Glamorgan
Solar panels in Llanharan and Brynna, sized to your roof.
A 12-panel roof in Llanharan and Brynna makes about 6,640 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
Get my free quote
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.
or call 07782 219224
- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
What a roof in Llanharan and Brynna can generate
From 33.1 kWh per kWp in December to 132.2 in May: a roof in Llanharan and Brynna makes 4 times as much in its best month as in its darkest, and 1,044 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 36.3 |
| February | 55.8 |
| March | 91.9 |
| April | 122 |
| May | 132 |
| June | 128 |
| July | 128 |
| August | 112 |
| September | 96.1 |
| October | 64.6 |
| November | 44 |
| December | 33.1 |
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 1,044, Llanharan and Brynna is 13% above it.
How Llanharan and Brynna compares
Small towns rarely get published solar figures, so here are the numbers for Llanharan and Brynna. It is one of 32 Glamorgan towns we track, and it ranks 10th of 32 for solar yield, a town of 8,769 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,044 kWh per kWp a year, 2.86 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £931 of year one benefit, £247 of it from your own generation and £684 from export at 12p.
These are starting numbers, not a quote. The calculator below opens on Llanharan and Brynna's own PVGIS figure; change the panels, the battery or the export rate and it reruns. The design call replaces every assumption with your roof and your bills.
Llanharan and Brynna sits within Rhondda Cynon Taf, its local planning authority, and the House of Commons Library classes it 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.
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 Llanharan and Brynna at 51.53636, -3.45127 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 Llanharan and Brynna network
On NESO's licence-area map, Llanharan and Brynna is in South Wales, which National Grid Electricity Distribution (NGED) operates. That makes NGED the network operator for any system fitted here.
Below 3.68kW per phase of inverter and battery output, the G98 route applies: the installation is notified to NGED within 28 days of commissioning, with no prior approval.
A bigger inverter or battery output needs a G99 application in advance. 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.
Adding a heat pump or an EV charger in Llanharan and Brynna
A heat pump in Llanharan and Brynna
Solar and a heat pump pull in opposite directions through the year: Llanharan and Brynna's roofs make 1,080 kWh from November to February on a 12-panel system, and 3,180 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 Llanharan and Brynna
A 12-panel roof in Llanharan and Brynna makes about 840 kWh in May. A typical home uses around 70 kWh of that in daylight (the calculator's typical-use settings), which leaves most of the month's output for an EV or for export.
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.
The packages, priced before anyone visits
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Llanharan and Brynna
Guidance is nationwide, so the benchmarks hold in Llanharan and Brynna: repair costs, service scope, and when the inverter is the real fault.
Llanharan and Brynna solar questions
What could a roof in Llanharan and Brynna generate?
PVGIS puts a roof in Llanharan and Brynna at 1,044 kWh per kWp a year, 2.86 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,640 kWh a year, most of it between April and September.
How much are solar panels in Llanharan and Brynna?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Llanharan and Brynna before a battery. What Llanharan and Brynna changes is the return, about 6,640 kWh a year from that system, and your design call prices your actual roof.
Do I need permission from the DNO for solar in Llanharan and Brynna?
Usually not in advance. NGED, the network operator for Llanharan and Brynna, 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 can I earn from exporting solar in Llanharan and Brynna?
With typical use and no battery, a 12-panel system in Llanharan and Brynna exports about 5,703 kWh a year. At 12p per kWh that is roughly £684; a supplier paying more, or a battery that keeps more for the evening, changes the figure. See the export rates table.
Do solar panels work in winter in Llanharan and Brynna?
Yes, at a lower level. PVGIS gives Llanharan and Brynna 33.1 kWh per kWp in December and 36.3 in January, so a 12-panel system makes about 210 kWh and 230 kWh in those months, against 840 kWh in May. Winter output mostly covers daytime use rather than exporting.
How Llanharan and Brynna 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 Llanharan and Brynna |
|---|---|---|
| Llanharan and Brynna | 1,044 | this town |
| Pencoed | 1,051 | +7 kWh |
| Tonyrefail | 991 | −53 kWh |
| Bridgend | 1,057 | +13 kWh |
| Tonypandy | 956 | −88 kWh |
| Porth | 961 | −83 kWh |
| Sarn, Tondu and Bryncethin | 1,058 | +14 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 Llanharan and Brynna: Solar panels in Llanharan and Brynna from OVO Solar & Battery
Also near Llanharan and Brynna
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 Llanharan and Brynna
Sourced, dated and written by us. The same ground we cover on your free call.
The 0% VAT deadline: what ends on 31 March 2027, and what it costs to miss it
The install deadline is still 31 March 2027. Electricity's 0% VAT was extended to the end of June.
Read the guide →How much a battery saves by charging on cheap night rates
What charging at 8.5p and using at 26.32p is actually worth over a year.
Read the guide →What an EV charger installation actually involves
Main fuse, DNO notification, load balancing and the paperwork. What really happens.
Read the guide →Are air source heat pumps any good? What owners actually report
The UK's largest survey found 80% of heat pump owners satisfied, against 70% for gas boilers.
Read the guide →Will energy prices keep rising, and by how much
The January forecasts jumped fast. What is confirmed, what is guessed, and whether solar is a real hedge.
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 →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.