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Solar panel cost in Highland (KW2)

See realistic solar installation costs, savings and payback for KW2 (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
11.8 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£689
What you save every year
Profit Over 25 Years
£9,098
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 832 kWh/kW — 17 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 832 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)
832 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: £689, Upfront: £8,139, Break-even: 11.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1665 kWh 666 kWh 999 kWh £176 £100 £276 £3,256 11.8 yrs £2,260
3 kW 2497 kWh 999 kWh 1498 kWh £264 £150 £414 £4,883 11.8 yrs £3,390
4 kW 3329 kWh 1332 kWh 1998 kWh £352 £200 £552 £6,511 11.8 yrs £4,521
5 kW 4162 kWh 1665 kWh 2497 kWh £440 £250 £689 £8,139 11.8 yrs £5,651
6 kW 4994 kWh 1998 kWh 2996 kWh £528 £300 £827 £9,767 11.8 yrs £6,781
7 kW 5826 kWh 2330 kWh 3496 kWh £616 £350 £965 £11,394 11.8 yrs £7,911
8 kW 6658 kWh 2663 kWh 3995 kWh £704 £400 £1,103 £13,022 11.8 yrs £9,041

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: £826, Upfront: £10,239, Break-even: 12.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1665 kWh 999 kWh 666 kWh £264 £67 £330 £5,356 16.2 yrs £1,254
3 kW 2497 kWh 1498 kWh 999 kWh £396 £100 £496 £6,983 14.1 yrs £2,930
4 kW 3329 kWh 1998 kWh 1332 kWh £528 £133 £661 £8,611 13.0 yrs £4,607
5 kW 4162 kWh 2497 kWh 1665 kWh £660 £166 £826 £10,239 12.4 yrs £6,284
6 kW 4994 kWh 2996 kWh 1998 kWh £792 £200 £991 £11,867 12.0 yrs £7,961
7 kW 5826 kWh 3496 kWh 2330 kWh £924 £233 £1,157 £13,494 11.7 yrs £9,638
8 kW 6658 kWh 3995 kWh 2663 kWh £1,055 £266 £1,322 £15,122 11.4 yrs £11,314

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: £894, Upfront: £11,639, Break-even: 13.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1665 kWh 1165 kWh 499 kWh £308 £50 £358 £6,756 18.9 yrs £400
3 kW 2497 kWh 1748 kWh 749 kWh £462 £75 £537 £8,383 15.6 yrs £2,350
4 kW 3329 kWh 2330 kWh 999 kWh £616 £100 £716 £10,011 14.0 yrs £4,301
5 kW 4162 kWh 2913 kWh 1248 kWh £770 £125 £894 £11,639 13.0 yrs £6,251
6 kW 4994 kWh 3496 kWh 1498 kWh £924 £150 £1,073 £13,267 12.4 yrs £8,201
7 kW 5826 kWh 4078 kWh 1748 kWh £1,077 £175 £1,252 £14,894 11.9 yrs £10,151
8 kW 6658 kWh 4661 kWh 1998 kWh £1,231 £200 £1,431 £16,522 11.5 yrs £12,101

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: £915, Upfront: £13,389, Break-even: 14.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1665 kWh 1215 kWh 449 kWh £321 £45 £366 £8,506 23.2 yrs £-1,186
3 kW 2497 kWh 1823 kWh 674 kWh £482 £67 £549 £10,133 18.5 yrs £846
4 kW 3329 kWh 2430 kWh 899 kWh £642 £90 £732 £11,761 16.1 yrs £2,879
5 kW 4162 kWh 3038 kWh 1124 kWh £803 £112 £915 £13,389 14.6 yrs £4,911
6 kW 4994 kWh 3645 kWh 1348 kWh £963 £135 £1,098 £15,017 13.7 yrs £6,943
7 kW 5826 kWh 4253 kWh 1573 kWh £1,124 £157 £1,281 £16,644 13.0 yrs £8,975
8 kW 6658 kWh 4861 kWh 1798 kWh £1,284 £180 £1,464 £18,272 12.5 yrs £11,007

