Buckinghamshire
Solar panels in Chesham, priced before anyone visits.
A 12-panel roof in Chesham makes about 6,420 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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How much a Chesham roof makes, month by month
From 35 kWh per kWp in December to 123.9 in July: a roof in Chesham makes 3.5 times as much in its best month as in its darkest, and 1,009 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 38.6 |
| February | 52.1 |
| March | 87.6 |
| April | 113 |
| May | 120 |
| June | 122 |
| July | 124 |
| August | 111 |
| September | 95.6 |
| October | 65.1 |
| November | 45.2 |
| December | 35 |
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: Chesham makes 1,009 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Chesham is 9% above it.
How Chesham compares
Small towns rarely get published solar figures, so here are the numbers for Chesham. It is one of 19 Buckinghamshire towns we track, and it ranks joint 13th of 19 for solar yield, a town of 24,709 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,009 kWh per kWp a year, 2.76 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £905 of year one benefit, £247 of it from your own generation and £658 from export at 12p.
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 Chesham's own yield.
Any planning application in Chesham sits with Buckinghamshire, 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.
The figures use PVGIS for the centre of Chesham (51.71216, -0.61209), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
The network operator for Chesham
The distribution network operator (DNO) for Chesham is UK Power Networks, which runs the East England licence area.
For a typical home the paperwork is light: a system of up to 3.68kW per phase goes through G98, which means UK Power Networks is notified within 28 days of switch-on rather than asked beforehand.
Larger systems go through G99 instead, applied for before installation. On timing: 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.
Beyond the panels: heating and car charging in Chesham
A heat pump in Chesham
In December, the darkest month here, 12 panels in Chesham make about 220 kWh. That is when a heat pump runs hardest, so its running cost in Chesham comes down to the tariff and the flow temperature rather than the roof.
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 Chesham
Summer is where a car earns its place. In July, 12 panels in Chesham make about 790 kWh, against roughly 70 kWh a typical home uses in daylight that month on our calculator's typical-use settings, so there is surplus a smart charger can put into the car instead of exporting it.
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.
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 Chesham
If a system in Chesham is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Solar in Chesham: your questions answered
How much energy would 12 solar panels make in Chesham?
Chesham averages 2.76 peak sun hours a day, which PVGIS turns into 1,009 kWh per kWp a year. On a 12-panel, 6.36 kWp roof that is about 6,420 kWh, 68% of it between April and September.
What does a typical solar system cost in Chesham?
Solar is priced at £1,000 per kWp installed wherever you live, so a 12-panel, 6.36 kWp system costs £6,360 in Chesham, exactly as it would anywhere else, before any battery. Location changes what the system makes, not what it costs: here that is about 6,420 kWh a year. The final figure comes from your roof on the design call.
Who is the network operator in Chesham, and do I need a G99 application?
The operator is UK Power Networks. Most home systems use the G98 route, a notification within 28 days of switch-on for up to 3.68kW per phase, so nothing waits on the network. Above that, G99 applies and has to be granted 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. Your design call checks which route yours needs.
What happens to the solar I do not use in Chesham?
Around £658 a year at 12p per kWh, for the roughly 5,481 kWh a 12-panel system in Chesham exports with typical use. Rates vary by supplier and some need their own tariff; the export rates table is dated and sourced.
How does solar perform in Chesham in the winter months?
December is the weakest month in Chesham: about 220 kWh from 12 panels, against 790 kWh in July. The panels still generate on bright winter days; they just cover a smaller share of what the house uses.
How Chesham compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Chesham.
| Town | kWh per kWp a year | vs Chesham |
|---|---|---|
| Chesham | 1,009 | this town |
| Amersham | 1,009 | level |
| Berkhamsted | 1,007 | −2 kWh |
| Prestwood and Great Missenden | 1,002 | −7 kWh |
| Hazlemere | 1,011 | +2 kWh |
| Chorleywood | 1,011 | +2 kWh |
| Tring | 1,005 | −4 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 Chesham: Solar panels in Chesham from OVO Solar & Battery
Also near Chesham
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.
Guides worth reading before your call
Sourced, dated and written by us. The same ground we cover on your free call.
What solar actually costs in 2026, and where every pound goes
Around £8,677 average, £1,550 to £1,800 per kW. Where every pound actually goes.
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 →Home EV charger types and speeds, explained properly
Granny cable, 7kW wall unit or 22kW three phase. What each adds per hour, and which you need.
Read the guide →What MCS certification actually buys you on a heat pump job
The gate on the £7,500 grant, the design standard behind your running costs, and the noise sign-off.
Read the guide →Why the best export rates always carry conditions
The top export rates are acquisition offers. Here is how to price the condition.
Read the guide →HIES explained: what the badge actually protects, and when
What HIES protects: deposits up to 25 percent capped at 5,000 pounds, and your workmanship guarantee.
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.