Surrey
Solar panels in Egham, sized to your roof.
Twelve panels (6.36 kWp) here make about 6,510 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
What a roof in Egham can generate
From 36.4 kWh per kWp in December to 126 in July: a roof in Egham makes 3.5 times as much in its best month as in its darkest, and 1,024 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 40 |
| February | 53 |
| March | 87.2 |
| April | 114 |
| May | 123 |
| June | 123 |
| July | 126 |
| August | 112 |
| September | 96.2 |
| October | 67.3 |
| November | 46.7 |
| 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.
Our GB average is 925 kWh per kWp a year, the mean of the 85 county PVGIS estimates we publish; at 1,024, Egham is 11% above it.
How Egham compares
Among the places we publish figures for, Egham is one of 47 Surrey towns we track, and it ranks joint 24th of 47 for solar yield. It is a medium town in the House of Commons Library classification, with 29,561 residents, and its roofs see 2.81 peak sun hours a day across the year. That drives the standard 12 panel model to 6,513 kWh of generation, of which around 5,576 kWh is exported at 12p for £669 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on Egham's own yield, and prices a 12 panel system at £6,360 installed before any battery. Your free design call reworks every number for your actual roof, its shading and your usage.
Egham sits within Runnymede, its local planning authority, and the House of Commons Library classes it 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.
Modelled for Egham at 51.42779, -0.55296 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
Connecting solar to the Egham network
Scottish and Southern Electricity Networks (SSEN) owns and runs the local electricity network in Egham, as part of its Southern England licence area.
What decides the paperwork is the inverter and battery output, not the number of panels. Up to 3.68kW per phase, a system follows G98: SSEN is notified within 28 days of commissioning and nothing has to be approved first.
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.
Heat pumps and EV charging in Egham
A heat pump in Egham
Solar and a heat pump pull in opposite directions through the year: Egham's roofs make 1,120 kWh from November to February on a 12-panel system, and 3,070 kWh from May to August. The heating season leans on the grid, so off-peak rates do the heavy lifting.
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 Egham
A 12-panel roof in Egham 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.
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 Egham
Guidance is nationwide, so the benchmarks hold in Egham: repair costs, service scope, and when the inverter is the real fault.
Egham solar questions
What could a roof in Egham generate?
PVGIS puts a roof in Egham at 1,024 kWh per kWp a year, 2.81 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,510 kWh a year, most of it between April and September.
How much are solar panels in Egham?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Egham before a battery. What Egham changes is the return, about 6,510 kWh a year from that system, and your design call prices your actual roof.
Do I need permission from the DNO for solar in Egham?
Usually not in advance. SSEN, the network operator for Egham, 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 can I earn from exporting solar in Egham?
With typical use and no battery, a 12-panel system in Egham exports about 5,576 kWh a year. At 12p per kWh that is roughly £669; a supplier paying more, or a battery that keeps more for the evening, changes the figure. See the export rates table.
Do solar panels work in winter in Egham?
Yes, at a lower level. PVGIS gives Egham 36.4 kWh per kWp in December and 40 in January, so a 12-panel system makes about 230 kWh and 250 kWh in those months, against 800 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Egham compares with its neighbours
How the towns nearest Egham compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs Egham |
|---|---|---|
| Egham | 1,024 | this town |
| Staines-upon-Thames | 1,024 | level |
| Old Windsor and Wraysbury | 1,024 | level |
| Chertsey | 1,025 | +1 kWh |
| Stanwell | 1,026 | +2 kWh |
| Ashford (Spelthorne) | 1,024 | level |
| Ascot and Sunningdale | 1,023 | −1 kWh |
Each row is a PVGIS v5.2 run at that town's centre with the same settings. Treat gaps of a few kWh as noise and gaps over about 30 kWh per kWp as real differences in sunshine.
Also for Egham: Solar panels in Egham from OVO Solar & Battery
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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 Egham homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
How long does a solar inverter last, and when does replacing it make sense?
The one component you should expect to replace, and the decision tree when it goes.
Read the guide →How much a battery saves by charging on cheap night rates
What charging at 8.5p and using at 26.32p is actually worth over a year.
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 →What the Smart Export Guarantee actually is
The scheme obliges suppliers to pay above zero, and leaves the rate to them.
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.