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Solar panel cost in Dumfries and Galloway (DG14)

See realistic solar installation costs, savings and payback for DG14 (Dumfries and Galloway) in under a minute using official UK data. Start with the calculator, then get a no-obligation quote from an MCS-certified installer. You can also ask the SolarByPostcode assistant to sanity-check your roof, bills and plans.

Solar Calculator

Change the settings below to see how costs and savings work for your situation.

System Size

Roof Direction

Battery Storage

Export Value

Your Numbers

Break-even
11.5 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£846
What you save every year
Profit Over 25 Years
£11,383
After paying itself off, you're this much ahead

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How we calculate this

Solar generation: Based on typical south-facing roof at 35° angle. We account for weather, dirt, and system losses (14%).

How much you'll use directly:

  • Without battery: You'll use about 40% of what you generate. The rest gets sold back to the grid.
  • With 5 kWh battery: You'll use about 70% (battery stores extra for evening use).
  • With 10 kWh battery: You'll use about 75% (more storage means less exported).
  • Panel-only payback: The official cost per kW is lower above 4 kW, so a 5–6 kW system can pay back a little faster than a 3–4 kW system on otherwise identical assumptions.
  • Battery & payback: Batteries raise self-use and cut bills, but added hardware cost often lengthens break-even at typical UK rates.
  • When a battery can still make sense:
    • Evening-heavy usage patterns
    • Time-of-use tariffs / cheap night rates
    • Low export rate vs. high unit rate
    • Heat pump or EV charging synergy
    • Optional backup/resilience (system-dependent)
    • Lower evening-hour CO₂ vs. grid

Panel costs: Uses March 2026 TIC mean installation costs: £1,827/kW up to 4 kW and £1,628/kW above 4 kW.

Other costs: Battery prices are modelled at £700 per kWh. Export tariffs vary by supplier (usually 5–15p per kWh).

Grid connection: Systems up to about 3.7 kW typically need just a notification (G98). Larger systems may need permission (G99).

These are typical values based on average usage patterns. Your actual results will vary based on your roof, shading, and how you use electricity.

Your area in context

In Southern Scotland, the current unit rate is 25.85p/kWh with a 64.17p/day standing charge. Your postcode’s south-facing sunshine yield is 863 kWh/kW — 13 above the regional median (850).

Read the full story

A typical roof here lands around 6.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 863 kWh per year on a south-facing roof. We value self-used electricity at 25.9p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.9p/kWh
Standing charge
64.2p/day
Sunshine yield (south)
863 kWh/kW
Export price (baseline)
10p/kWh

Browse the scenarios below. Each battery size has its own expand — open the one that matches your plan (or just explore). For each system size (2–8 kW) we show annual output, how much you use directly, what gets exported, annual benefit, upfront cost, break-even, and a 20-year net. Negative numbers are possible — that’s the honest trade-off when adding more battery than your usage profile justifies.

No battery 5 kW example → Annual benefit: £705, Upfront: £8,139, Break-even: 11.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1726 kWh 690 kWh 1035 kWh £178 £104 £282 £3,256 11.5 yrs £2,384
3 kW 2589 kWh 1035 kWh 1553 kWh £268 £155 £423 £4,883 11.5 yrs £3,577
4 kW 3452 kWh 1381 kWh 2071 kWh £357 £207 £564 £6,511 11.5 yrs £4,769
5 kW 4314 kWh 1726 kWh 2589 kWh £446 £259 £705 £8,139 11.5 yrs £5,961
6 kW 5177 kWh 2071 kWh 3106 kWh £535 £311 £846 £9,767 11.5 yrs £7,153
7 kW 6040 kWh 2416 kWh 3624 kWh £625 £362 £987 £11,394 11.5 yrs £8,345
8 kW 6903 kWh 2761 kWh 4142 kWh £714 £414 £1,128 £13,022 11.5 yrs £9,538

