Oxfordshire
Solar panels in Witney, sized to your roof.
About 6,520 kWh a year from 12 panels in Witney, £6,360 installed, with your system designed on a free 30-minute video call.
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- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
Witney's solar year
From 35.9 kWh per kWp in December to 125.6 in July: a roof in Witney makes 3.5 times as much in its best month as in its darkest, and 1,025 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 40.8 |
| February | 53.8 |
| March | 89.2 |
| April | 115 |
| May | 123 |
| June | 122 |
| July | 126 |
| August | 111 |
| September | 95.7 |
| October | 66.7 |
| November | 46.6 |
| December | 35.9 |
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: Witney makes 1,025 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Witney is 11% above it.
How Witney compares
Among the places we publish figures for, Witney is one of 10 Oxfordshire towns we track, and it ranks joint 2nd of 10 for solar yield. It is a medium town in the House of Commons Library classification, with 32,534 residents, and its roofs see 2.81 peak sun hours a day across the year. That drives the standard 12 panel model to 6,519 kWh of generation, of which around 5,582 kWh is exported at 12p for £670 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
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 Witney's own yield.
West Oxfordshire is the planning authority covering Witney, which the House of Commons Library classes as a medium 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 Witney (51.7869, -1.49327), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
Who runs the grid in Witney
On NESO's licence-area map, Witney is in Southern England, which Scottish and Southern Electricity Networks (SSEN) operates. That makes SSEN the network operator for any system fitted here.
Most home systems stay within 3.68kW per phase of inverter output, which puts them on G98, a notification to SSEN within 28 days of switch-on. Panel count does not decide it; the inverter and any battery do.
A bigger inverter or battery output needs a G99 application in advance. 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 Witney
A heat pump in Witney
A heat pump does most of its work from November to February. Over those four months, 12 panels in Witney make about 1,130 kWh, against 3,060 kWh from May to August, so winter heating runs mostly on grid electricity and the tariff matters more than the roof.
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 Witney
A 12-panel roof in Witney 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.
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 Witney
Faults, servicing and ageing inverters follow the same economics in Witney as anywhere else, and the guides below price them plainly.
Solar in Witney: your questions answered
What does a solar panel system produce in Witney?
Each kWp of panels in Witney makes 1,025 kWh a year on PVGIS figures, so a typical 12-panel system produces around 6,520 kWh, from about 230 kWh in December up to 800 kWh in July.
How much are solar panels in Witney?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Witney before a battery. What Witney changes is the return, about 6,520 kWh a year from that system, and your design call prices your actual roof.
Would a system in Witney need approval from the network operator?
Witney is on Scottish and Southern Electricity Networks' network (Southern England licence area). Systems up to 3.68kW per phase of inverter output follow G98: SSEN is notified within 28 days of commissioning, with no approval needed first. Anything larger needs a G99 application before installation. 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. Our G98 vs G99 guide explains both routes.
How much can I earn from exporting solar in Witney?
With typical use and no battery, a 12-panel system in Witney exports about 5,582 kWh a year. At 12p per kWh that is roughly £670; a supplier paying more, or a battery that keeps more for the evening, changes the figure. See the export rates table.
Is solar worth it in Witney in winter?
It works, but the year is lopsided. 68% of a Witney roof's output lands between April and September; the four months from November to February give about 1,130 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Witney compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Witney.
| Town | kWh per kWp a year | vs Witney |
|---|---|---|
| Witney | 1,025 | this town |
| Carterton | 1,028 | +3 kWh |
| Kidlington | 1,014 | −11 kWh |
| Faringdon | 1,030 | +5 kWh |
| Oxford | 1,022 | −3 kWh |
| Abingdon-on-Thames | 1,027 | +2 kWh |
| Grove | 1,034 | +9 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 Witney: Solar panels in Witney from OVO Solar & Battery
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Reading for Witney homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
The 0% VAT deadline: what ends on 31 March 2027, and what it costs to miss it
The install deadline is still 31 March 2027. Electricity's 0% VAT was extended to the end of June.
Read the guide →Sigenergy SigenStor review: the 5-in-1 tower examined
The 5-in-1 tower reviewed by a site that does not sell it, warranty arithmetic included.
Read the guide →Charging an EV from your own solar
Every surplus kWh is 3.6 to 5 miles. Whether that beats a 7p overnight rate is arithmetic.
Read the guide →Are heat pumps noisy? The 37 dB(A) answer, in plain terms
The 1 metre boundary rule is gone. A 37 dB(A) sound test replaced it.
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 →NAPIT, NICEIC and competent person schemes: who tells building control about your solar
Solar work is notifiable. A competent person scheme means your installation team notifies, not you.
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.