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GlamorganSolar panels in Swansea,
priced honestly.
Independent guidance on solar and battery storage for Swansea homes in Glamorgan: 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 Swansea at 1,023 kWh per kWp a year, 9% above our Glamorgan county estimate.
Start with your postcode
Free, no obligation. Takes about two minutes, and nobody visits your home.
What a roof in Swansea can generate
Real satellite data for Swansea, real installed pricing, and the same honest model we run for every place we cover.
How Swansea compares
Swansea is classed as a city in the House of Commons Library settlement data, home to 180,562 people. It is one of 32 Glamorgan towns we track, and it ranks 15th of 32 for solar yield. Its 1,023 kWh per kWp a year works out at 2.80 peak sun hours a day, and running the standard 12 panel model here splits the return into £247 of savings from generation you use yourself and £668 of export income at 12p, with about 5,570 kWh a year going to the grid.
Treat these as calibration rather than a quote. The calculator below runs the same model, defaulted to Swansea's own yield, and at Swansea's 1,023 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.
Swansea sits within Swansea, its local planning authority, and the House of Commons Library classes it as a 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.
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 Swansea generates around 6,506 kWh a year, worth around £915 in year one on the 12p export scenario.
Generation is modelled from PVGIS satellite data for Swansea's own coordinates (51.63512, -3.9528), 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 Swansea
Guidance is nationwide, so the benchmarks hold in Swansea: repair costs, service scope, and when the inverter is the real fault.
Common questions about solar in Swansea
What could a roof in Swansea generate?
PVGIS puts a roof in Swansea at 1,023 kWh per kWp a year, 2.80 peak sun hours a day averaged across the seasons.
What does a typical solar system cost in Swansea?
A typical 12 panel, 6.36 kWp system in Swansea costs around £6,360 installed, at £1,000 per kWp before any battery.
Would a system in Swansea 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 Swansea before anything is booked; our G98 vs G99 guide explains the difference in full.
What could I earn from exporting in Swansea?
On the 12p export scenario, that 12 panel system sends about 5,570 kWh a year to the grid, worth around £668. 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 Swansea homeowners
Independent, sourced and dated. 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 →Inside a home battery: capacity, power and losses
Usable capacity, kW output, round trip losses and chemistry, in plain terms.
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 →Which homes suit a heat pump, and which need work first
The trial data says no property type is unsuitable. Design quality decides the outcome.
Read the guide →Which tariffs are actually built for battery charging
A battery buys cheap and uses dear. The tariff decides how much that is worth.
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 →How Swansea 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 Swansea |
|---|---|---|---|
| Swansea | 1,023 | 2.80 | — |
| Gowerton | 1,063 | 2.91 | +40 kWh |
| Gorseinon | 1,040 | 2.85 | +17 kWh |
| Clydach | 981 | 2.69 | -42 kWh |
| Baglan | 1,027 | 2.81 | +4 kWh |
| Neath | 996 | 2.73 | -27 kWh |
| Port Talbot | 1,026 | 2.81 | +3 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 Swansea: Solar panels in Swansea from OVO Solar & Battery