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Solar panel cost in Scottish Borders (TD13)

See realistic solar installation costs, savings and payback for TD13 (Scottish Borders) 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
11.0 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£884
What you save every year
Profit Over 25 Years
£12,341
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 902 kWh/kW — 52 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 902 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)
902 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: £737, Upfront: £8,139, Break-even: 11.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1804 kWh 722 kWh 1082 kWh £187 £108 £295 £3,256 11.0 yrs £2,640
3 kW 2706 kWh 1082 kWh 1624 kWh £280 £162 £442 £4,883 11.0 yrs £3,960
4 kW 3608 kWh 1443 kWh 2165 kWh £373 £216 £590 £6,511 11.0 yrs £5,280
5 kW 4510 kWh 1804 kWh 2706 kWh £466 £271 £737 £8,139 11.0 yrs £6,600
6 kW 5412 kWh 2165 kWh 3247 kWh £560 £325 £884 £9,767 11.0 yrs £7,920
7 kW 6314 kWh 2526 kWh 3788 kWh £653 £379 £1,032 £11,394 11.0 yrs £9,240
8 kW 7216 kWh 2886 kWh 4330 kWh £746 £433 £1,179 £13,022 11.0 yrs £10,560

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: £880, Upfront: £10,239, Break-even: 11.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1804 kWh 1082 kWh 722 kWh £280 £72 £352 £5,356 15.2 yrs £1,684
3 kW 2706 kWh 1624 kWh 1082 kWh £420 £108 £528 £6,983 13.2 yrs £3,576
4 kW 3608 kWh 2165 kWh 1443 kWh £560 £144 £704 £8,611 12.2 yrs £5,467
5 kW 4510 kWh 2706 kWh 1804 kWh £700 £180 £880 £10,239 11.6 yrs £7,359
6 kW 5412 kWh 3247 kWh 2165 kWh £839 £216 £1,056 £11,867 11.2 yrs £9,251
7 kW 6314 kWh 3788 kWh 2526 kWh £979 £253 £1,232 £13,494 11.0 yrs £11,143
8 kW 7216 kWh 4330 kWh 2886 kWh £1,119 £289 £1,408 £15,122 10.7 yrs £13,035

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: £951, Upfront: £11,639, 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 1804 kWh 1263 kWh 541 kWh £326 £54 £381 £6,756 17.8 yrs £856
3 kW 2706 kWh 1894 kWh 812 kWh £490 £81 £571 £8,383 14.7 yrs £3,033
4 kW 3608 kWh 2526 kWh 1082 kWh £653 £108 £761 £10,011 13.2 yrs £5,211
5 kW 4510 kWh 3157 kWh 1353 kWh £816 £135 £951 £11,639 12.2 yrs £7,389
6 kW 5412 kWh 3788 kWh 1624 kWh £979 £162 £1,142 £13,267 11.6 yrs £9,567
7 kW 6314 kWh 4420 kWh 1894 kWh £1,143 £189 £1,332 £14,894 11.2 yrs £11,744
8 kW 7216 kWh 5051 kWh 2165 kWh £1,306 £216 £1,522 £16,522 10.9 yrs £13,922

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: £973, Upfront: £13,389, Break-even: 13.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1804 kWh 1317 kWh 487 kWh £340 £49 £389 £8,506 21.9 yrs £-723
3 kW 2706 kWh 1975 kWh 731 kWh £511 £73 £584 £10,133 17.4 yrs £1,541
4 kW 3608 kWh 2634 kWh 974 kWh £681 £97 £778 £11,761 15.1 yrs £3,804
5 kW 4510 kWh 3292 kWh 1218 kWh £851 £122 £973 £13,389 13.8 yrs £6,068
6 kW 5412 kWh 3951 kWh 1461 kWh £1,021 £146 £1,167 £15,017 12.9 yrs £8,331
7 kW 6314 kWh 4609 kWh 1705 kWh £1,191 £170 £1,362 £16,644 12.2 yrs £10,595
8 kW 7216 kWh 5268 kWh 1948 kWh £1,362 £195 £1,557 £18,272 11.7 yrs £12,858

