Solar panels in Cardiganshire, priced before anyone visits.
About 5,830 kWh a year from 12 panels in Cardiganshire, £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
- Installed by our MCS-certified, fully insured teams
Cardiganshire's solar year
PVGIS puts Cardiganshire at 916 kWh per kWp a year, 1% below the mean of our 85 county estimates. 69% of it arrives between April and September, peaking in May.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 30.6 |
| February | 48.1 |
| March | 81.7 |
| April | 111 |
| May | 120 |
| June | 114 |
| July | 111 |
| August | 97.1 |
| September | 82.7 |
| October | 56.1 |
| November | 38.2 |
| December | 26 |
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: Cardiganshire makes 916 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Cardiganshire is 1% below it.
How Cardiganshire compares
Cardiganshire ranks 50th of the 85 counties we track for solar yield. Self use does the heavy lifting here: of the £833 year one benefit on a typical 12 panel system, £247 comes from replacing 26.32p imports with your own generation, which is why battery sizing matters more than panel count.
Treat these as calibration rather than a quote. The calculator below opens on Cardiganshire's own PVGIS yield and prices a 12 panel system at £6,360 installed before any battery; your free design call reworks every number for your roof.
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 from PVGIS v5.2 (European Commission JRC, SARAH3), retrieved August 2026 for a representative point in Cardiganshire (52.2562, -4.0705), assuming 1 kWp, 14% system loss, 35 degree pitch, due south. Import valued at 26.32p/kWh (Ofgem price cap average, Oct to Dec 2026); off-peak charging at 8.5p/kWh where used (a supplier's published off-peak rate, checked September 2026); export at the scenario you pick, from the dated tariff table. Prices are installed pricing, August 2026, standard installations; 530W LONGi panels at £1,000 per kWp. Estimates for illustration, not a quote: your free design call prices your actual roof.
Who runs the grid in Cardiganshire
On NESO's licence-area map, the middle of Cardiganshire falls in South Wales, which National Grid Electricity Distribution (NGED) operates.
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.
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.
Parts of Cardiganshire are on a different network: some of its towns are served by SP Energy Networks. Each town page names its own operator, worked out from that town's own location.
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 Cardiganshire
A heat pump in Cardiganshire
A heat pump does most of its work from November to February. Over those four months, 12 panels in Cardiganshire make about 910 kWh, against 2,810 kWh from May to August, so winter heating runs mostly on grid electricity and the tariff matters more than the roof.
Grant support in Wales comes from the Boiler Upgrade Scheme: £7,500 for an air source or ground source heat pump, £2,500 for air-to-air, and an extra £1,500 until March 2027 where the home is heated by oil or LPG off the gas grid (gov.uk, checked 28 September 2026).
Charging an EV in Cardiganshire
A 12-panel roof in Cardiganshire makes about 760 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.
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).
What the named kit costs, installed
Every system is designed around your roof on the free call before anything is fitted.
Solar in Cardiganshire: your questions answered
What does a solar panel system produce in Cardiganshire?
Each kWp of panels in Cardiganshire makes 916 kWh a year on PVGIS figures, so a typical 12-panel system produces around 5,830 kWh, from about 170 kWh in December up to 760 kWh in May.
What would 12 solar panels cost in Cardiganshire?
£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 Cardiganshire differs is output: about 5,830 kWh a year from that system.
Would a system in Cardiganshire need approval from the network operator?
The centre of Cardiganshire 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 would export pay on a system in Cardiganshire?
It is exported. With typical use and no battery, about 4,889 kWh of the 5,830 kWh a 12-panel system makes in Cardiganshire goes to the grid, around £587 a year at 12p. A battery keeps more of it for the evening; the export rates table shows what suppliers pay.
Is solar worth it in Cardiganshire in winter?
It works, but the year is lopsided. 69% of a Cardiganshire roof's output lands between April and September; the four months from November to February give about 910 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
Towns we cover in Cardiganshire
One Cardiganshire town has its own page so far, with a yield worked out for its own centroid.
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.
Reading for Cardiganshire homeowners
The same guidance we would talk through on your call, written down and sourced.
Solar installation day: exactly what happens, hour by hour
The week before, the day itself hour by hour, and the paperwork that follows.
Read the guide →Does a standalone battery actually pay back?
No panels means one job: buy cheap, use later. The tariff decides whether it pays.
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 →Are heat pumps noisy? The 37 dB(A) answer, in plain terms
The 1 metre boundary rule is gone. A 37 dB(A) sound test replaced it.
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 →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.