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MiddlesexSolar panels in Sunbury-on-Thames,
priced honestly.
Independent guidance on solar and battery storage for Sunbury-on-Thames homes in Middlesex: a free remote design call first, then an MCS-certified installation team for your area if you decide to go ahead. PVGIS puts a roof in Sunbury-on-Thames at 1,024 kWh per kWp a year, level with our Middlesex county estimate.
Start with your postcode
Free, no obligation. Takes about two minutes, and nobody visits your home.
What a roof in Sunbury-on-Thames can generate
Real satellite data for Sunbury-on-Thames, real installed pricing, and the same honest model we run for every place we cover.
How Sunbury-on-Thames compares
Small towns rarely get published solar figures, so here are the numbers for Sunbury-on-Thames. It is one of 23 Middlesex towns we track, and it ranks joint 15th of 23 for solar yield, a town of 22,155 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,024 kWh per kWp a year, 2.81 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £916 of year one benefit, £247 of it from your own generation and £669 from export at 12p.
Treat these as calibration rather than a quote. The calculator below runs the same model, defaulted to Sunbury-on-Thames's own yield, and at Sunbury-on-Thames's 1,024 kWh per kWp it 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 Spelthorne; nationally, the House of Commons Library classes Sunbury-on-Thames 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.
Price this properly, free →Your real roof, your real usage, on a free video call. No obligation.
A 12 panel, 6.36 kWp system in Sunbury-on-Thames generates around 6,513 kWh a year, worth around £916 in year one on the 12p export scenario.
Generation is modelled from PVGIS satellite data for Sunbury-on-Thames's own coordinates (51.41397, -0.41459), using the same 26.32p/kWh import value and £1,000 per kWp installed pricing as every Clearline estimate, with the full methodology, sourcing and assumptions set out on our help page.
Solar panel servicing and repair in Sunbury-on-Thames
If a system in Sunbury-on-Thames is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Common questions about solar in Sunbury-on-Thames
What could a roof in Sunbury-on-Thames generate?
PVGIS puts a roof in Sunbury-on-Thames at 1,024 kWh per kWp a year, 2.81 peak sun hours a day averaged across the seasons.
What does a typical solar system cost in Sunbury-on-Thames?
A typical 12 panel, 6.36 kWp system in Sunbury-on-Thames costs around £6,360 installed, at £1,000 per kWp before any battery.
Would a system in Sunbury-on-Thames need a G99 application?
Most home solar and battery systems qualify for the simpler G98 notification, made to the network operator (DNO) after installation rather than before. A minority, usually larger systems, need the fuller G99 process instead. Your design call checks which applies in Sunbury-on-Thames before anything is booked; our G98 vs G99 guide explains the difference in full.
What could I earn from exporting in Sunbury-on-Thames?
On the 12p export scenario, that 12 panel system sends about 5,576 kWh a year to the grid, worth around £669. The tariff guide compares the export rates that could apply to your setup.
Get your free quote
Takes about two minutes. We work out your options, then confirm your free remote design call, on video, at a time that suits you. It starts with your roof and your numbers, and the design is built around them rather than around a product someone needs to shift.
Reading for Sunbury-on-Thames homeowners
Independent, sourced and dated. The same ground we cover on your free call.
Why your inverter is smaller than your panel array, and why that is correct
More panel capacity than inverter capacity is a deliberate design choice.
Read the guide →Which battery size band does your home fall into?
Where UK homes actually land, why oversizing costs you, and what shifts the band.
Read the guide →Three phase and EV charging: what actually changes
Three phase buys 22kW charging. Most cars cannot use it, and load balancing usually solves the real problem.
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 →Your MCS certificate: what it shows, when it arrives, and how a Smart Export Guarantee supplier uses it
The document your export payments hang on. Who issues it, what it shows, and how to get a copy.
Read the guide →How Sunbury-on-Thames compares with its neighbours
Same satellite dataset, same assumptions, so the differences are real geography rather than modelling noise.
| Town | kWh per kWp | Peak sun hours | vs Sunbury-on-Thames |
|---|---|---|---|
| Sunbury-on-Thames | 1,024 | 2.81 | — |
| Ashford Common | 1,024 | 2.81 | level |
| Walton-on-Thames | 1,025 | 2.81 | +1 kWh |
| Ashford (Spelthorne) | 1,024 | 2.81 | level |
| Weybridge | 1,025 | 2.81 | +1 kWh |
| Hersham | 1,025 | 2.81 | +1 kWh |
| West Molesey | 1,019 | 2.79 | -5 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 Sunbury-on-Thames: Solar panels in Sunbury-on-Thames from OVO Solar & Battery