Surrey
Solar panels in Walton-on-Thames, with the numbers shown.
About 6,520 kWh a year from 12 panels in Walton-on-Thames, £6,360 installed, with your system designed on a free 30-minute video call.
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Walton-on-Thames' solar year
From 35.6 kWh per kWp in December to 127.1 in July: a roof in Walton-on-Thames makes 3.6 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 | 39.3 |
| February | 51.7 |
| March | 87.5 |
| April | 115 |
| May | 123 |
| June | 125 |
| July | 127 |
| August | 112 |
| September | 96.4 |
| October | 67.9 |
| November | 46.4 |
| December | 35.6 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,025 kWh per kWp in Walton-on-Thames against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Walton-on-Thames 11% above it.
How Walton-on-Thames compares
Among the places we publish figures for, Walton-on-Thames is one of 47 Surrey towns we track, and it ranks joint 17th of 47 for solar yield. It is a medium town in the House of Commons Library classification, with 28,335 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 Walton-on-Thames' own yield.
Elmbridge is the planning authority covering Walton-on-Thames, 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 Walton-on-Thames' own coordinates (51.38345, -0.40965), 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 Walton-on-Thames
On NESO's licence-area map, Walton-on-Thames is in South East England, which UK Power Networks operates. That makes UK Power Networks 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 UK Power Networks within 28 days of commissioning, with no prior approval.
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.
Beyond the panels: heating and car charging in Walton-on-Thames
A heat pump in Walton-on-Thames
A heat pump does most of its work from November to February. Over those four months, 12 panels in Walton-on-Thames make about 1,100 kWh, against 3,090 kWh from May to August, so winter heating runs mostly on grid electricity and the tariff matters more 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 Walton-on-Thames
From April to September, 68% of a Walton-on-Thames 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.
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 Walton-on-Thames
Faults, servicing and ageing inverters follow the same economics in Walton-on-Thames as anywhere else, and the guides below price them plainly.
Solar in Walton-on-Thames: your questions answered
What does a solar panel system produce in Walton-on-Thames?
Each kWp of panels in Walton-on-Thames 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 810 kWh in July.
How much are solar panels in Walton-on-Thames?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Walton-on-Thames before a battery. What Walton-on-Thames changes is the return, about 6,520 kWh a year from that system, and your design call prices your actual roof.
Would a system in Walton-on-Thames need approval from the network operator?
Walton-on-Thames is on UK Power Networks' network (South East England licence area). Systems up to 3.68kW per phase of inverter output follow G98: UK Power Networks is notified within 28 days of commissioning, with no approval needed first. Anything larger needs a G99 application before installation. 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. Our G98 vs G99 guide explains both routes.
How much can I earn from exporting solar in Walton-on-Thames?
With typical use and no battery, a 12-panel system in Walton-on-Thames exports about 5,582 kWh a year. At 12p per kWh that is roughly £670; a supplier paying more, or a battery that keeps more for the evening, changes the figure. See the export rates table.
Is solar worth it in Walton-on-Thames in winter?
It works, but the year is lopsided. 68% of a Walton-on-Thames roof's output lands between April and September; the four months from November to February give about 1,100 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Walton-on-Thames compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Walton-on-Thames.
| Town | kWh per kWp a year | vs Walton-on-Thames |
|---|---|---|
| Walton-on-Thames | 1,025 | this town |
| Hersham | 1,025 | level |
| Weybridge | 1,025 | level |
| Esher | 1,024 | −1 kWh |
| Sunbury-on-Thames | 1,024 | −1 kWh |
| West Molesey | 1,019 | −6 kWh |
| Ashford Common | 1,024 | −1 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 Walton-on-Thames: Solar panels in Walton-on-Thames from OVO Solar & Battery
Also near Walton-on-Thames
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Guides worth reading before your call
Sourced, dated and written by us. The same ground we cover on your free call.
The 0% VAT deadline: what ends on 31 March 2027, and what it costs to miss it
The install deadline is still 31 March 2027. Electricity's 0% VAT was extended to the end of June.
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 →What it really costs to charge an EV at home versus in public
Home off-peak charging costs a fraction of the public price. The arithmetic, and the tariff it depends on.
Read the guide →Sizing a heat pump: what a proper survey covers
Sized by calculation, not by rule of thumb. What the survey covers, and what guessing costs.
Read the guide →Will energy prices keep rising, and by how much
The January forecasts jumped fast. What is confirmed, what is guessed, and whether solar is a real hedge.
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.