Berkshire
Solar panels in Thatcham, sized to your roof.
About 6,520 kWh a year from 12 panels in Thatcham, £6,360 installed, with your system designed 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
Thatcham's solar year
Thatcham's best month is July, at 125.1 kWh per kWp; December manages 36.6. Over the year that comes to 1,025 kWh per kWp, level with our Berkshire county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 41 |
| February | 53 |
| March | 88.8 |
| April | 115 |
| May | 123 |
| June | 123 |
| July | 125 |
| August | 111 |
| September | 96 |
| October | 65.9 |
| November | 46.2 |
| December | 36.6 |
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: Thatcham makes 1,025 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Thatcham is 11% above it.
How Thatcham compares
Among the places we publish figures for, Thatcham is one of 20 Berkshire towns we track, and it ranks 9th of 20 for solar yield. It is a medium town in the House of Commons Library classification, with 25,608 residents, and its roofs see 2.81 peak sun hours a day across the year. That drives the standard 12 panel model to 6,519 kWh of generation, of which around 5,582 kWh is exported at 12p for £670 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
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 Thatcham's own yield.
West Berkshire is the planning authority covering Thatcham, which the House of Commons Library classes 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.
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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 Thatcham's own coordinates (51.40253, -1.25663), 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.
Who runs the grid in Thatcham
On NESO's licence-area map, Thatcham is in Southern England, which Scottish and Southern Electricity Networks (SSEN) operates. That makes SSEN the network operator for any system fitted here.
Below 3.68kW per phase of inverter and battery output, the G98 route applies: the installation is notified to SSEN within 28 days of commissioning, with no prior approval.
Anything bigger is a G99 case and is applied for 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.
Sources: NESO DNO licence areas (3 May 2024); SSEN, micro-generation connections page, checked 25 September 2026. G98 vs G99, explained.
Beyond the panels: heating and car charging in Thatcham
A heat pump in Thatcham
A heat pump does most of its work from November to February. Over those four months, 12 panels in Thatcham make about 1,120 kWh, against 3,070 kWh from May to August, so winter heating runs mostly on grid electricity and the tariff matters more than the roof.
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 Thatcham
A 12-panel roof in Thatcham 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 Thatcham
Faults, servicing and ageing inverters follow the same economics in Thatcham as anywhere else, and the guides below price them plainly.
Common questions about solar in Thatcham
What does a solar panel system produce in Thatcham?
Each kWp of panels in Thatcham makes 1,025 kWh a year on PVGIS figures, so a typical 12-panel system produces around 6,520 kWh, from about 230 kWh in December up to 800 kWh in July.
What would 12 solar panels cost in Thatcham?
£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 Thatcham differs is output: about 6,520 kWh a year from that system.
Would a system in Thatcham need approval from the network operator?
Thatcham is on Scottish and Southern Electricity Networks' network (Southern England licence area). Systems up to 3.68kW per phase of inverter output follow G98: SSEN is notified within 28 days of commissioning, with no approval needed first. Anything larger needs a G99 application before installation. 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. Our G98 vs G99 guide explains both routes.
How much would export pay on a system in Thatcham?
It is exported. With typical use and no battery, about 5,582 kWh of the 6,520 kWh a 12-panel system makes in Thatcham 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.
Is solar worth it in Thatcham in winter?
It works, but the year is lopsided. 68% of a Thatcham roof's output lands between April and September; the four months from November to February give about 1,120 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Thatcham compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Thatcham.
| Town | kWh per kWp a year | vs Thatcham |
|---|---|---|
| Thatcham | 1,025 | this town |
| Newbury | 1,034 | +9 kWh |
| Tadley | 1,032 | +7 kWh |
| Basingstoke | 1,031 | +6 kWh |
| Reading | 1,028 | +3 kWh |
| Caversham | 1,025 | level |
| Didcot | 1,040 | +15 kWh |
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 Thatcham: Solar panels in Thatcham 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.
Why solar panels stop working, and how to work out which one it is
There is an order to this, and it starts at the inverter display rather than the roof.
Read the guide →GivEnergy in administration: what owners should do now
The sourced timeline, the warranty position, and the owner's checklist for this month.
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 →Are air source heat pumps any good? What owners actually report
The UK's largest survey found 80% of heat pump owners satisfied, against 70% for gas boilers.
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 →What MCS certification actually is, and why your export payments depend on it
The badge that decides whether your solar earns export payments. It cannot be added later.
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.