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Solar panel cost in Highland (PH40)

See realistic solar installation costs, savings and payback for PH40 (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
13.4 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£607
What you save every year
Profit Over 25 Years
£7,026
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 732 kWh/kW — 83 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 732 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)
732 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: £607, Upfront: £8,139, 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 1464 kWh 586 kWh 879 kWh £155 £88 £243 £3,256 13.4 yrs £1,597
3 kW 2197 kWh 879 kWh 1318 kWh £232 £132 £364 £4,883 13.4 yrs £2,396
4 kW 2929 kWh 1172 kWh 1757 kWh £310 £176 £485 £6,511 13.4 yrs £3,194
5 kW 3661 kWh 1464 kWh 2197 kWh £387 £220 £607 £8,139 13.4 yrs £3,993
6 kW 4394 kWh 1757 kWh 2636 kWh £464 £264 £728 £9,767 13.4 yrs £4,792
7 kW 5126 kWh 2050 kWh 3075 kWh £542 £308 £849 £11,394 13.4 yrs £5,590
8 kW 5858 kWh 2343 kWh 3515 kWh £619 £351 £971 £13,022 13.4 yrs £6,389

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: £727, Upfront: £10,239, 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 1464 kWh 879 kWh 586 kWh £232 £59 £291 £5,356 18.4 yrs £459
3 kW 2197 kWh 1318 kWh 879 kWh £348 £88 £436 £6,983 16.0 yrs £1,739
4 kW 2929 kWh 1757 kWh 1172 kWh £464 £117 £581 £8,611 14.8 yrs £3,018
5 kW 3661 kWh 2197 kWh 1464 kWh £580 £146 £727 £10,239 14.1 yrs £4,298
6 kW 4394 kWh 2636 kWh 1757 kWh £696 £176 £872 £11,867 13.6 yrs £5,577
7 kW 5126 kWh 3075 kWh 2050 kWh £813 £205 £1,018 £13,494 13.3 yrs £6,857
8 kW 5858 kWh 3515 kWh 2343 kWh £929 £234 £1,163 £15,122 13.0 yrs £8,137

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: £787, Upfront: £11,639, Break-even: 14.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1464 kWh 1025 kWh 439 kWh £271 £44 £315 £6,756 21.5 yrs £-460
3 kW 2197 kWh 1538 kWh 659 kWh £406 £66 £472 £8,383 17.8 yrs £1,060
4 kW 2929 kWh 2050 kWh 879 kWh £542 £88 £630 £10,011 15.9 yrs £2,580
5 kW 3661 kWh 2563 kWh 1098 kWh £677 £110 £787 £11,639 14.8 yrs £4,100
6 kW 4394 kWh 3075 kWh 1318 kWh £813 £132 £944 £13,267 14.0 yrs £5,620
7 kW 5126 kWh 3588 kWh 1538 kWh £948 £154 £1,102 £14,894 13.5 yrs £7,140
8 kW 5858 kWh 4101 kWh 1757 kWh £1,083 £176 £1,259 £16,522 13.1 yrs £8,660

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: £805, Upfront: £13,389, 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 1464 kWh 1069 kWh 395 kWh £282 £40 £322 £8,506 26.4 yrs £-2,066
3 kW 2197 kWh 1604 kWh 593 kWh £424 £59 £483 £10,133 21.0 yrs £-473
4 kW 2929 kWh 2138 kWh 791 kWh £565 £79 £644 £11,761 18.3 yrs £1,119
5 kW 3661 kWh 2673 kWh 989 kWh £706 £99 £805 £13,389 16.6 yrs £2,711
6 kW 4394 kWh 3207 kWh 1186 kWh £847 £119 £966 £15,017 15.5 yrs £4,303
7 kW 5126 kWh 3742 kWh 1384 kWh £989 £138 £1,127 £16,644 14.8 yrs £5,895
8 kW 5858 kWh 4276 kWh 1582 kWh £1,130 £158 £1,288 £18,272 14.2 yrs £7,487