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £842, Upfront: £10,239, Break-even: 12.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1726 kWh 1035 kWh 690 kWh £268 £69 £337 £5,356 15.9 yrs £1,379
3 kW 2589 kWh 1553 kWh 1035 kWh £402 £104 £505 £6,983 13.8 yrs £3,118
4 kW 3452 kWh 2071 kWh 1381 kWh £535 £138 £673 £8,611 12.8 yrs £4,857
5 kW 4314 kWh 2589 kWh 1726 kWh £669 £173 £842 £10,239 12.2 yrs £6,596
6 kW 5177 kWh 3106 kWh 2071 kWh £803 £207 £1,010 £11,867 11.7 yrs £8,336
7 kW 6040 kWh 3624 kWh 2416 kWh £937 £242 £1,178 £13,494 11.5 yrs £10,075
8 kW 6903 kWh 4142 kWh 2761 kWh £1,071 £276 £1,347 £15,122 11.2 yrs £11,814

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £910, Upfront: £11,639, Break-even: 12.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1726 kWh 1208 kWh 518 kWh £312 £52 £364 £6,756 18.6 yrs £526
3 kW 2589 kWh 1812 kWh 777 kWh £468 £78 £546 £8,383 15.4 yrs £2,538
4 kW 3452 kWh 2416 kWh 1035 kWh £625 £104 £728 £10,011 13.7 yrs £4,551
5 kW 4314 kWh 3020 kWh 1294 kWh £781 £129 £910 £11,639 12.8 yrs £6,564
6 kW 5177 kWh 3624 kWh 1553 kWh £937 £155 £1,092 £13,267 12.1 yrs £8,577
7 kW 6040 kWh 4228 kWh 1812 kWh £1,093 £181 £1,274 £14,894 11.7 yrs £10,590
8 kW 6903 kWh 4832 kWh 2071 kWh £1,249 £207 £1,456 £16,522 11.3 yrs £12,603

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £931, Upfront: £13,389, Break-even: 14.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1726 kWh 1260 kWh 466 kWh £326 £47 £372 £8,506 22.8 yrs £-1,060
3 kW 2589 kWh 1890 kWh 699 kWh £489 £70 £558 £10,133 18.1 yrs £1,035
4 kW 3452 kWh 2520 kWh 932 kWh £651 £93 £745 £11,761 15.8 yrs £3,130
5 kW 4314 kWh 3150 kWh 1165 kWh £814 £116 £931 £13,389 14.4 yrs £5,224
6 kW 5177 kWh 3780 kWh 1398 kWh £977 £140 £1,117 £15,017 13.4 yrs £7,319
7 kW 6040 kWh 4409 kWh 1631 kWh £1,140 £163 £1,303 £16,644 12.8 yrs £9,414
8 kW 6903 kWh 5039 kWh 1864 kWh £1,303 £186 £1,489 £18,272 12.3 yrs £11,509

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £944, Upfront: £15,139, Break-even: 16.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1726 kWh 1294 kWh 431 kWh £335 £43 £378 £10,256 27.2 yrs £-2,701
3 kW 2589 kWh 1942 kWh 647 kWh £502 £65 £567 £11,883 21.0 yrs £-551
4 kW 3452 kWh 2589 kWh 863 kWh £669 £86 £755 £13,511 17.9 yrs £1,598
5 kW 4314 kWh 3236 kWh 1079 kWh £836 £108 £944 £15,139 16.0 yrs £3,748
6 kW 5177 kWh 3883 kWh 1294 kWh £1,004 £129 £1,133 £16,767 14.8 yrs £5,898
7 kW 6040 kWh 4530 kWh 1510 kWh £1,171 £151 £1,322 £18,394 13.9 yrs £8,047
8 kW 6903 kWh 5177 kWh 1726 kWh £1,338 £173 £1,511 £20,022 13.3 yrs £10,197

