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Solar panel cost in Highland (PA40)

See realistic solar installation costs, savings and payback for PA40 (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
15.5 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£524
What you save every year
Profit Over 25 Years
£4,961
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 633 kWh/kW — 182 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 633 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)
633 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: £524, Upfront: £8,139, Break-even: 15.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1265 kWh 506 kWh 759 kWh £134 £76 £210 £3,256 15.5 yrs £936
3 kW 1898 kWh 759 kWh 1139 kWh £201 £114 £314 £4,883 15.5 yrs £1,405
4 kW 2530 kWh 1012 kWh 1518 kWh £267 £152 £419 £6,511 15.5 yrs £1,873
5 kW 3163 kWh 1265 kWh 1898 kWh £334 £190 £524 £8,139 15.5 yrs £2,341
6 kW 3795 kWh 1518 kWh 2277 kWh £401 £228 £629 £9,767 15.5 yrs £2,809
7 kW 4428 kWh 1771 kWh 2657 kWh £468 £266 £734 £11,394 15.5 yrs £3,278
8 kW 5060 kWh 2024 kWh 3036 kWh £535 £304 £838 £13,022 15.5 yrs £3,746

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: £628, Upfront: £10,239, 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 1265 kWh 759 kWh 506 kWh £201 £51 £251 £5,356 21.3 yrs £-333
3 kW 1898 kWh 1139 kWh 759 kWh £301 £76 £377 £6,983 18.5 yrs £551
4 kW 2530 kWh 1518 kWh 1012 kWh £401 £101 £502 £8,611 17.1 yrs £1,435
5 kW 3163 kWh 1898 kWh 1265 kWh £501 £127 £628 £10,239 16.3 yrs £2,318
6 kW 3795 kWh 2277 kWh 1518 kWh £602 £152 £753 £11,867 15.8 yrs £3,202
7 kW 4428 kWh 2657 kWh 1771 kWh £702 £177 £879 £13,494 15.4 yrs £4,086
8 kW 5060 kWh 3036 kWh 2024 kWh £802 £202 £1,005 £15,122 15.1 yrs £4,969

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: £680, Upfront: £11,639, Break-even: 17.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1265 kWh 886 kWh 380 kWh £234 £38 £272 £6,756 24.8 yrs £-1,317
3 kW 1898 kWh 1328 kWh 569 kWh £351 £57 £408 £8,383 20.6 yrs £-226
4 kW 2530 kWh 1771 kWh 759 kWh £468 £76 £544 £10,011 18.4 yrs £866
5 kW 3163 kWh 2214 kWh 949 kWh £585 £95 £680 £11,639 17.1 yrs £1,957
6 kW 3795 kWh 2657 kWh 1139 kWh £702 £114 £816 £13,267 16.3 yrs £3,048
7 kW 4428 kWh 3099 kWh 1328 kWh £819 £133 £952 £14,894 15.7 yrs £4,140
8 kW 5060 kWh 3542 kWh 1518 kWh £936 £152 £1,088 £16,522 15.2 yrs £5,231

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: £695, Upfront: £13,389, Break-even: 19.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1265 kWh 924 kWh 342 kWh £244 £34 £278 £8,506 30.6 yrs £-2,943
3 kW 1898 kWh 1385 kWh 512 kWh £366 £51 £417 £10,133 24.3 yrs £-1,789
4 kW 2530 kWh 1847 kWh 683 kWh £488 £68 £556 £11,761 21.1 yrs £-635
5 kW 3163 kWh 2309 kWh 854 kWh £610 £85 £695 £13,389 19.3 yrs £519
6 kW 3795 kWh 2771 kWh 1025 kWh £732 £102 £834 £15,017 18.0 yrs £1,672
7 kW 4428 kWh 3232 kWh 1196 kWh £854 £120 £974 £16,644 17.1 yrs £2,826
8 kW 5060 kWh 3694 kWh 1366 kWh £976 £137 £1,113 £18,272 16.4 yrs £3,980

