Dumfriesshire, Scotland
Solar panels in Dumfriesshire, priced before anyone visits.
A 12-panel roof in Dumfriesshire makes about 5,440 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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Dumfriesshire's solar year
Dumfriesshire's best month is May, at 118.1 kWh per kWp; December manages 19.9. Over the year that comes to 855 kWh per kWp, 8% below the mean of our 85 county estimates.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 23.4 |
| February | 43.2 |
| March | 72.2 |
| April | 103 |
| May | 118 |
| June | 110 |
| July | 108 |
| August | 95.2 |
| September | 75.8 |
| October | 51.5 |
| November | 33.6 |
| December | 19.9 |
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: Dumfriesshire makes 855 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Dumfriesshire is 8% below it.
How Dumfriesshire compares
Dumfriesshire ranks 59th of the 85 counties we track for solar yield. Self use does the heavy lifting here: of the £787 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 Dumfriesshire'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
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Generation from PVGIS v5.2 (European Commission JRC, SARAH3), retrieved August 2026 for a representative point in Dumfriesshire (55.2082, -3.4752), 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 Dumfriesshire
SP Energy Networks is the distribution network operator (DNO) for Dumfriesshire, running its South and Central Scotland licence area.
G98 is the simple route. If the inverter, plus any battery, stays at or under 3.68kW per phase, SP Energy Networks only has to be told within 28 days after the system is commissioned.
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.
Heat pumps and EV charging in Dumfriesshire
A heat pump in Dumfriesshire
A heat pump does most of its work from November to February. Over those four months, 12 panels in Dumfriesshire make about 760 kWh, against 2,750 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 Dumfriesshire
From April to September, 71% of a Dumfriesshire roof's yearly output arrives, peaking at about 750 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.
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).
Installed prices, the same across Dumfriesshire
Every system is designed around your roof on the free call before anything is fitted.
Dumfriesshire solar questions
What does a solar panel system produce in Dumfriesshire?
Each kWp of panels in Dumfriesshire makes 855 kWh a year on PVGIS figures, so a typical 12-panel system produces around 5,440 kWh, from about 130 kWh in December up to 750 kWh in May.
How much are solar panels in Dumfriesshire?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Dumfriesshire before a battery. What Dumfriesshire changes is the return, about 5,440 kWh a year from that system, and your design call prices your actual roof.
Would a system in Dumfriesshire need approval from the network operator?
Dumfriesshire 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 can I earn from exporting solar in Dumfriesshire?
With typical use and no battery, a 12-panel system in Dumfriesshire exports about 4,501 kWh a year. At 12p per kWh that is roughly £540; 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 Dumfriesshire in winter?
It works, but the year is lopsided. 71% of a Dumfriesshire roof's output lands between April and September; the four months from November to February give about 760 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
Nearby in Scotland
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Reading for Dumfriesshire homeowners
The same guidance we would talk through on your call, written down and sourced.
How long does a solar inverter last, and when does replacing it make sense?
The one component you should expect to replace, and the decision tree when it goes.
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 →How solar aware EV charging actually works
The CT clamp, the surplus tracking and the 1.4kW floor that catches people out.
Read the guide →Sizing a heat pump: what a proper survey covers
Sized by calculation, not by rule of thumb. What the survey covers, and what guessing costs.
Read the guide →The price cap explained, and what it does to solar payback
The cap limits unit rates, not bills. That changes what solar payback means.
Read the guide →How to check an MCS certificate is genuine, before the deposit leaves your account
A logo proves nothing. Certification is business specific, technology specific and checkable.
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.