Solar and batteries in Wigtownshire, sized to your roof.
A 12-panel roof in Wigtownshire makes about 6,150 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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Wigtownshire's solar year
From 23.7 kWh per kWp in December to 133.3 in May: a roof in Wigtownshire makes 5.6 times as much in its best month as in its darkest, and 967 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 26.3 |
| February | 48.9 |
| March | 84.6 |
| April | 117 |
| May | 133 |
| June | 127 |
| July | 124 |
| August | 109 |
| September | 82.8 |
| October | 56.5 |
| November | 35.1 |
| December | 23.7 |
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 967, Wigtownshire is 5% above it.
How Wigtownshire compares
Wigtownshire ranks 33rd of the 85 counties we track for solar yield, 15% above the Scotland average of our estimates. At 2.65 peak sun hours a day the sums lean on a healthy mix: £247 of the year one benefit here comes from solar you use yourself, with export at 12p adding £626.
Every figure here assumes a clear, south-facing roof at 35 degrees in the middle of Wigtownshire. Yours will differ; the calculator below lets you test panels, batteries and export rates first.
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.
Generation from PVGIS v5.2 (European Commission JRC, SARAH3), retrieved August 2026 for a representative point in Wigtownshire (54.8844, -4.7467), 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 Wigtownshire
On NESO's licence-area map, the middle of Wigtownshire falls in South and Central Scotland, which SP Energy Networks operates, and so do all the towns we cover in the county.
Most home systems stay within 3.68kW per phase of inverter output, which puts them on G98, a notification to SP Energy Networks within 28 days of switch-on. Panel count does not decide it; the inverter and any battery do.
A bigger inverter or battery output needs a G99 application in advance. Ofgem's guaranteed standard for a low voltage generation connection quotation is 45 working days, with £80 paid for each working day late, and it binds SP Energy Networks as it does every network operator.
Sources: NESO DNO licence areas (3 May 2024); Ofgem, Distributed Generation Standards Direction guidance, checked 27 September 2026. G98 vs G99, explained.

Beyond the panels: heating and car charging in Wigtownshire
A heat pump in Wigtownshire
A heat pump does most of its work from November to February. Over those four months, 12 panels in Wigtownshire make about 850 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.
Scottish homes apply through Home Energy Scotland rather than the Boiler Upgrade Scheme: up to £7,500 in grant for a heat pump, up to £7,500 more as an optional interest-free loan, and a £1,500 uplift for rural and island homes (checked 28 September 2026).
Charging an EV in Wigtownshire
From April to September, 72% of a Wigtownshire roof's yearly output arrives, peaking at about 850 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.
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 in Wigtownshire: your questions answered
What does a solar panel system produce in Wigtownshire?
Each kWp of panels in Wigtownshire makes 967 kWh a year on PVGIS figures, so a typical 12-panel system produces around 6,150 kWh, from about 150 kWh in December up to 850 kWh in May.
What would 12 solar panels cost in Wigtownshire?
£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 Wigtownshire differs is output: about 6,150 kWh a year from that system.
Would a system in Wigtownshire need approval from the network operator?
Wigtownshire is on SP Energy Networks' network (South and Central Scotland licence area). Systems up to 3.68kW per phase of inverter output follow G98: SP Energy Networks is notified within 28 days of commissioning, with no approval needed first. Anything larger needs a G99 application before installation. Ofgem's guaranteed standard for a low voltage generation connection quotation is 45 working days, with £80 paid for each working day late, and it binds SP Energy Networks as it does every network operator. Our G98 vs G99 guide explains both routes.
How much would export pay on a system in Wigtownshire?
It is exported. With typical use and no battery, about 5,213 kWh of the 6,150 kWh a 12-panel system makes in Wigtownshire goes to the grid, around £626 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 Wigtownshire in winter?
It works, but the year is lopsided. 72% of a Wigtownshire roof's output lands between April and September; the four months from November to February give about 850 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
Towns we cover in Wigtownshire
One Wigtownshire town has its own page so far, with a yield worked out for its own centroid.
Nearby in Scotland
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Reading for Wigtownshire homeowners
The same guidance we would talk through on your call, written down and sourced.
What a solar service costs, and how often you actually need one
MCS advises a contractor visit at year 10 on a privately owned home. Most plans sell one a year.
Read the guide →GivEnergy in administration: what owners should do now
The sourced timeline, the warranty position, and the owner's checklist for this month.
Read the guide →Home EV charger types and speeds, explained properly
Granny cable, 7kW wall unit or 22kW three phase. What each adds per hour, and which you need.
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 →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.