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Solar panel cost in Highland (KW1)

See realistic solar installation costs, savings and payback for KW1 (Highland) 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
12.1 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£675
What you save every year
Profit Over 25 Years
£8,744
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 Northern Scotland, the current unit rate is 26.42p/kWh with a 57.55p/day standing charge. Your postcode’s south-facing sunshine yield is 815 kWh/kW — 0 above the regional median (815).

Read the full story

A typical roof here lands around 5.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 815 kWh per year on a south-facing roof. We value self-used electricity at 26.4p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
26.4p/kWh
Standing charge
57.5p/day
Sunshine yield (south)
815 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: £675, Upfront: £8,139, Break-even: 12.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1630 kWh 652 kWh 978 kWh £172 £98 £270 £3,256 12.1 yrs £2,147
3 kW 2446 kWh 978 kWh 1467 kWh £258 £147 £405 £4,883 12.1 yrs £3,220
4 kW 3261 kWh 1304 kWh 1956 kWh £345 £196 £540 £6,511 12.1 yrs £4,294
5 kW 4076 kWh 1630 kWh 2446 kWh £431 £245 £675 £8,139 12.1 yrs £5,367
6 kW 4891 kWh 1956 kWh 2935 kWh £517 £293 £810 £9,767 12.1 yrs £6,441
7 kW 5706 kWh 2283 kWh 3424 kWh £603 £342 £945 £11,394 12.1 yrs £7,514
8 kW 6522 kWh 2609 kWh 3913 kWh £689 £391 £1,080 £13,022 12.1 yrs £8,588

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: £809, Upfront: £10,239, Break-even: 12.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1630 kWh 978 kWh 652 kWh £258 £65 £324 £5,356 16.5 yrs £1,118
3 kW 2446 kWh 1467 kWh 978 kWh £388 £98 £486 £6,983 14.4 yrs £2,727
4 kW 3261 kWh 1956 kWh 1304 kWh £517 £130 £647 £8,611 13.3 yrs £4,336
5 kW 4076 kWh 2446 kWh 1630 kWh £646 £163 £809 £10,239 12.7 yrs £5,945
6 kW 4891 kWh 2935 kWh 1956 kWh £775 £196 £971 £11,867 12.2 yrs £7,553
7 kW 5706 kWh 3424 kWh 2283 kWh £905 £228 £1,133 £13,494 11.9 yrs £9,162
8 kW 6522 kWh 3913 kWh 2609 kWh £1,034 £261 £1,295 £15,122 11.7 yrs £10,771

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: £876, Upfront: £11,639, Break-even: 13.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1630 kWh 1141 kWh 489 kWh £302 £49 £350 £6,756 19.3 yrs £253
3 kW 2446 kWh 1712 kWh 734 kWh £452 £73 £526 £8,383 15.9 yrs £2,130
4 kW 3261 kWh 2283 kWh 978 kWh £603 £98 £701 £10,011 14.3 yrs £4,006
5 kW 4076 kWh 2853 kWh 1223 kWh £754 £122 £876 £11,639 13.3 yrs £5,883
6 kW 4891 kWh 3424 kWh 1467 kWh £905 £147 £1,051 £13,267 12.6 yrs £7,760
7 kW 5706 kWh 3994 kWh 1712 kWh £1,055 £171 £1,227 £14,894 12.1 yrs £9,636
8 kW 6522 kWh 4565 kWh 1956 kWh £1,206 £196 £1,402 £16,522 11.8 yrs £11,513

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: £896, Upfront: £13,389, Break-even: 14.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1630 kWh 1190 kWh 440 kWh £314 £44 £358 £8,506 23.7 yrs £-1,336
3 kW 2446 kWh 1785 kWh 660 kWh £472 £66 £538 £10,133 18.8 yrs £621
4 kW 3261 kWh 2380 kWh 880 kWh £629 £88 £717 £11,761 16.4 yrs £2,578
5 kW 4076 kWh 2975 kWh 1101 kWh £786 £110 £896 £13,389 14.9 yrs £4,535
6 kW 4891 kWh 3571 kWh 1321 kWh £943 £132 £1,075 £15,017 14.0 yrs £6,492
7 kW 5706 kWh 4166 kWh 1541 kWh £1,101 £154 £1,255 £16,644 13.3 yrs £8,449
8 kW 6522 kWh 4761 kWh 1761 kWh £1,258 £176 £1,434 £18,272 12.7 yrs £10,405

