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Solar panel cost in Na h-Eileanan Siar (PA80)

See realistic solar installation costs, savings and payback for PA80 (Na h-Eileanan Siar) 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
16.8 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£606
What you save every year
Profit Over 25 Years
£4,980
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: Bigger systems don’t shorten payback—cost and savings rise together per kW.
  • 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

Costs: Battery prices are typically £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 23.40p/kWh with a 58.28p/day standing charge. Your postcode’s south-facing sunshine yield is 789 kWh/kW — 26 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 789 kWh per year on a south-facing roof. We value self-used electricity at 23.4p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
23.4p/kWh
Standing charge
58.3p/day
Sunshine yield (south)
789 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: £606, Upfront: £10,173, Break-even: 16.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1578 kWh 631 kWh 947 kWh £148 £95 £242 £4,069 16.8 yrs £780
3 kW 2368 kWh 947 kWh 1421 kWh £222 £142 £364 £6,104 16.8 yrs £1,169
4 kW 3157 kWh 1263 kWh 1894 kWh £295 £189 £485 £8,138 16.8 yrs £1,559
5 kW 3946 kWh 1578 kWh 2368 kWh £369 £237 £606 £10,173 16.8 yrs £1,949
6 kW 4735 kWh 1894 kWh 2841 kWh £443 £284 £727 £12,207 16.8 yrs £2,339
7 kW 5524 kWh 2210 kWh 3315 kWh £517 £331 £849 £14,242 16.8 yrs £2,729
8 kW 6313 kWh 2525 kWh 3788 kWh £591 £379 £970 £16,276 16.8 yrs £3,119

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £712, Upfront: £12,273, Break-even: 17.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1578 kWh 947 kWh 631 kWh £222 £63 £285 £6,169 21.7 yrs £-474
3 kW 2368 kWh 1421 kWh 947 kWh £332 £95 £427 £8,204 19.2 yrs £338
4 kW 3157 kWh 1894 kWh 1263 kWh £443 £126 £569 £10,238 18.0 yrs £1,151
5 kW 3946 kWh 2368 kWh 1578 kWh £554 £158 £712 £12,273 17.2 yrs £1,964
6 kW 4735 kWh 2841 kWh 1894 kWh £665 £189 £854 £14,307 16.7 yrs £2,777
7 kW 5524 kWh 3315 kWh 2210 kWh £776 £221 £997 £16,342 16.4 yrs £3,590
8 kW 6313 kWh 3788 kWh 2525 kWh £886 £253 £1,139 £18,376 16.1 yrs £4,403

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £765, Upfront: £13,673, Break-even: 17.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1578 kWh 1105 kWh 474 kWh £259 £47 £306 £7,569 24.7 yrs £-1,451
3 kW 2368 kWh 1657 kWh 710 kWh £388 £71 £459 £9,604 20.9 yrs £-427
4 kW 3157 kWh 2210 kWh 947 kWh £517 £95 £612 £11,638 19.0 yrs £597
5 kW 3946 kWh 2762 kWh 1184 kWh £646 £118 £765 £13,673 17.9 yrs £1,622
6 kW 4735 kWh 3315 kWh 1421 kWh £776 £142 £918 £15,707 17.1 yrs £2,646
7 kW 5524 kWh 3867 kWh 1657 kWh £905 £166 £1,071 £17,742 16.6 yrs £3,670
8 kW 6313 kWh 4419 kWh 1894 kWh £1,034 £189 £1,224 £19,776 16.2 yrs £4,695

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £781, Upfront: £15,423, Break-even: 19.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1578 kWh 1152 kWh 426 kWh £270 £43 £312 £9,319 29.8 yrs £-3,074
3 kW 2368 kWh 1728 kWh 639 kWh £404 £64 £468 £11,354 24.2 yrs £-1,987
4 kW 3157 kWh 2304 kWh 852 kWh £539 £85 £624 £13,388 21.4 yrs £-899
5 kW 3946 kWh 2880 kWh 1065 kWh £674 £107 £781 £15,423 19.8 yrs £189
6 kW 4735 kWh 3457 kWh 1278 kWh £809 £128 £937 £17,457 18.6 yrs £1,277
7 kW 5524 kWh 4033 kWh 1492 kWh £944 £149 £1,093 £19,492 17.8 yrs £2,364
8 kW 6313 kWh 4609 kWh 1705 kWh £1,078 £170 £1,249 £21,526 17.2 yrs £3,452

