Monmouthshire
Solar panels in Abergavenny, with the numbers shown.
Twelve panels (6.36 kWp) here make about 6,250 kWh a year for £6,360 installed, designed around your roof on a free 30-minute video call.
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What a roof in Abergavenny can generate
Abergavenny's best month is July, at 122.5 kWh per kWp; December manages 31.7. Over the year that comes to 983 kWh per kWp, 2% below our Monmouthshire county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 35.6 |
| February | 51.3 |
| March | 87 |
| April | 112 |
| May | 122 |
| June | 121 |
| July | 123 |
| August | 107 |
| September | 92.4 |
| October | 59.8 |
| November | 40.8 |
| December | 31.7 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
Against Great Britain as a whole: Abergavenny makes 983 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Abergavenny is 6% above it.
How Abergavenny compares
Small towns rarely get published solar figures, so here are the numbers for Abergavenny. It is one of 16 Monmouthshire towns we track, and it ranks joint 11th of 16 for solar yield, a town of 14,045 people in the House of Commons Library settlement data. PVGIS gives its roofs 983 kWh per kWp a year, 2.69 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £885 of year one benefit, £247 of it from your own generation and £638 from export at 12p.
Every figure here assumes a clear, south-facing roof at 35 degrees. Yours will differ, which is what the free design call is for; until then, the calculator below tests panels, batteries and export rates on Abergavenny's own yield.
Abergavenny sits within Monmouthshire, 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.
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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.
The figures use PVGIS for the centre of Abergavenny (51.82746, -3.01781), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
Connecting solar to the Abergavenny network
The distribution network operator (DNO) for Abergavenny 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.
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.
Beyond the panels: heating and car charging in Abergavenny
A heat pump in Abergavenny
Solar and a heat pump pull in opposite directions through the year: Abergavenny's roofs make 1,010 kWh from November to February on a 12-panel system, and 3,000 kWh from May to August. The heating season leans on the grid, so off-peak rates do the heavy lifting.
In Wales, the Boiler Upgrade Scheme pays £7,500 towards an air source or ground source heat pump and £2,500 towards an air-to-air one, with £1,500 more until March 2027 for homes heated by oil or LPG with no mains gas (gov.uk, checked 28 September 2026).
Charging an EV in Abergavenny
From April to September, 69% of a Abergavenny roof's yearly output arrives, peaking at about 780 kWh in July 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.
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.
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 Abergavenny
Guidance is nationwide, so the benchmarks hold in Abergavenny: repair costs, service scope, and when the inverter is the real fault.
Common questions about solar in Abergavenny
What could a roof in Abergavenny generate?
PVGIS puts a roof in Abergavenny at 983 kWh per kWp a year, 2.69 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,250 kWh a year, most of it between April and September.
How much are solar panels in Abergavenny?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Abergavenny before a battery. What Abergavenny changes is the return, about 6,250 kWh a year from that system, and your design call prices your actual roof.
Do I need permission from the DNO for solar in Abergavenny?
Usually not in advance. NGED, the network operator for Abergavenny, 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 Abergavenny?
With typical use and no battery, a 12-panel system in Abergavenny exports about 5,315 kWh a year. At 12p per kWh that is roughly £638; 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 Abergavenny?
Yes, at a lower level. PVGIS gives Abergavenny 31.7 kWh per kWp in December and 35.6 in January, so a 12-panel system makes about 200 kWh and 230 kWh in those months, against 780 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Abergavenny compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Abergavenny.
| Town | kWh per kWp a year | vs Abergavenny |
|---|---|---|
| Abergavenny | 983 | this town |
| Abersychan | 958 | −25 kWh |
| Abertillery | 947 | −36 kWh |
| Ebbw Vale | 945 | −38 kWh |
| Pontypool | 993 | +10 kWh |
| Tredegar | 950 | −33 kWh |
| Newbridge | 999 | +16 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 Abergavenny: Solar panels in Abergavenny from OVO Solar & Battery
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.
Guides worth reading before your call
Sourced, dated and written by us. The same ground we cover on your free call.
How to clean solar panels, and whether you need to at all
Cleaning is oversold and pigeon mesh is undersold. The numbers behind both.
Read the guide →Whole home backup or partial backup? The runtime arithmetic
Whole home backup sounds obvious until you do the runtime maths. Here is how to choose the right tier.
Read the guide →Charging an EV from your own solar
Every surplus kWh is 3.6 to 5 miles. Whether that beats a 7p overnight rate is arithmetic.
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 →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.