Oxfordshire
Solar panels in Carterton, sized to your roof.
A 12-panel roof in Carterton makes about 6,540 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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What a roof in Carterton can generate
From 36 kWh per kWp in December to 126.1 in July: a roof in Carterton makes 3.5 times as much in its best month as in its darkest, and 1,028 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 40.8 |
| February | 53.6 |
| March | 89.5 |
| April | 115 |
| May | 124 |
| June | 122 |
| July | 126 |
| August | 112 |
| September | 95.9 |
| October | 66.9 |
| November | 46.4 |
| December | 36 |
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 1,028, Carterton is 11% above it.
How Carterton compares
Small towns rarely get published solar figures, so here are the numbers for Carterton. It is one of 10 Oxfordshire towns we track, and it ranks 1st of 10 for solar yield, a town of 18,934 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,028 kWh per kWp a year, 2.82 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £919 of year one benefit, £247 of it from your own generation and £672 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 Carterton's own yield.
Carterton sits within West Oxfordshire, its local planning authority, and the House of Commons Library classes it 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.
The figures use PVGIS for the centre of Carterton (51.75771, -1.58759), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
Connecting solar to the Carterton network
The distribution network operator (DNO) for Carterton is Scottish and Southern Electricity Networks (SSEN), which runs the Southern England licence area.
G98 is the simple route. If the inverter, plus any battery, stays at or under 3.68kW per phase, SSEN only has to be told within 28 days after the system is commissioned.
Anything bigger is a G99 case and is applied for first. SSEN says it can take up to 45 working days to issue a quotation for a generation connection above 3.68kW per phase and up to 50kW.
Sources: NESO DNO licence areas (3 May 2024); SSEN, micro-generation connections page, checked 25 September 2026. G98 vs G99, explained.
Beyond the panels: heating and car charging in Carterton
A heat pump in Carterton
Solar and a heat pump pull in opposite directions through the year: Carterton's roofs make 1,120 kWh from November to February on a 12-panel system, and 3,080 kWh from May to August. The heating season leans on the grid, so off-peak rates do the heavy lifting.
Grant support in England comes from the Boiler Upgrade Scheme: £7,500 for an air source or ground source heat pump, £2,500 for air-to-air, and an extra £1,500 until March 2027 where the home is heated by oil or LPG off the gas grid (gov.uk, checked 28 September 2026).
Charging an EV in Carterton
A 12-panel roof in Carterton makes about 800 kWh in July. A typical home uses around 70 kWh of that in daylight (the calculator's typical-use settings), which leaves most of the month's output for an EV or for export.
If you rent, or own a flat, and have private off-street parking, the government chargepoint grant covers 75% of the cost, capped at £500 a socket, until 31 March 2027 (gov.uk, checked 28 September 2026). The calculator above prices 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 Carterton
Guidance is nationwide, so the benchmarks hold in Carterton: repair costs, service scope, and when the inverter is the real fault.
Common questions about solar in Carterton
What could a roof in Carterton generate?
PVGIS puts a roof in Carterton at 1,028 kWh per kWp a year, 2.82 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,540 kWh a year, most of it between April and September.
What would 12 solar panels cost in Carterton?
£6,360 for 12 panels (6.36 kWp), the same as in every other place we cover, because solar is priced at £1,000 per kWp installed rather than by area. A battery adds its own installed price on top. Where Carterton differs is output: about 6,540 kWh a year from that system.
Do I need permission from the DNO for solar in Carterton?
Usually not in advance. SSEN, the network operator for Carterton, only needs a G98 notification within 28 days of commissioning for systems up to 3.68kW per phase. Bigger inverter or battery outputs need G99 approval first. SSEN says it can take up to 45 working days to issue a quotation for a generation connection above 3.68kW per phase and up to 50kW. "See our DNO explainer.
How much would export pay on a system in Carterton?
It is exported. With typical use and no battery, about 5,601 kWh of the 6,540 kWh a 12-panel system makes in Carterton goes to the grid, around £672 a year at 12p. A battery keeps more of it for the evening; the export rates table shows what suppliers pay.
Do solar panels work in winter in Carterton?
Yes, at a lower level. PVGIS gives Carterton 36 kWh per kWp in December and 40.8 in January, so a 12-panel system makes about 230 kWh and 260 kWh in those months, against 800 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Carterton compares with its neighbours
How the towns nearest Carterton compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs Carterton |
|---|---|---|
| Carterton | 1,028 | this town |
| Witney | 1,025 | −3 kWh |
| Faringdon | 1,030 | +2 kWh |
| Highworth | 1,018 | −10 kWh |
| Grove | 1,034 | +6 kWh |
| Kidlington | 1,014 | −14 kWh |
| Wantage | 1,031 | +3 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 Carterton: Solar panels in Carterton from OVO Solar & Battery
Also near Carterton
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Reading for Carterton homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
Do solar panels work in winter? Yes, just less than summer
Panels run on light, not sunshine. Cloud turns them down, not off. What that means for an awkward roof.
Read the guide →Adding a battery to solar panels you already own
Retrofitting a battery to working solar is straightforward. The paperwork is where people trip up.
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 →Which homes suit a heat pump, and which need work first
The trial data says no property type is unsuitable. Design quality decides the outcome.
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 →G98 or G99: which one applies, what the application involves, and how long it takes
The G98 line sits at 3.68kW per phase. Above it, your network operator has to say yes first.
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.