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: £910, Upfront: £15,139, Break-even: 16.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1630 kWh 1223 kWh 408 kWh £323 £41 £364 £10,256 28.2 yrs £-2,979
3 kW 2446 kWh 1834 kWh 611 kWh £485 £61 £546 £11,883 21.8 yrs £-969
4 kW 3261 kWh 2446 kWh 815 kWh £646 £82 £728 £13,511 18.6 yrs £1,042
5 kW 4076 kWh 3057 kWh 1019 kWh £808 £102 £910 £15,139 16.6 yrs £3,052
6 kW 4891 kWh 3668 kWh 1223 kWh £969 £122 £1,091 £16,767 15.4 yrs £5,063
7 kW 5706 kWh 4280 kWh 1427 kWh £1,131 £143 £1,273 £18,394 14.4 yrs £7,073
8 kW 6522 kWh 4891 kWh 1630 kWh £1,292 £163 £1,455 £20,022 13.8 yrs £9,084

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: £923, Upfront: £17,589, Break-even: 19.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1630 kWh 1255 kWh 375 kWh £332 £37 £369 £12,706 34.4 yrs £-5,322
3 kW 2446 kWh 1883 kWh 562 kWh £498 £56 £554 £14,333 25.9 yrs £-3,258
4 kW 3261 kWh 2511 kWh 750 kWh £663 £75 £738 £15,961 21.6 yrs £-1,194
5 kW 4076 kWh 3139 kWh 937 kWh £829 £94 £923 £17,589 19.1 yrs £870
6 kW 4891 kWh 3766 kWh 1125 kWh £995 £112 £1,108 £19,217 17.4 yrs £2,934
7 kW 5706 kWh 4394 kWh 1312 kWh £1,161 £131 £1,292 £20,844 16.1 yrs £4,998
8 kW 6522 kWh 5022 kWh 1500 kWh £1,327 £150 £1,477 £22,472 15.2 yrs £7,062

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 Highland

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 KW1

Figures below are tailored to KW1 — click through for full league tables.

Solar Payback Index Rank #2871 of 2996
13.5 years (UK avg 10.8 years)
~£540 /yr • £7,307 upfront
Standing-Charge Drag Rank #2783 of 2996
38.9% (UK avg 26.6%) drag on savings
£210 fixed • ~£540 /yr value
Aspect Penalty View ranking →
East −21.1% West −22.8%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in KW1

Monthly generation per kilowatt of solar panels

kWh 19 Jan 38 Feb 70 Mar 100 Apr 118 May 111 Jun 107 Jul 94 Aug 72 Sep 46 Oct 24 Nov 15 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 35.2% 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 24 kWh per month; the average month produces around 68 kWh. So a typical 4 kW home system would generate roughly 96 kWh in winter, or 272 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
57.55p/day
Local Sunshine
815kWh/kW
A 1 kW system generates ~815 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
5.0kW
For houses & bungalows in this area

Local Property Data

Property Types

No EPC data available for this outcode

Coverage

Highland (100%)

Areas Covered

Wick and East Caithness, Thurso and Northwest Caithness

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 Northern Scotland

KW2 (Highland)
≈11.3 km away
Local sunshine: ~832 kWh/kWp · +2% vs KW1
KW3 (Highland)
≈19.2 km away
Local sunshine: ~838 kWh/kWp · +3% vs KW1
KW12 (Highland)
≈24.6 km away
Local sunshine: ~828 kWh/kWp · +2% vs KW1
KW5 (Highland)
≈24.9 km away
Local sunshine: ~828 kWh/kWp · +2% vs KW1
KW6 (Highland)
≈29.6 km away
Local sunshine: ~814 kWh/kWp · -0% vs KW1
KW14 (Highland)
≈30.2 km away
Local sunshine: ~813 kWh/kWp · -0% vs KW1

Similar sunshine across the UK

OL3 (Oldham)
~815 kWh/kWp · -0% vs KW1
KA4 (East Ayrshire)
~814 kWh/kWp · -0% vs KW1
LA10 (Westmorland and Furness)
~816 kWh/kWp · +0% vs KW1