Surrey
Solar panels in Cobham, with the numbers shown.
A 12-panel roof in Cobham makes about 6,520 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 Cobham can generate
From 36.3 kWh per kWp in December to 126.8 in July: a roof in Cobham 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 | 39 |
| February | 51.8 |
| March | 87.4 |
| April | 115 |
| May | 123 |
| June | 125 |
| July | 127 |
| August | 112 |
| September | 96.5 |
| October | 67.2 |
| November | 46.2 |
| December | 36.3 |
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 1,025, Cobham is 11% above it.
How Cobham compares
Small towns rarely get published solar figures, so here are the numbers for Cobham. It is one of 47 Surrey towns we track, and it ranks joint 17th of 47 for solar yield, a town of 17,727 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,025 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 £917 of year one benefit, £247 of it from your own generation and £670 from export at 12p.
These are starting numbers, not a quote. The calculator below opens on Cobham'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.
Cobham sits within Elmbridge, 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.
Generation is modelled from PVGIS satellite data for Cobham's own coordinates (51.33359, -0.38217), using the same 26.32p/kWh import value and £1,000 per kWp installed pricing as every Clearline estimate; the methodology is on our help page.
Connecting solar to the Cobham network
The distribution network operator (DNO) for Cobham is UK Power Networks, which runs the South East England licence area.
G98 is the simple route. If the inverter, plus any battery, stays at or under 3.68kW per phase, UK Power Networks only has to be told within 28 days after the system is commissioned.
Anything bigger is a G99 case and is applied for first. Ofgem's guaranteed standard for a low voltage generation connection quotation is 45 working days, with £80 paid for each working day late, and it binds UK Power Networks as it does every network operator.
Sources: NESO DNO licence areas (3 May 2024); Ofgem, Distributed Generation Standards Direction guidance, checked 27 September 2026. G98 vs G99, explained.
Adding a heat pump or an EV charger in Cobham
A heat pump in Cobham
Solar and a heat pump pull in opposite directions through the year: Cobham's roofs make 1,100 kWh from November to February on a 12-panel system, and 3,090 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 Cobham
From April to September, 68% of a Cobham roof's yearly output arrives, peaking at about 810 kWh in July on 12 panels. A car parked at home in daylight can soak up what the house, at around 70 kWh of daytime use that month, cannot.
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 Cobham
Guidance is nationwide, so the benchmarks hold in Cobham: repair costs, service scope, and when the inverter is the real fault.
Cobham solar questions
What could a roof in Cobham generate?
PVGIS puts a roof in Cobham at 1,025 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 6,520 kWh a year, most of it between April and September.
What would 12 solar panels cost in Cobham?
£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 Cobham differs is output: about 6,520 kWh a year from that system.
Do I need permission from the DNO for solar in Cobham?
Usually not in advance. UK Power Networks, the network operator for Cobham, 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. Ofgem's guaranteed standard for a low voltage generation connection quotation is 45 working days, with £80 paid for each working day late, and it binds UK Power Networks as it does every network operator. "See our DNO explainer.
How much would export pay on a system in Cobham?
It is exported. With typical use and no battery, about 5,582 kWh of the 6,520 kWh a 12-panel system makes in Cobham goes to the grid, around £670 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 Cobham?
Yes, at a lower level. PVGIS gives Cobham 36.3 kWh per kWp in December and 39 in January, so a 12-panel system makes about 230 kWh and 250 kWh in those months, against 810 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Cobham compares with its neighbours
Same satellite dataset, same assumptions, so the differences are real geography rather than modelling noise.
| Town | kWh per kWp a year | vs Cobham |
|---|---|---|
| Cobham | 1,025 | this town |
| Hersham | 1,025 | level |
| Esher | 1,024 | −1 kWh |
| Byfleet | 1,024 | −1 kWh |
| Great Bookham and Fetcham | 1,024 | −1 kWh |
| Leatherhead | 1,030 | +5 kWh |
| Walton-on-Thames | 1,025 | level |
Same PVGIS v5.2 query for every town. Small differences are within year-to-year weather; more than about 30 kWh per kWp apart is geography.
Also for Cobham: Solar panels in Cobham from OVO Solar & Battery
Also near Cobham
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Further reading for Cobham
Sourced, dated and written by us. The same ground we cover on your free call.
Do solar panels increase home value? What the actual data shows
The largest UK study found a 6.1% to 7.1% sale price premium. Here is the full picture.
Read the guide →What a battery gateway actually does
Without a gateway your system shuts down when the grid does. Here is what the box actually does.
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 →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 →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 →Your MCS certificate: what it shows, when it arrives, and how a Smart Export Guarantee supplier uses it
The document your export payments hang on. Who issues it, what it shows, and how to get a copy.
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.