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Solar panel cost in Highland (KW11)

See realistic solar installation costs, savings and payback for KW11 (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
12.8 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£638
What you save every year
Profit Over 25 Years
£7,799
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 770 kWh/kW — 45 below 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 770 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)
770 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: £638, Upfront: £8,139, 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 1539 kWh 616 kWh 923 kWh £163 £92 £255 £3,256 12.8 yrs £1,845
3 kW 2309 kWh 923 kWh 1385 kWh £244 £139 £383 £4,883 12.8 yrs £2,767
4 kW 3078 kWh 1231 kWh 1847 kWh £325 £185 £510 £6,511 12.8 yrs £3,689
5 kW 3848 kWh 1539 kWh 2309 kWh £407 £231 £638 £8,139 12.8 yrs £4,612
6 kW 4617 kWh 1847 kWh 2770 kWh £488 £277 £765 £9,767 12.8 yrs £5,534
7 kW 5387 kWh 2155 kWh 3232 kWh £569 £323 £893 £11,394 12.8 yrs £6,456
8 kW 6157 kWh 2463 kWh 3694 kWh £651 £369 £1,020 £13,022 12.8 yrs £7,379

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: £764, Upfront: £10,239, Break-even: 13.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1539 kWh 923 kWh 616 kWh £244 £62 £306 £5,356 17.5 yrs £756
3 kW 2309 kWh 1385 kWh 923 kWh £366 £92 £458 £6,983 15.2 yrs £2,183
4 kW 3078 kWh 1847 kWh 1231 kWh £488 £123 £611 £8,611 14.1 yrs £3,611
5 kW 3848 kWh 2309 kWh 1539 kWh £610 £154 £764 £10,239 13.4 yrs £5,039
6 kW 4617 kWh 2770 kWh 1847 kWh £732 £185 £917 £11,867 12.9 yrs £6,467
7 kW 5387 kWh 3232 kWh 2155 kWh £854 £215 £1,069 £13,494 12.6 yrs £7,894
8 kW 6157 kWh 3694 kWh 2463 kWh £976 £246 £1,222 £15,122 12.4 yrs £9,322

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: £827, Upfront: £11,639, Break-even: 14.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1539 kWh 1077 kWh 462 kWh £285 £46 £331 £6,756 20.4 yrs £-139
3 kW 2309 kWh 1616 kWh 693 kWh £427 £69 £496 £8,383 16.9 yrs £1,542
4 kW 3078 kWh 2155 kWh 923 kWh £569 £92 £662 £10,011 15.1 yrs £3,222
5 kW 3848 kWh 2694 kWh 1154 kWh £712 £115 £827 £11,639 14.1 yrs £4,903
6 kW 4617 kWh 3232 kWh 1385 kWh £854 £139 £992 £13,267 13.4 yrs £6,583
7 kW 5387 kWh 3771 kWh 1616 kWh £996 £162 £1,158 £14,894 12.9 yrs £8,264
8 kW 6157 kWh 4310 kWh 1847 kWh £1,139 £185 £1,323 £16,522 12.5 yrs £9,944

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: £846, Upfront: £13,389, Break-even: 15.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1539 kWh 1124 kWh 416 kWh £297 £42 £338 £8,506 25.1 yrs £-1,737
3 kW 2309 kWh 1685 kWh 623 kWh £445 £62 £508 £10,133 20.0 yrs £19
4 kW 3078 kWh 2247 kWh 831 kWh £594 £83 £677 £11,761 17.4 yrs £1,775
5 kW 3848 kWh 2809 kWh 1039 kWh £742 £104 £846 £13,389 15.8 yrs £3,532
6 kW 4617 kWh 3371 kWh 1247 kWh £891 £125 £1,015 £15,017 14.8 yrs £5,288
7 kW 5387 kWh 3933 kWh 1455 kWh £1,039 £145 £1,184 £16,644 14.1 yrs £7,044
8 kW 6157 kWh 4494 kWh 1662 kWh £1,187 £166 £1,354 £18,272 13.5 yrs £8,801

