Glamorgan
Solar panels in Port Talbot, with the numbers shown.
A 12-panel roof in Port Talbot makes about 6,530 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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Port Talbot's solar year
From 32.5 kWh per kWp in December to 130.6 in May: a roof in Port Talbot makes 4 times as much in its best month as in its darkest, and 1,026 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 35.3 |
| February | 54.7 |
| March | 90.3 |
| April | 120 |
| May | 131 |
| June | 126 |
| July | 125 |
| August | 111 |
| September | 94.9 |
| October | 62.8 |
| November | 43 |
| December | 32.5 |
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 1,026, Port Talbot is 11% above it.
How Port Talbot compares
Among the places we publish figures for, Port Talbot is one of 32 Glamorgan towns we track, and it ranks 13th of 32 for solar yield. It is a medium town in the House of Commons Library classification, with 31,751 residents, and its roofs see 2.81 peak sun hours a day across the year. That drives the standard 12 panel model to 6,525 kWh of generation, of which around 5,589 kWh is exported at 12p for £671 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 Port Talbot'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 Port Talbot is the planning authority covering Port Talbot, 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.
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 Port Talbot's own coordinates (51.58572, -3.78802), 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 Port Talbot
The distribution network operator (DNO) for Port Talbot is National Grid Electricity Distribution (NGED), which runs the 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 Port Talbot
A heat pump in Port Talbot
A heat pump does most of its work from November to February. Over those four months, 12 panels in Port Talbot make about 1,050 kWh, against 3,130 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 Port Talbot
From April to September, 69% of a Port Talbot roof's yearly output arrives, peaking at about 830 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.
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.
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 Port Talbot
Faults, servicing and ageing inverters follow the same economics in Port Talbot as anywhere else, and the guides below price them plainly.
Port Talbot solar questions
What does a solar panel system produce in Port Talbot?
Each kWp of panels in Port Talbot makes 1,026 kWh a year on PVGIS figures, so a typical 12-panel system produces around 6,530 kWh, from about 210 kWh in December up to 830 kWh in May.
How much are solar panels in Port Talbot?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Port Talbot before a battery. What Port Talbot changes is the return, about 6,530 kWh a year from that system, and your design call prices your actual roof.
Would a system in Port Talbot need approval from the network operator?
Port Talbot is on National Grid Electricity Distribution's network (South Wales licence area). Systems up to 3.68kW per phase of inverter output follow G98: NGED is notified within 28 days of commissioning, with no approval needed first. Anything larger needs a G99 application before installation. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late. Our G98 vs G99 guide explains both routes.
How much can I earn from exporting solar in Port Talbot?
With typical use and no battery, a 12-panel system in Port Talbot exports about 5,589 kWh a year. At 12p per kWh that is roughly £671; 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 Port Talbot in winter?
It works, but the year is lopsided. 69% of a Port Talbot roof's output lands between April and September; the four months from November to February give about 1,050 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Port Talbot compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Port Talbot.
| Town | kWh per kWp a year | vs Port Talbot |
|---|---|---|
| Port Talbot | 1,026 | this town |
| Baglan | 1,027 | +1 kWh |
| Neath | 996 | −30 kWh |
| North Cornelly and Kenfig Hill | 1,059 | +33 kWh |
| Maesteg | 954 | −72 kWh |
| Swansea | 1,023 | −3 kWh |
| Porthcawl | 1,059 | +33 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 Port Talbot: Solar panels in Port Talbot from OVO Solar & Battery
Also near Port Talbot
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Answer a few questions about your roof and usage and see an instant solar and battery estimate. No email needed to see the result.
Guides worth reading before your call
Sourced, dated and written by us. The same ground we cover on your free call.
Single phase or three phase? The sixty-second check that decides your system size
One look at your fuse board sets the ceiling on how much solar you can connect.
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 →The main home EV chargers, compared on what actually differs
Eight popular UK home chargers on cable, connectivity, warranty and tariff integration.
Read the guide →Heat pump running costs versus a gas boiler, assumptions shown
Four numbers decide it: seasonal efficiency, flow temperature, tariff and heat demand.
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 →NAPIT, NICEIC and competent person schemes: who tells building control about your solar
Solar work is notifiable. A competent person scheme means your installation team notifies, not you.
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.