Devon
Solar panels in Totnes, designed on a free call.
A 12-panel roof in Totnes makes about 6,790 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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How much a Totnes roof makes, month by month
From 33.9 kWh per kWp in December to 132.1 in May: a roof in Totnes makes 3.9 times as much in its best month as in its darkest, and 1,067 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 39.3 |
| February | 54.7 |
| March | 92 |
| April | 123 |
| May | 132 |
| June | 131 |
| July | 131 |
| August | 118 |
| September | 99.2 |
| October | 67.3 |
| November | 46.3 |
| December | 33.9 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
Our GB average is 925 kWh per kWp a year, the mean of the 85 county PVGIS estimates we publish; at 1,067, Totnes is 15% above it.
How Totnes compares
Small towns rarely get published solar figures, so here are the numbers for Totnes. It is one of 23 Devon towns we track, and it ranks 7th of 23 for solar yield, a town of 9,317 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,067 kWh per kWp a year, 2.92 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £949 of year one benefit, £247 of it from your own generation and £702 from export at 12p.
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 Totnes' own yield.
Planning applications here go through South Hams; nationally, the House of Commons Library classes Totnes 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.
Your real roof and usage, worked through on a free 30-minute video call. Use the full form or leave three details below.
Price this for your roof
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.
Generation is modelled from PVGIS satellite data for Totnes' own coordinates (50.43185, -3.68665), using the same 26.32p/kWh import value and £1,000 per kWp installed pricing as every Clearline estimate; the methodology is on our help page.
NGED and your Totnes connection
Totnes is served by National Grid Electricity Distribution (NGED): the town's centre falls inside its South West England licence area on NESO's boundary map.
Most home systems stay within 3.68kW per phase of inverter output, which puts them on G98, a notification to NGED within 28 days of switch-on. Panel count does not decide it; the inverter and any battery do.
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 Totnes
A heat pump in Totnes
In December, the darkest month here, 12 panels in Totnes make about 220 kWh. That is when a heat pump runs hardest, so its running cost in Totnes comes down to the tariff and the flow temperature rather than the roof.
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 Totnes
Totnes' May output, about 840 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.
Renters and flat owners with private off-street parking can get 75% off a chargepoint and its installation, up to £500 per socket, until 31 March 2027 (gov.uk, checked 28 September 2026). The calculator above adds a 7.4kW smart charger from £1,100 installed.
Installed prices, the same in every town
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Totnes
The same sourced benchmarks apply in Totnes as everywhere we cover: honest repair pricing and what a service should include.
Common questions about solar in Totnes
How much electricity do solar panels make in Totnes?
About 6,790 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Totnes: 1,067 kWh per kWp, or 2.92 peak sun hours a day on average. May is the strongest month, at about 840 kWh.
Is solar more expensive in Totnes?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Totnes, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,790 kWh a year here, which is what drives payback.
Which DNO covers Totnes, and what does it need from me?
National Grid Electricity Distribution (NGED) covers Totnes. A home system of up to 3.68kW per phase is notified to NGED within 28 days of commissioning under G98, and nothing waits on approval. Larger outputs need a G99 application before work starts. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late.
What could I earn from exporting in Totnes?
On the 12p export scenario, a 12-panel system in Totnes sends about 5,849 kWh a year to the grid, worth around £702. The export rates table compares what each supplier pays.
How much solar does Totnes get in December?
December is the low point: about 220 kWh from a 12-panel system in Totnes, on PVGIS data, rising to 840 kWh in May. From November to February the same system makes about 1,110 kWh in total, which is why a battery charged off-peak does more of the work in winter.
How Totnes compares with its neighbours
Same satellite dataset, same assumptions, so the differences are real geography rather than modelling noise.
| Town | kWh per kWp a year | vs Totnes |
|---|---|---|
| Totnes | 1,067 | this town |
| Paignton | 1,085 | +18 kWh |
| Newton Abbot | 1,051 | −16 kWh |
| Brixham | 1,098 | +31 kWh |
| Torquay | 1,058 | −9 kWh |
| Kingsteignton | 1,063 | −4 kWh |
| Ivybridge | 1,109 | +42 kWh |
Same PVGIS v5.2 query for every town. Small differences are within year-to-year weather; more than about 30 kWh per kWp apart is geography.
Also for Totnes: Solar panels in Totnes from OVO Solar & Battery
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Further reading for Totnes
Sourced, dated and written by us. The same ground we cover on your free call.
Aiko vs LONGi for a UK roof: Neostar 3 or Hi-MO X10?
Datasheet against datasheet, with a verdict by roof type and the warranty by series.
Read the guide →Which battery size band does your home fall into?
Where UK homes actually land, why oversizing costs you, and what shifts the band.
Read the guide →Home EV charger types and speeds, explained properly
Granny cable, 7kW wall unit or 22kW three phase. What each adds per hour, and which you need.
Read the guide →What are the disadvantages of a heat pump? Six honest ones
Six real disadvantages, worth planning around rather than a reason to rule one out.
Read the guide →Why tariff choice moves payback more than kit choice
Identical kit, five times the export income. The tariff decision worked through with August 2026 rates.
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.