Solar panels across Oxfordshire, designed on a free call.
Twelve panels (6.36 kWp) here make about 6,460 kWh a year for £6,360 installed, designed around your roof on a free 30-minute video call.
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- Free 30-minute video design call
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- Installed by our MCS-certified, fully insured teams
Sunlight in Oxfordshire, in numbers
Oxfordshire's best month is July, at 124.4 kWh per kWp; December manages 36. Over the year that comes to 1,015 kWh per kWp, 10% above the mean of our 85 county estimates.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 40.6 |
| February | 54.3 |
| March | 87.8 |
| April | 113 |
| May | 121 |
| June | 121 |
| July | 124 |
| August | 109 |
| September | 94.6 |
| October | 66.2 |
| November | 46.7 |
| December | 36 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,015 kWh per kWp in Oxfordshire against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Oxfordshire 10% above it.
How Oxfordshire compares
Oxfordshire ranks 19th of the 85 counties we track for solar yield, which puts export income near the top of the country. On the 12p scenario a 12 panel system here sends about 5,519 kWh to the grid a year on top of the £247 it saves you directly, so oversizing the array is usually the right call.
Treat these as calibration rather than a quote. The calculator below opens on Oxfordshire's own PVGIS yield and prices a 12 panel system at £6,360 installed before any battery; your free design call reworks every number for your roof.
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.
Generation from PVGIS v5.2 (European Commission JRC, SARAH3), retrieved August 2026 for a representative point in Oxfordshire (51.8085, -1.2871), assuming 1 kWp, 14% system loss, 35 degree pitch, due south. Import valued at 26.32p/kWh (Ofgem price cap average, Oct to Dec 2026); off-peak charging at 8.5p/kWh where used (a supplier's published off-peak rate, checked September 2026); export at the scenario you pick, from the dated tariff table. Prices are installed pricing, August 2026, standard installations; 530W LONGi panels at £1,000 per kWp. Estimates for illustration, not a quote: your free design call prices your actual roof.
SSEN and your Oxfordshire connection
The centre of Oxfordshire sits in Scottish and Southern Electricity Networks' Southern England licence area on NESO's boundary map, so SSEN is the network operator (DNO) a system here is registered with.
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.
Above that, G99 means applying before the work is booked. 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.
Parts of Oxfordshire are on a different network: some of its towns are served by NGED and UK Power Networks. Each town page names its own operator, worked out from that town's own location.
Sources: NESO DNO licence areas (3 May 2024); SSEN, micro-generation connections page, checked 25 September 2026. G98 vs G99, explained.

Heat pumps and EV charging in Oxfordshire
A heat pump in Oxfordshire
In December, the darkest month here, 12 panels in Oxfordshire make about 230 kWh. That is when a heat pump runs hardest, so its running cost in Oxfordshire comes down to the tariff and the flow temperature rather than the roof.
In England, the Boiler Upgrade Scheme pays £7,500 towards an air source or ground source heat pump and £2,500 towards an air-to-air one, with £1,500 more until March 2027 for homes heated by oil or LPG with no mains gas (gov.uk, checked 28 September 2026).
Charging an EV in Oxfordshire
Oxfordshire's July output, about 790 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.
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 across Oxfordshire
Every system is designed around your roof on the free call before anything is fitted.
Oxfordshire solar questions
How much electricity do solar panels make in Oxfordshire?
About 6,460 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Oxfordshire: 1,015 kWh per kWp, or 2.78 peak sun hours a day on average. July is the strongest month, at about 790 kWh.
Is solar more expensive in Oxfordshire?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Oxfordshire, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,460 kWh a year here, which is what drives payback.
Which DNO covers Oxfordshire, and what does it need from me?
Scottish and Southern Electricity Networks (SSEN) covers the centre of Oxfordshire. A home system of up to 3.68kW per phase is notified to SSEN within 28 days of commissioning under G98, and nothing waits on approval. Larger outputs need a G99 application before work starts. 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.
What could I earn from exporting in Oxfordshire?
On the 12p export scenario, a 12-panel system in Oxfordshire sends about 5,519 kWh a year to the grid, worth around £662. The export rates table compares what each supplier pays.
How much solar does Oxfordshire get in December?
December is the low point: about 230 kWh from a 12-panel system in Oxfordshire, on PVGIS data, rising to 790 kWh in July. From November to February the same system makes about 1,130 kWh in total, which is why a battery charged off-peak does more of the work in winter.
Towns we cover in Oxfordshire
10 Oxfordshire towns have their own page, each with PVGIS figures, a network operator and a monthly curve for its own location.
See a number before you speak to anyone
Answer a few questions about your roof and usage and see an instant solar and battery estimate. No email needed to see the result.
Reading for Oxfordshire homeowners
The same guidance we would talk through on your call, written down and sourced.
DNO application timescales, network by network: from a G98 notification to a G99 approval
Fit and notify within 28 days, or wait ten working days to 45 for a yes. System size decides which.
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 →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 →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 →How to check an MCS certificate is genuine, before the deposit leaves your account
A logo proves nothing. Certification is business specific, technology specific and checkable.
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.