Surrey
Solar panels in Sutton, priced before anyone visits.
Twelve panels (6.36 kWp) here make about 6,460 kWh a year for £6,360 installed, designed around your roof 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 Sutton, in numbers
Sutton's best month is July, at 125.5 kWh per kWp; December manages 35.7. Over the year that comes to 1,015 kWh per kWp, 1% below our Surrey county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 38 |
| February | 50.6 |
| March | 86.5 |
| April | 116 |
| May | 122 |
| June | 123 |
| July | 126 |
| August | 111 |
| September | 95.6 |
| October | 65.6 |
| November | 45.9 |
| December | 35.7 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,015 kWh per kWp in Sutton against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Sutton 10% above it.
How Sutton compares
Sutton is one of 47 Surrey towns we track, and it ranks joint 45th of 47 for solar yield. The House of Commons Library settlement classification puts it in the core city class, with a population of 213,888, which makes it one of the largest places we publish figures for. Scale changes nothing about the physics: PVGIS gives a roof here 1,015 kWh per kWp a year, 2.78 peak sun hours a day averaged across the seasons, and on the 12p scenario about £247 of the year one benefit comes from solar you use yourself, with export income adding £662.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on Sutton'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.
Sutton is its own local planning authority area, and its House of Commons Library settlement class is core city.
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.
Generation is modelled from PVGIS satellite data for Sutton's own coordinates (51.36412, -0.18141), 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.
The network operator for Sutton
Sutton is served by UK Power Networks: the town's centre falls inside its South East 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: UK Power Networks 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: 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.
Heat pumps and EV charging in Sutton
A heat pump in Sutton
In December, the darkest month here, 12 panels in Sutton make about 230 kWh. That is when a heat pump runs hardest, so its running cost in Sutton 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 Sutton
Summer is where a car earns its place. In July, 12 panels in Sutton 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.
If you rent, or own a flat, and have private off-street parking, the government chargepoint grant covers 75% of the cost, capped at £500 a socket, until 31 March 2027 (gov.uk, checked 28 September 2026). The calculator above prices 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 Sutton
If a system in Sutton is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Solar in Sutton: your questions answered
How much energy would 12 solar panels make in Sutton?
Sutton averages 2.78 peak sun hours a day, which PVGIS turns into 1,015 kWh per kWp a year. On a 12-panel, 6.36 kWp roof that is about 6,460 kWh, 68% of it between April and September.
What does a typical solar system cost in Sutton?
Solar is priced at £1,000 per kWp installed wherever you live, so a 12-panel, 6.36 kWp system costs £6,360 in Sutton, exactly as it would anywhere else, before any battery. Location changes what the system makes, not what it costs: here that is about 6,460 kWh a year. The final figure comes from your roof on the design call.
Who is the network operator in Sutton, 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 Sutton?
Around £662 a year at 12p per kWh, for the roughly 5,519 kWh a 12-panel system in Sutton 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 Sutton in the winter months?
December is the weakest month in Sutton: about 230 kWh from 12 panels, against 800 kWh in July. The panels still generate on bright winter days; they just cover a smaller share of what the house uses.
How Sutton compares with its neighbours
Same satellite dataset, same assumptions, so the differences are real geography rather than modelling noise.
| Town | kWh per kWp a year | vs Sutton |
|---|---|---|
| Sutton | 1,015 | this town |
| Banstead | 1,016 | +1 kWh |
| Worcester Park and Stoneleigh | 1,017 | +2 kWh |
| Merton | 1,022 | +7 kWh |
| Ewell | 1,017 | +2 kWh |
| Croydon | 1,015 | level |
| Epsom | 1,018 | +3 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 Sutton: Solar panels in Sutton from OVO Solar & Battery
Also near Sutton
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.
Further reading for Sutton
Sourced, dated and written by us. The same ground we cover on your free call.
0% VAT on solar and batteries: what qualifies, and what does not
Zero VAT until 31 March 2027, then 5% returns. What qualifies, and what it is worth.
Read the guide →Whole home backup or partial backup? The runtime arithmetic
Whole home backup sounds obvious until you do the runtime maths. Here is how to choose the right tier.
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 →EV tariffs compared: the cheapest overnight windows
Overnight rates of 6.99p to 9p against a 26.32p capped average, compared.
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.