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: £929, Upfront: £15,139, Break-even: 16.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1665 kWh 1248 kWh 416 kWh £330 £42 £371 £10,256 27.6 yrs £-2,826
3 kW 2497 kWh 1873 kWh 624 kWh £495 £62 £557 £11,883 21.3 yrs £-740
4 kW 3329 kWh 2497 kWh 832 kWh £660 £83 £743 £13,511 18.2 yrs £1,347
5 kW 4162 kWh 3121 kWh 1040 kWh £825 £104 £929 £15,139 16.3 yrs £3,434
6 kW 4994 kWh 3745 kWh 1248 kWh £990 £125 £1,114 £16,767 15.0 yrs £5,521
7 kW 5826 kWh 4370 kWh 1457 kWh £1,154 £146 £1,300 £18,394 14.1 yrs £7,608
8 kW 6658 kWh 4994 kWh 1665 kWh £1,319 £166 £1,486 £20,022 13.5 yrs £9,694

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: £942, Upfront: £17,589, Break-even: 18.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1665 kWh 1282 kWh 383 kWh £339 £38 £377 £12,706 33.7 yrs £-5,167
3 kW 2497 kWh 1923 kWh 574 kWh £508 £57 £565 £14,333 25.4 yrs £-3,026
4 kW 3329 kWh 2563 kWh 766 kWh £677 £77 £754 £15,961 21.2 yrs £-884
5 kW 4162 kWh 3204 kWh 957 kWh £847 £96 £942 £17,589 18.7 yrs £1,257
6 kW 4994 kWh 3845 kWh 1149 kWh £1,016 £115 £1,131 £19,217 17.0 yrs £3,399
7 kW 5826 kWh 4486 kWh 1340 kWh £1,185 £134 £1,319 £20,844 15.8 yrs £5,540
8 kW 6658 kWh 5127 kWh 1531 kWh £1,355 £153 £1,508 £22,472 14.9 yrs £7,682

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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Understand DNO, G98 and G99 export limits

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Insights for KW2

Figures below are tailored to KW2 — click through for full league tables.

Solar Payback Index Rank #2845 of 2996
13.3 years (UK avg 10.8 years)
~£551 /yr • £7,307 upfront
Standing-Charge Drag Rank #2742 of 2996
38.1% (UK avg 26.6%) drag on savings
£210 fixed • ~£551 /yr value
Aspect Penalty View ranking →
East −21.3% West −22.6%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in KW2

Monthly generation per kilowatt of solar panels

kWh 20 Jan 39 Feb 72 Mar 103 Apr 119 May 112 Jun 108 Jul 96 Aug 75 Sep 48 Oct 25 Nov 16 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 36.2% 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 25 kWh per month; the average month produces around 69 kWh. So a typical 4 kW home system would generate roughly 100 kWh in winter, or 277 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
57.55p/day
Local Sunshine
832kWh/kW
A 1 kW system generates ~832 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

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

KW3 (Highland)
≈8.7 km away
Local sunshine: ~838 kWh/kWp · +1% vs KW2
KW1 (Highland)
≈11.3 km away
Local sunshine: ~815 kWh/kWp · -2% vs KW2
KW5 (Highland)
≈15.0 km away
Local sunshine: ~828 kWh/kWp · -1% vs KW2
KW6 (Highland)
≈19.5 km away
Local sunshine: ~814 kWh/kWp · -2% vs KW2
KW12 (Highland)
≈26.5 km away
Local sunshine: ~828 kWh/kWp · -1% vs KW2
KW7 (Highland)
≈26.9 km away
Local sunshine: ~819 kWh/kWp · -2% vs KW2

Similar sunshine across the UK

G61 (East Dunbartonshire)
~832 kWh/kWp · -0% vs KW2
BT78 (Fermanagh and Omagh)
~832 kWh/kWp · -0% vs KW2
G44 (Glasgow City)
~832 kWh/kWp · +0% vs KW2