Glamorgan
Solar panels in Neath, with the numbers shown.
About 6,330 kWh a year from 12 panels in Neath, £6,360 installed, with your system designed on a free 30-minute video call.
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- Free 30-minute video design call
- Priced before anyone visits
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What a roof in Neath can generate
Neath's best month is May, at 126 kWh per kWp; December manages 32.3. Over the year that comes to 996 kWh per kWp, 6% above our Glamorgan county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 34.2 |
| February | 53 |
| March | 87.2 |
| April | 117 |
| May | 126 |
| June | 123 |
| July | 120 |
| August | 107 |
| September | 93 |
| October | 61 |
| November | 42 |
| December | 32.3 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
Our GB average is 925 kWh per kWp a year, the mean of the 85 county PVGIS estimates we publish; at 996, Neath is 8% above it.
How Neath compares
Among the places we publish figures for, Neath is one of 32 Glamorgan towns we track, and it ranks 19th of 32 for solar yield. It is a medium town in the House of Commons Library classification, with 40,953 residents, and its roofs see 2.73 peak sun hours a day across the year. That drives the standard 12 panel model to 6,335 kWh of generation, of which around 5,398 kWh is exported at 12p for £648 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on Neath'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.
Neath sits within Neath Port Talbot, its local planning authority, and the House of Commons Library classes it 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.
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.
Modelled for Neath at 51.66139, -3.81746 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
Connecting solar to the Neath network
National Grid Electricity Distribution (NGED) owns and runs the local electricity network in Neath, as part of its South Wales licence area.
For a typical home the paperwork is light: a system of up to 3.68kW per phase goes through G98, which means NGED is notified within 28 days of switch-on rather than asked beforehand.
Anything bigger is a G99 case and is applied for first. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late.
Sources: NESO DNO licence areas (3 May 2024); NGED, guaranteed standards of performance table, checked 25 September 2026. G98 vs G99, explained.
Heat pumps and EV charging in Neath
A heat pump in Neath
Solar and a heat pump pull in opposite directions through the year: Neath's roofs make 1,030 kWh from November to February on a 12-panel system, and 3,030 kWh from May to August. The heating season leans on the grid, so off-peak rates do the heavy lifting.
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 Neath
From April to September, 69% of a Neath roof's yearly output arrives, peaking at about 800 kWh in May 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.
The calculator above includes a 7.4kW smart charger from £1,100 installed. Renters and flat owners with off-street parking can claim 75% of a chargepoint's cost, up to £500 per socket, until 31 March 2027 (gov.uk, checked 28 September 2026).
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 Neath
Guidance is nationwide, so the benchmarks hold in Neath: repair costs, service scope, and when the inverter is the real fault.
Neath solar questions
What could a roof in Neath generate?
PVGIS puts a roof in Neath at 996 kWh per kWp a year, 2.73 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,330 kWh a year, most of it between April and September.
What would 12 solar panels cost in Neath?
£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 Neath differs is output: about 6,330 kWh a year from that system.
Do I need permission from the DNO for solar in Neath?
Usually not in advance. NGED, the network operator for Neath, only needs a G98 notification within 28 days of commissioning for systems up to 3.68kW per phase. Bigger inverter or battery outputs need G99 approval first. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late. "See our DNO explainer.
How much would export pay on a system in Neath?
It is exported. With typical use and no battery, about 5,398 kWh of the 6,330 kWh a 12-panel system makes in Neath goes to the grid, around £648 a year at 12p. A battery keeps more of it for the evening; the export rates table shows what suppliers pay.
Do solar panels work in winter in Neath?
Yes, at a lower level. PVGIS gives Neath 32.3 kWh per kWp in December and 34.2 in January, so a 12-panel system makes about 210 kWh and 220 kWh in those months, against 800 kWh in May. Winter output mostly covers daytime use rather than exporting.
How Neath 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 Neath |
|---|---|---|
| Neath | 996 | this town |
| Baglan | 1,027 | +31 kWh |
| Clydach | 981 | −15 kWh |
| Port Talbot | 1,026 | +30 kWh |
| Swansea | 1,023 | +27 kWh |
| Ystalyfera | 900 | −96 kWh |
| Maesteg | 954 | −42 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 Neath: Solar panels in Neath from OVO Solar & Battery
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Further reading for Neath
Sourced, dated and written by us. The same ground we cover on your free call.
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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.