Wiltshire
Solar panels in Chippenham, designed on a free call.
Twelve panels (6.36 kWp) here make about 6,420 kWh a year for £6,360 installed, designed around your roof 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 Chippenham, in numbers
From 34.2 kWh per kWp in December to 123.9 in July: a roof in Chippenham makes 3.6 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 | 52.3 |
| March | 88.4 |
| April | 114 |
| May | 124 |
| June | 121 |
| July | 124 |
| August | 109 |
| September | 94.1 |
| October | 64.5 |
| November | 45.1 |
| December | 34.2 |
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: Chippenham makes 1,009 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Chippenham is 9% above it.
How Chippenham compares
Among the places we publish figures for, Chippenham is one of 20 Wiltshire towns we track, and it ranks 20th of 20 for solar yield. It is a medium town in the House of Commons Library classification, with 37,849 residents, and its roofs see 2.76 peak sun hours a day across the year. That drives the standard 12 panel model to 6,417 kWh of generation, of which around 5,481 kWh is exported at 12p for £658 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
These are starting numbers, not a quote. The calculator below opens on Chippenham'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.
Planning applications here go through Wiltshire; nationally, the House of Commons Library classes Chippenham 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.
The figures use PVGIS for the centre of Chippenham (51.45985, -2.12437), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
The network operator for Chippenham
Scottish and Southern Electricity Networks (SSEN) owns and runs the local electricity network in Chippenham, as part of its Southern 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 SSEN is notified within 28 days of switch-on rather than asked beforehand.
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 Chippenham
A heat pump in Chippenham
In December, the darkest month here, 12 panels in Chippenham make about 220 kWh. That is when a heat pump runs hardest, so its running cost in Chippenham comes down to the tariff and the flow temperature rather than the roof.
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 Chippenham
Chippenham'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.
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 Chippenham
If a system in Chippenham is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Common questions about solar in Chippenham
How much energy would 12 solar panels make in Chippenham?
Chippenham 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.
Is solar more expensive in Chippenham?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Chippenham, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,420 kWh a year here, which is what drives payback.
Who is the network operator in Chippenham, and do I need a G99 application?
The operator is Scottish and Southern Electricity Networks (SSEN). 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. 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. Your design call checks which route yours needs.
What could I earn from exporting in Chippenham?
On the 12p export scenario, a 12-panel system in Chippenham sends about 5,481 kWh a year to the grid, worth around £658. The export rates table compares what each supplier pays.
How does solar perform in Chippenham in the winter months?
December is the weakest month in Chippenham: 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 Chippenham compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Chippenham.
| Town | kWh per kWp a year | vs Chippenham |
|---|---|---|
| Chippenham | 1,009 | this town |
| Corsham | 1,025 | +16 kWh |
| Calne | 1,013 | +4 kWh |
| Melksham | 1,031 | +22 kWh |
| Malmesbury | 1,018 | +9 kWh |
| Devizes | 1,025 | +16 kWh |
| Bradford-on-Avon | 1,020 | +11 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 Chippenham: Solar panels in Chippenham 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.
Guides worth reading before your call
Sourced, dated and written by us. The same ground we cover on your free call.
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 →Charging an EV from your own solar
Every surplus kWh is 3.6 to 5 miles. Whether that beats a 7p overnight rate is arithmetic.
Read the guide →How much does a heat pump cost? The 2026 numbers, before and after the grant
UK median installed cost around £12,908, before the up to £7,500 grant comes off.
Read the guide →Choosing a tariff when you have solar, a battery and an EV
Solar, battery and EV want different tariffs. How to work out which one to protect.
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.