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: £817, Upfront: £15,139, Break-even: 18.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1464 kWh 1098 kWh 366 kWh £290 £37 £327 £10,256 31.4 yrs £-3,719
3 kW 2197 kWh 1648 kWh 549 kWh £435 £55 £490 £11,883 24.2 yrs £-2,079
4 kW 2929 kWh 2197 kWh 732 kWh £580 £73 £654 £13,511 20.7 yrs £-439
5 kW 3661 kWh 2746 kWh 915 kWh £725 £92 £817 £15,139 18.5 yrs £1,201
6 kW 4394 kWh 3295 kWh 1098 kWh £871 £110 £980 £16,767 17.1 yrs £2,842
7 kW 5126 kWh 3844 kWh 1281 kWh £1,016 £128 £1,144 £18,394 16.1 yrs £4,482
8 kW 5858 kWh 4394 kWh 1464 kWh £1,161 £146 £1,307 £20,022 15.3 yrs £6,122

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: £829, Upfront: £17,589, Break-even: 21.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1464 kWh 1128 kWh 337 kWh £298 £34 £332 £12,706 38.3 yrs £-6,073
3 kW 2197 kWh 1691 kWh 505 kWh £447 £51 £497 £14,333 28.8 yrs £-4,385
4 kW 2929 kWh 2255 kWh 674 kWh £596 £67 £663 £15,961 24.1 yrs £-2,697
5 kW 3661 kWh 2819 kWh 842 kWh £745 £84 £829 £17,589 21.2 yrs £-1,008
6 kW 4394 kWh 3383 kWh 1011 kWh £894 £101 £995 £19,217 19.3 yrs £680
7 kW 5126 kWh 3947 kWh 1179 kWh £1,043 £118 £1,161 £20,844 18.0 yrs £2,369
8 kW 5858 kWh 4511 kWh 1347 kWh £1,192 £135 £1,326 £22,472 16.9 yrs £4,057

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 PH40

Figures below are tailored to PH40 — click through for full league tables.

Solar Payback Index Rank #2964 of 2996
15.1 years (UK avg 10.8 years)
~£485 /yr • £7,307 upfront
Standing-Charge Drag Rank #2959 of 2996
43.3% (UK avg 26.6%) drag on savings
£210 fixed • ~£485 /yr value
Aspect Penalty View ranking →
East −18.1% West −20.6%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in PH40

Monthly generation per kilowatt of solar panels

kWh 14 Jan 31 Feb 62 Mar 97 Apr 110 May 104 Jun 99 Jul 84 Aug 59 Sep 40 Oct 21 Nov 11 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 30.8% 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 19 kWh per month; the average month produces around 61 kWh. So a typical 4 kW home system would generate roughly 75 kWh in winter, or 244 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
57.55p/day
Local Sunshine
732kWh/kW
A 1 kW system generates ~732 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

Caol and Mallaig

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

PH41 (Highland)
≈4.4 km away
Local sunshine: ~799 kWh/kWp · +9% vs PH40
PH39 (Highland)
≈6.3 km away
Local sunshine: ~735 kWh/kWp · +0% vs PH40
IV45 (Highland)
≈11.5 km away
Local sunshine: ~749 kWh/kWp · +2% vs PH40
PH38 (Highland)
≈13.5 km away
Local sunshine: ~647 kWh/kWp · -12% vs PH40
IV44 (Highland)
≈14.9 km away
Local sunshine: ~753 kWh/kWp · +3% vs PH40
IV46 (Highland)
≈18.3 km away
Local sunshine: ~782 kWh/kWp · +7% vs PH40

Similar sunshine across the UK

PA19 (Inverclyde)
~756 kWh/kWp · +3% vs PH40
DL11 (North Yorkshire)
~765 kWh/kWp · +4% vs PH40
G84 (Argyll and Bute)
~766 kWh/kWp · +5% vs PH40