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: £987, Upfront: £15,139, Break-even: 15.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1804 kWh 1353 kWh 451 kWh £350 £45 £395 £10,256 26.0 yrs £-2,359
3 kW 2706 kWh 2030 kWh 676 kWh £525 £68 £592 £11,883 20.1 yrs £-38
4 kW 3608 kWh 2706 kWh 902 kWh £700 £90 £790 £13,511 17.1 yrs £2,283
5 kW 4510 kWh 3382 kWh 1128 kWh £874 £113 £987 £15,139 15.3 yrs £4,604
6 kW 5412 kWh 4059 kWh 1353 kWh £1,049 £135 £1,185 £16,767 14.2 yrs £6,924
7 kW 6314 kWh 4736 kWh 1578 kWh £1,224 £158 £1,382 £18,394 13.3 yrs £9,245
8 kW 7216 kWh 5412 kWh 1804 kWh £1,399 £180 £1,579 £20,022 12.7 yrs £11,566

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: £1,001, Upfront: £17,589, Break-even: 17.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1804 kWh 1389 kWh 415 kWh £359 £41 £401 £12,706 31.7 yrs £-4,694
3 kW 2706 kWh 2084 kWh 622 kWh £539 £62 £601 £14,333 23.9 yrs £-2,316
4 kW 3608 kWh 2778 kWh 830 kWh £718 £83 £801 £15,961 19.9 yrs £62
5 kW 4510 kWh 3473 kWh 1037 kWh £898 £104 £1,001 £17,589 17.6 yrs £2,440
6 kW 5412 kWh 4167 kWh 1245 kWh £1,077 £124 £1,202 £19,217 16.0 yrs £4,818
7 kW 6314 kWh 4862 kWh 1452 kWh £1,257 £145 £1,402 £20,844 14.9 yrs £7,196
8 kW 7216 kWh 5556 kWh 1660 kWh £1,436 £166 £1,602 £22,472 14.0 yrs £9,573

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 Scottish Borders

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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Check what MCS certification means

Understand DNO, G98 and G99 export limits

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Insights for TD13

Figures below are tailored to TD13 — click through for full league tables.

Solar Payback Index Rank #2030 of 2996
11.0 years (UK avg 10.8 years)
~£884 /yr • £9,767 upfront
Standing-Charge Drag Rank #1669 of 2996
26.5% (UK avg 26.6%) drag on savings
£234 fixed • ~£884 /yr value
Aspect Penalty View ranking →
East −22.3% West −21.6%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in TD13

Monthly generation per kilowatt of solar panels

kWh 26 Jan 46 Feb 80 Mar 109 Apr 121 May 113 Jun 114 Jul 102 Aug 82 Sep 56 Oct 34 Nov 18 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 40.2% 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 75 kWh. So a typical 4 kW home system would generate roughly 121 kWh in winter, or 301 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.85p/kWh
Daily Fixed Charge
64.17p/day
Local Sunshine
902kWh/kW
A 1 kW system generates ~902 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

Scottish Borders (70%)|East Lothian (30%)

Areas Covered

East Berwickshire, Dunbar and East Linton, Mid Berwickshire

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

EH42 (East Lothian)
≈12.0 km away
Local sunshine: ~913 kWh/kWp · +1% vs TD13
TD11 (Scottish Borders)
≈17.2 km away
Local sunshine: ~933 kWh/kWp · +3% vs TD13
TD14 (Scottish Borders)
≈17.9 km away
Local sunshine: ~900 kWh/kWp · -0% vs TD13
EH40 (East Lothian)
≈19.3 km away
Local sunshine: ~932 kWh/kWp · +3% vs TD13
TD10 (Scottish Borders)
≈25.6 km away
Local sunshine: ~913 kWh/kWp · +1% vs TD13
EH41 (East Lothian)
≈26.0 km away
Local sunshine: ~908 kWh/kWp · +1% vs TD13

Similar sunshine across the UK

WA13 (Warrington)
~902 kWh/kWp · +0% vs TD13
NE47 (Northumberland)
~902 kWh/kWp · +0% vs TD13
TS15 (Stockton-on-Tees)
~902 kWh/kWp · +0% vs TD13