Wiltshire
Solar panels in Malmesbury, priced before anyone visits.
About 6,470 kWh a year from 12 panels in Malmesbury, £6,360 installed, with your system designed on a free 30-minute video call.
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- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
Sunlight in Malmesbury, in numbers
PVGIS puts Malmesbury at 1,018 kWh per kWp a year, 2% below our Wiltshire county estimate. 68% of it arrives between April and September, peaking in July.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 39.7 |
| February | 53.4 |
| March | 88.7 |
| April | 115 |
| May | 124 |
| June | 122 |
| July | 125 |
| August | 110 |
| September | 94.5 |
| October | 65.7 |
| November | 45.2 |
| December | 34.9 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,018 kWh per kWp in Malmesbury against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Malmesbury 10% above it.
How Malmesbury compares
Small towns rarely get published solar figures, so here are the numbers for Malmesbury. It is one of 20 Wiltshire towns we track, and it ranks joint 14th of 20 for solar yield, a town of 7,626 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,018 kWh per kWp a year, 2.79 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £912 of year one benefit, £247 of it from your own generation and £665 from export at 12p.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on Malmesbury'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.
Planning applications here go through Wiltshire; nationally, the House of Commons Library classes Malmesbury 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.
Modelled for Malmesbury at 51.58738, -2.1015 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
SSEN and your Malmesbury connection
Malmesbury is served by Scottish and Southern Electricity Networks (SSEN): the town's centre falls inside its Southern England licence area on NESO's boundary map.
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.
Larger systems go through G99 instead, applied for before installation. On timing: 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 Malmesbury
A heat pump in Malmesbury
Heating demand peaks when solar is weakest. In Malmesbury, a 12-panel system makes about 220 kWh in December and 250 kWh in January, a fraction of its 800 kWh in July, which is why a heat pump here is costed on its tariff first.
In England, the Boiler Upgrade Scheme pays £7,500 towards an air source or ground source heat pump and £2,500 towards an air-to-air one, with £1,500 more until March 2027 for homes heated by oil or LPG with no mains gas (gov.uk, checked 28 September 2026).
Charging an EV in Malmesbury
Summer is where a car earns its place. In July, 12 panels in Malmesbury make about 800 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.
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 Malmesbury
The same sourced benchmarks apply in Malmesbury as everywhere we cover: honest repair pricing and what a service should include.
Solar in Malmesbury: your questions answered
How much electricity do solar panels make in Malmesbury?
About 6,470 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Malmesbury: 1,018 kWh per kWp, or 2.79 peak sun hours a day on average. July is the strongest month, at about 800 kWh.
What does a typical solar system cost in Malmesbury?
Solar is priced at £1,000 per kWp installed wherever you live, so a 12-panel, 6.36 kWp system costs £6,360 in Malmesbury, exactly as it would anywhere else, before any battery. Location changes what the system makes, not what it costs: here that is about 6,470 kWh a year. The final figure comes from your roof on the design call.
Which DNO covers Malmesbury, and what does it need from me?
Scottish and Southern Electricity Networks (SSEN) covers Malmesbury. 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 happens to the solar I do not use in Malmesbury?
Around £665 a year at 12p per kWh, for the roughly 5,538 kWh a 12-panel system in Malmesbury exports with typical use. Rates vary by supplier and some need their own tariff; the export rates table is dated and sourced.
How much solar does Malmesbury get in December?
December is the low point: about 220 kWh from a 12-panel system in Malmesbury, on PVGIS data, rising to 800 kWh in July. From November to February the same system makes about 1,100 kWh in total, which is why a battery charged off-peak does more of the work in winter.
How Malmesbury compares with its neighbours
How the towns nearest Malmesbury compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs Malmesbury |
|---|---|---|
| Malmesbury | 1,018 | this town |
| Chippenham | 1,009 | −9 kWh |
| Royal Wootton Bassett | 1,018 | level |
| Cirencester | 1,009 | −9 kWh |
| Calne | 1,013 | −5 kWh |
| Corsham | 1,025 | +7 kWh |
| Stroud | 998 | −20 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 Malmesbury: Solar panels in Malmesbury 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 Malmesbury homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
Aiko vs LONGi for a UK roof: Neostar 3 or Hi-MO X10?
Datasheet against datasheet, with a verdict by roof type and the warranty by series.
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 →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 →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 →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.