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: £859, Upfront: £15,139, 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 1539 kWh 1154 kWh 385 kWh £305 £38 £343 £10,256 29.9 yrs £-3,386
3 kW 2309 kWh 1732 kWh 577 kWh £457 £58 £515 £11,883 23.1 yrs £-1,579
4 kW 3078 kWh 2309 kWh 770 kWh £610 £77 £687 £13,511 19.7 yrs £228
5 kW 3848 kWh 2886 kWh 962 kWh £762 £96 £859 £15,139 17.6 yrs £2,034
6 kW 4617 kWh 3463 kWh 1154 kWh £915 £115 £1,030 £16,767 16.3 yrs £3,841
7 kW 5387 kWh 4040 kWh 1347 kWh £1,067 £135 £1,202 £18,394 15.3 yrs £5,648
8 kW 6157 kWh 4617 kWh 1539 kWh £1,220 £154 £1,374 £20,022 14.6 yrs £7,455

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: £871, Upfront: £17,589, Break-even: 20.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1539 kWh 1185 kWh 354 kWh £313 £35 £349 £12,706 36.5 yrs £-5,735
3 kW 2309 kWh 1778 kWh 531 kWh £470 £53 £523 £14,333 27.4 yrs £-3,878
4 kW 3078 kWh 2370 kWh 708 kWh £626 £71 £697 £15,961 22.9 yrs £-2,020
5 kW 3848 kWh 2963 kWh 885 kWh £783 £89 £871 £17,589 20.2 yrs £-163
6 kW 4617 kWh 3555 kWh 1062 kWh £939 £106 £1,046 £19,217 18.4 yrs £1,695
7 kW 5387 kWh 4148 kWh 1239 kWh £1,096 £124 £1,220 £20,844 17.1 yrs £3,552
8 kW 6157 kWh 4741 kWh 1416 kWh £1,252 £142 £1,394 £22,472 16.1 yrs £5,409

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 KW11

Figures below are tailored to KW11 — click through for full league tables.

Solar Payback Index Rank #2937 of 2996
14.3 years (UK avg 10.8 years)
~£510 /yr • £7,307 upfront
Standing-Charge Drag Rank #2926 of 2996
41.2% (UK avg 26.6%) drag on savings
£210 fixed • ~£510 /yr value
Aspect Penalty View ranking →
East −20.4% West −19.6%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in KW11

Monthly generation per kilowatt of solar panels

kWh 14 Jan 35 Feb 67 Mar 98 Apr 112 May 105 Jun 100 Jul 89 Aug 69 Sep 47 Oct 24 Nov 11 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 31.6% 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 20 kWh per month; the average month produces around 64 kWh. So a typical 4 kW home system would generate roughly 81 kWh in winter, or 257 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
57.55p/day
Local Sunshine
770kWh/kW
A 1 kW system generates ~770 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

North, West and Central Sutherland, East Sutherland and Edderton

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

KW13 (Highland)
≈23.8 km away
Local sunshine: ~780 kWh/kWp · +1% vs KW11
IV28 (Highland)
≈32.7 km away
Local sunshine: ~802 kWh/kWp · +4% vs KW11
KW8 (Highland)
≈35.1 km away
Local sunshine: ~823 kWh/kWp · +7% vs KW11
KW9 (Highland)
≈35.9 km away
Local sunshine: ~829 kWh/kWp · +8% vs KW11
IV27 (Highland)
≈36.5 km away
Local sunshine: ~770 kWh/kWp · +0% vs KW11
KW10 (Highland)
≈37.1 km away
Local sunshine: ~801 kWh/kWp · +4% vs KW11

Similar sunshine across the UK

CA12 (Cumberland)
~767 kWh/kWp · -0% vs KW11
PA14 (Inverclyde)
~772 kWh/kWp · +0% vs KW11
G84 (Argyll and Bute)
~766 kWh/kWp · -0% vs KW11