820 kWh in May, which is why a heat pump here is costed on its tariff first.
The Boiler Upgrade Scheme, open in England and Wales, takes £7,500 off an air source or ground source heat pump, or £2,500 off an air-to-air unit. Homes on oil or LPG with no mains gas get £1,500 more until March 2027 (gov.uk, checked 28 September 2026).
Charging an EV in Exeter
Exeter's May output, about 820 kWh from 12 panels, is several times the 70 kWh or so a typical home uses in daylight that month on our calculator's settings. Daytime charging turns that surplus into miles.
The calculator above includes a 7.4kW smart charger from £1,100 installed. Renters and flat owners with off-street parking can claim 75% of a chargepoint's cost, up to £500 per socket, until 31 March 2027 (gov.uk, checked 28 September 2026).
The packages, priced before anyone visits
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Exeter
If a system in Exeter is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Solar in Exeter: your questions answered
How much energy would 12 solar panels make in Exeter?
Exeter averages 2.90 peak sun hours a day, which PVGIS turns into 1,060 kWh per kWp a year. On a 12-panel, 6.36 kWp roof that is about 6,740 kWh, 67% of it between April and September.
Is solar more expensive in Exeter?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Exeter, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,740 kWh a year here, which is what drives payback.
Who is the network operator in Exeter, and do I need a G99 application?
The operator is National Grid Electricity Distribution (NGED). Most home systems use the G98 route, a notification within 28 days of switch-on for up to 3.68kW per phase, so nothing waits on the network. Above that, G99 applies and has to be granted first. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late. Your design call checks which route yours needs.
What could I earn from exporting in Exeter?
On the 12p export scenario, a 12-panel system in Exeter sends about 5,805 kWh a year to the grid, worth around £697. The export rates table compares what each supplier pays.
How does solar perform in Exeter in the winter months?
December is the weakest month in Exeter: about 230 kWh from 12 panels, against 820 kWh in May. The panels still generate on bright winter days; they just cover a smaller share of what the house uses.
How Exeter compares with its neighbours
How the towns nearest Exeter compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs Exeter |
|---|---|---|
| Exeter | 1,060 | this town |
| Crediton | 1,020 | −40 kWh |
| Exmouth | 1,062 | +2 kWh |
| Dawlish | 1,044 | −16 kWh |
| Cullompton | 1,026 | −34 kWh |
| Teignmouth | 1,032 | −28 kWh |
| Sidmouth | 1,080 | +20 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 Exeter: Solar panels in Exeter from OVO Solar & Battery
Also near Exeter
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Reading for Exeter homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
Single phase or three phase? The sixty-second check that decides your system size
One look at your fuse board sets the ceiling on how much solar you can connect.
Read the guide →Tesla Powerwall 3 vs Duracell Dura16: which fits your home?
The two packages we actually price, compared on the numbers that decide it.
Read the guide →The main home EV chargers, compared on what actually differs
Eight popular UK home chargers on cable, connectivity, warranty and tariff integration.
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 →Choosing a tariff when you have solar, a battery and an EV
Solar, battery and EV want different tariffs. How to work out which one to protect.
Read the guide →Your MCS certificate: what it shows, when it arrives, and how a Smart Export Guarantee supplier uses it
The document your export payments hang on. Who issues it, what it shows, and how to get a copy.
Read the guide →Get my free quote
Takes about two minutes. We call or text within one working day to book your free 30-minute video design call at a time that suits you. We design it around your roof and your numbers, and our MCS-certified, fully insured installation teams install it.