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £791, Upfront: £17,173, Break-even: 21.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1578 kWh 1184 kWh 395 kWh £277 £39 £316 £11,069 35.0 yrs £-4,740
3 kW 2368 kWh 1776 kWh 592 kWh £415 £59 £475 £13,104 27.6 yrs £-3,610
4 kW 3157 kWh 2368 kWh 789 kWh £554 £79 £633 £15,138 23.9 yrs £-2,480
5 kW 3946 kWh 2959 kWh 986 kWh £692 £99 £791 £17,173 21.7 yrs £-1,350
6 kW 4735 kWh 3551 kWh 1184 kWh £831 £118 £949 £19,207 20.2 yrs £-220
7 kW 5524 kWh 4143 kWh 1381 kWh £969 £138 £1,108 £21,242 19.2 yrs £910
8 kW 6313 kWh 4735 kWh 1578 kWh £1,108 £158 £1,266 £23,276 18.4 yrs £2,040

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £802, Upfront: £19,623, Break-even: 24.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1578 kWh 1215 kWh 363 kWh £284 £36 £321 £13,519 42.2 yrs £-7,105
3 kW 2368 kWh 1823 kWh 545 kWh £427 £54 £481 £15,554 32.3 yrs £-5,933
4 kW 3157 kWh 2431 kWh 726 kWh £569 £73 £641 £17,588 27.4 yrs £-4,761
5 kW 3946 kWh 3038 kWh 908 kWh £711 £91 £802 £19,623 24.5 yrs £-3,588
6 kW 4735 kWh 3646 kWh 1089 kWh £853 £109 £962 £21,657 22.5 yrs £-2,416
7 kW 5524 kWh 4254 kWh 1271 kWh £995 £127 £1,122 £23,692 21.1 yrs £-1,243
8 kW 6313 kWh 4861 kWh 1452 kWh £1,138 £145 £1,283 £25,726 20.1 yrs £-71

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 2,035, 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.

Insights for PA80

Figures below are tailored to PA80 — click through for full league tables.

Solar Payback Index Rank #2905 of 2997
14.9 years (UK avg 12.6 years)
~£547 /yr • £8,138 upfront
Standing-Charge Drag Rank #2909 of 2997
41.4% (UK avg 24.6%) drag on savings
£227 fixed • ~£547 /yr value
Aspect Penalty View ranking →
East −18.1% West −20.7%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in PA80

Monthly generation per kilowatt of solar panels

kWh 17 Jan 35 Feb 67 Mar 103 Apr 115 May 109 Jun 105 Jul 91 Aug 65 Sep 43 Oct 24 Nov 15 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 34.1% 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 22 kWh per month; the average month produces around 66 kWh. So a typical 4 kW home system would generate roughly 90 kWh in winter, or 263 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
23.40p/kWh
Daily Fixed Charge
58.28p/day
Local Sunshine
789kWh/kW
A 1 kW system generates ~789 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

Na h-Eileanan Siar (58%)|Highland (42%)

Areas Covered

Barraigh agus Bhatarsaigh, Fort William and Ardnamurchan

Data Sources & Assumptions

Solar yield: PVGIS (EU Joint Research Centre), January 2025 data

Electricity rates: Ofgem price cap, Q1 2026

Installation costs: MCS certified installer data, March 2025

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

HS9 (Na h-Eileanan Siar)
≈4.3 km away
Local sunshine: ~857 kWh/kWp · +9% vs PA80
PA81 (Na h-Eileanan Siar)
≈30.0 km away
Local sunshine: ~846 kWh/kWp · +7% vs PA80
HS8 (Na h-Eileanan Siar)
≈30.0 km away
Local sunshine: ~861 kWh/kWp · +9% vs PA80
PH44 (Highland)
≈57.1 km away
Local sunshine: ~827 kWh/kWp · +5% vs PA80
HS7 (Na h-Eileanan Siar)
≈57.9 km away
Local sunshine: ~861 kWh/kWp · +9% vs PA80
PA88 (Na h-Eileanan Siar)
≈58.2 km away
Local sunshine: ~861 kWh/kWp · +9% vs PA80

Similar sunshine across the UK

PA18 (Inverclyde)
~789 kWh/kWp · -0% vs PA80
LL57 (Gwynedd)
~792 kWh/kWp · +0% vs PA80
CA17 (Westmorland and Furness)
~792 kWh/kWp · +0% vs PA80