Buckinghamshire
Solar panels in Old Windsor and Wraysbury.
Twelve panels here make about 6,510 kWh a year for £6,360 installed, designed on a free 30-minute video call.
Get my free quote
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 Old Windsor and Wraysbury, in numbers
Old Windsor and Wraysbury's best month is July, at 125.5 kWh per kWp; December manages 36.4. Over the year that comes to 1,024 kWh per kWp, 3% above our Buckinghamshire county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 40.3 |
| February | 53.1 |
| March | 86.9 |
| April | 114 |
| May | 122 |
| June | 124 |
| July | 126 |
| August | 112 |
| September | 96.3 |
| October | 67.3 |
| November | 46.6 |
| December | 36.4 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,024 kWh per kWp in Old Windsor and Wraysbury against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Old Windsor and Wraysbury 11% above it.
How Old Windsor and Wraysbury compares
Small towns rarely get published solar figures, so here are the numbers for Old Windsor and Wraysbury. It is one of 19 Buckinghamshire towns we track, and it ranks 3rd of 19 for solar yield, a town of 7,612 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,024 kWh per kWp a year, 2.81 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £916 of year one benefit, £247 of it from your own generation and £669 from export at 12p.
These are starting numbers, not a quote. The calculator below opens on Old Windsor and Wraysbury's own PVGIS figure; change the panels, the battery or the export rate and it reruns. The design call replaces every assumption with your roof and your bills.
Any planning application in Old Windsor and Wraysbury sits with Windsor and Maidenhead, and its official House of Commons Library settlement class is 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.
Modelled for Old Windsor and Wraysbury at 51.45927, -0.57105 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
The network operator for Old Windsor and Wraysbury
The distribution network operator (DNO) for Old Windsor and Wraysbury 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.
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.
Sources: NESO DNO licence areas (3 May 2024); SSEN, micro-generation connections page, checked 25 September 2026. G98 vs G99, explained.
Adding a heat pump or an EV charger in Old Windsor and Wraysbury
A heat pump in Old Windsor and Wraysbury
Heating demand peaks when solar is weakest. In Old Windsor and Wraysbury, a 12-panel system makes about 230 kWh in December and 260 kWh in January, a fraction of its 800 kWh in July, 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 Old Windsor and Wraysbury
Old Windsor and Wraysbury's July output, about 800 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).
What the named kit costs, installed
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Old Windsor and Wraysbury
The same sourced benchmarks apply in Old Windsor and Wraysbury as everywhere we cover: honest repair pricing and what a service should include.
Common questions about solar in Old Windsor and Wraysbury
How much electricity do solar panels make in Old Windsor and Wraysbury?
About 6,510 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Old Windsor and Wraysbury: 1,024 kWh per kWp, or 2.81 peak sun hours a day on average. July is the strongest month, at about 800 kWh.
Is solar more expensive in Old Windsor and Wraysbury?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Old Windsor and Wraysbury, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,510 kWh a year here, which is what drives payback.
Which DNO covers Old Windsor and Wraysbury, and what does it need from me?
Scottish and Southern Electricity Networks (SSEN) covers Old Windsor and Wraysbury. 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 Old Windsor and Wraysbury?
On the 12p export scenario, a 12-panel system in Old Windsor and Wraysbury sends about 5,576 kWh a year to the grid, worth around £669. The export rates table compares what each supplier pays.
How much solar does Old Windsor and Wraysbury get in December?
December is the low point: about 230 kWh from a 12-panel system in Old Windsor and Wraysbury, on PVGIS data, rising to 800 kWh in July. From November to February the same system makes about 1,120 kWh in total, which is why a battery charged off-peak does more of the work in winter.
How Old Windsor and Wraysbury compares with its neighbours
How the towns nearest Old Windsor and Wraysbury compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs Old Windsor and Wraysbury |
|---|---|---|
| Old Windsor and Wraysbury | 1,024 | this town |
| Egham | 1,024 | level |
| Windsor | 1,021 | −3 kWh |
| Staines-upon-Thames | 1,024 | level |
| Stanwell | 1,026 | +2 kWh |
| Slough | 1,028 | +4 kWh |
| Ashford (Spelthorne) | 1,024 | level |
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 Old Windsor and Wraysbury: Solar panels in Old Windsor and Wraysbury from OVO Solar & Battery
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 Old Windsor and Wraysbury homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
Why solar panels stop working, and how to work out which one it is
There is an order to this, and it starts at the inverter display rather than the roof.
Read the guide →Inside a home battery: capacity, power and losses
Usable capacity, kW output, round trip losses and chemistry, in plain terms.
Read the guide →What an EV charger installation actually involves
Main fuse, DNO notification, load balancing and the paperwork. What really happens.
Read the guide →The Boiler Upgrade Scheme, explained
A fixed amount, claimed on your behalf by our installation teams, with a real deadline on the £9,000 version.
Read the guide →Will energy prices keep rising, and by how much
The January forecasts jumped fast. What is confirmed, what is guessed, and whether solar is a real hedge.
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.