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £958, Upfront: £17,589, Break-even: 18.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1726 kWh 1329 kWh 397 kWh £344 £40 £383 £12,706 33.2 yrs £-5,041
3 kW 2589 kWh 1993 kWh 595 kWh £515 £60 £575 £14,333 24.9 yrs £-2,837
4 kW 3452 kWh 2658 kWh 794 kWh £687 £79 £766 £15,961 20.8 yrs £-633
5 kW 4314 kWh 3322 kWh 992 kWh £859 £99 £958 £17,589 18.4 yrs £1,571
6 kW 5177 kWh 3987 kWh 1191 kWh £1,031 £119 £1,150 £19,217 16.7 yrs £3,776
7 kW 6040 kWh 4651 kWh 1389 kWh £1,202 £139 £1,341 £20,844 15.5 yrs £5,980
8 kW 6903 kWh 5315 kWh 1588 kWh £1,374 £159 £1,533 £22,472 14.7 yrs £8,184

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

Figures are illustrative and use the same method as the calculator above. For exact results, adjust your roof direction, tariff, and usage in the calculator.

Before you request quotes in Dumfries and Galloway

Use the numbers above to sanity-check installer quotes. The main things to compare are system size, battery assumptions, payback claims, MCS certification, DNO paperwork and export assumptions.

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Insights for DG14

Figures below are tailored to DG14 — click through for full league tables.

Solar Payback Index Rank #2281 of 2996
11.5 years (UK avg 10.8 years)
~£846 /yr • £9,767 upfront
Standing-Charge Drag Rank #1826 of 2996
27.7% (UK avg 26.6%) drag on savings
£234 fixed • ~£846 /yr value
Aspect Penalty View ranking →
East −19.7% West −20.2%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in DG14

Monthly generation per kilowatt of solar panels

kWh 25 Jan 42 Feb 73 Mar 104 Apr 117 May 111 Jun 111 Jul 96 Aug 76 Sep 52 Oct 34 Nov 21 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 41.3% of an average month (Dec–Feb)

Best / worst month: May / Dec

These figures show output per kilowatt (kW) of panels installed. In winter, a 1 kW system here produces about 30 kWh per month; the average month produces around 72 kWh. So a typical 4 kW home system would generate roughly 119 kWh in winter, or 288 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.85p/kWh
Daily Fixed Charge
64.17p/day
Local Sunshine
863kWh/kW
A 1 kW system generates ~863 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
6.0kW
For houses & bungalows in this area

Local Property Data

Property Types

No EPC data available for this outcode

Coverage

Dumfries and Galloway (99%)|Scottish Borders (1%)

Areas Covered

Annandale East and Eskdale, Hawick and Hermitage, Annandale South

Data Sources & Assumptions

Solar yield: PVGIS (EU Joint Research Centre), January 2025 data

Electricity rates: Ofgem price cap, Q3 2026

Installation costs: DESNZ/MCS data, March 2026 (TIC)

Property data: EPC open data (Open Government Licence), aggregated

All estimates are typical values. Actual results vary based on your specific situation, roof characteristics, and usage patterns.

Compare nearby areas

Nearby in Southern Scotland

DG13 (Dumfries and Galloway)
≈8.4 km away
Local sunshine: ~841 kWh/kWp · -3% vs DG14
DG16 (Dumfries and Galloway)
≈11.6 km away
Local sunshine: ~900 kWh/kWp · +4% vs DG14
DG12 (Dumfries and Galloway)
≈21.5 km away
Local sunshine: ~906 kWh/kWp · +5% vs DG14
DG11 (Dumfries and Galloway)
≈25.5 km away
Local sunshine: ~875 kWh/kWp · +1% vs DG14
TD9 (Scottish Borders)
≈39.7 km away
Local sunshine: ~843 kWh/kWp · -2% vs DG14
DG1 (Dumfries and Galloway)
≈40.4 km away
Local sunshine: ~881 kWh/kWp · +2% vs DG14

Similar sunshine across the UK

AB53 (Aberdeenshire)
~862 kWh/kWp · -0% vs DG14
SA20 (Carmarthenshire)
~863 kWh/kWp · +0% vs DG14
BT69 (Mid Ulster)
~863 kWh/kWp · +0% vs DG14