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: £706, Upfront: £15,139, Break-even: 21.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1265 kWh 949 kWh 316 kWh £251 £32 £282 £10,256 36.3 yrs £-4,609
3 kW 1898 kWh 1423 kWh 474 kWh £376 £47 £423 £11,883 28.1 yrs £-3,414
4 kW 2530 kWh 1898 kWh 633 kWh £501 £63 £565 £13,511 23.9 yrs £-2,219
5 kW 3163 kWh 2372 kWh 791 kWh £627 £79 £706 £15,139 21.5 yrs £-1,024
6 kW 3795 kWh 2846 kWh 949 kWh £752 £95 £847 £16,767 19.8 yrs £172
7 kW 4428 kWh 3321 kWh 1107 kWh £877 £111 £988 £18,394 18.6 yrs £1,367
8 kW 5060 kWh 3795 kWh 1265 kWh £1,003 £127 £1,129 £20,022 17.7 yrs £2,562

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: £716, Upfront: £17,589, Break-even: 24.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1265 kWh 974 kWh 291 kWh £257 £29 £286 £12,706 44.4 yrs £-6,976
3 kW 1898 kWh 1461 kWh 436 kWh £386 £44 £430 £14,333 33.4 yrs £-5,740
4 kW 2530 kWh 1948 kWh 582 kWh £515 £58 £573 £15,961 27.9 yrs £-4,503
5 kW 3163 kWh 2435 kWh 727 kWh £643 £73 £716 £17,589 24.6 yrs £-3,266
6 kW 3795 kWh 2922 kWh 873 kWh £772 £87 £859 £19,217 22.4 yrs £-2,029
7 kW 4428 kWh 3409 kWh 1018 kWh £901 £102 £1,003 £20,844 20.8 yrs £-792
8 kW 5060 kWh 3896 kWh 1164 kWh £1,029 £116 £1,146 £22,472 19.6 yrs £444

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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Want a quote sanity check for PA40?

Share the first part of your postcode and a few basics. We’ll help you check whether system size, battery, export and paperwork assumptions look sensible before you commit to installer conversations.

This is a practical sanity-check request, not an instant quote promise. The Blue Ape quote route above remains available if you already want installer introductions.

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Insights for PA40

Figures below are tailored to PA40 — click through for full league tables.

Solar Payback Index Rank #2994 of 2996
17.4 years (UK avg 10.8 years)
~£420 /yr • £7,307 upfront
Standing-Charge Drag Rank #2993 of 2996
50.0% (UK avg 26.6%) drag on savings
£210 fixed • ~£420 /yr value
Aspect Penalty View ranking →
East −13.1% West −13.0%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in PA40

Monthly generation per kilowatt of solar panels

kWh 4 Jan 13 Feb 60 Mar 90 Apr 101 May 95 Jun 95 Jul 81 Aug 57 Sep 27 Oct 6 Nov 3 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 12.7% 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 7 kWh per month; the average month produces around 53 kWh. So a typical 4 kW home system would generate roughly 27 kWh in winter, or 211 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
57.55p/day
Local Sunshine
633kWh/kW
A 1 kW system generates ~633 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

Fort William and Ardnamurchan

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

PH50 (Highland)
≈0.0 km away
Local sunshine: ~653 kWh/kWp · +3% vs PA40
PA39 (Highland)
≈11.0 km away
Local sunshine: ~583 kWh/kWp · -8% vs PA40
PH49 (Highland)
≈11.1 km away
Local sunshine: ~627 kWh/kWp · -1% vs PA40
PH33 (Highland)
≈14.7 km away
Local sunshine: ~668 kWh/kWp · +6% vs PA40
PH34 (Highland)
≈19.9 km away
Local sunshine: ~701 kWh/kWp · +11% vs PA40
PH31 (Highland)
≈21.1 km away
Local sunshine: ~711 kWh/kWp · +12% vs PA40

Similar sunshine across the UK

PH49 (Highland)
~627 kWh/kWp · -1% vs PA40
PH38 (Highland)
~647 kWh/kWp · +2% vs PA40
PH50 (Highland)
~653 kWh/kWp · +3% vs PA40