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Solar Panels in PA83 (Na h-Eileanan Siar)

See if solar pays off for you in Na h-Eileanan Siar — price, savings and payback in under a minute (official UK data).

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
15.0 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£680
What you save every year
Profit Over 25 Years
£6,835
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 27.06p/kWh with a 61.00p/day standing charge. Your postcode’s south-facing sunshine yield is 809 kWh/kW — 6 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 809 kWh per year on a south-facing roof. We value self-used electricity at 27.1p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
27.1p/kWh
Standing charge
61.0p/day
Sunshine yield (south)
809 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: £680, Upfront: £10,173, Break-even: 15.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1617 kWh 647 kWh 970 kWh £175 £97 £272 £4,069 15.0 yrs £1,373
3 kW 2426 kWh 970 kWh 1456 kWh £263 £146 £408 £6,104 15.0 yrs £2,060
4 kW 3235 kWh 1294 kWh 1941 kWh £350 £194 £544 £8,138 15.0 yrs £2,747
5 kW 4044 kWh 1617 kWh 2426 kWh £438 £243 £680 £10,173 15.0 yrs £3,434
6 kW 4852 kWh 1941 kWh 2911 kWh £525 £291 £816 £12,207 15.0 yrs £4,120
7 kW 5661 kWh 2264 kWh 3397 kWh £613 £340 £952 £14,242 15.0 yrs £4,807
8 kW 6470 kWh 2588 kWh 3882 kWh £700 £388 £1,088 £16,276 15.0 yrs £5,494

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: £818, Upfront: £12,273, Break-even: 15.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1617 kWh 970 kWh 647 kWh £263 £65 £327 £6,169 18.8 yrs £377
3 kW 2426 kWh 1456 kWh 970 kWh £394 £97 £491 £8,204 16.7 yrs £1,616
4 kW 3235 kWh 1941 kWh 1294 kWh £525 £129 £655 £10,238 15.6 yrs £2,854
5 kW 4044 kWh 2426 kWh 1617 kWh £657 £162 £818 £12,273 15.0 yrs £4,093
6 kW 4852 kWh 2911 kWh 1941 kWh £788 £194 £982 £14,307 14.6 yrs £5,332
7 kW 5661 kWh 3397 kWh 2264 kWh £919 £226 £1,146 £16,342 14.3 yrs £6,570
8 kW 6470 kWh 3882 kWh 2588 kWh £1,050 £259 £1,309 £18,376 14.0 yrs £7,809

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: £887, Upfront: £13,673, Break-even: 15.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1617 kWh 1132 kWh 485 kWh £306 £49 £355 £7,569 21.3 yrs £-471
3 kW 2426 kWh 1698 kWh 728 kWh £460 £73 £532 £9,604 18.0 yrs £1,044
4 kW 3235 kWh 2264 kWh 970 kWh £613 £97 £710 £11,638 16.4 yrs £2,558
5 kW 4044 kWh 2831 kWh 1213 kWh £766 £121 £887 £13,673 15.4 yrs £4,073
6 kW 4852 kWh 3397 kWh 1456 kWh £919 £146 £1,065 £15,707 14.8 yrs £5,587
7 kW 5661 kWh 3963 kWh 1698 kWh £1,072 £170 £1,242 £17,742 14.3 yrs £7,102
8 kW 6470 kWh 4529 kWh 1941 kWh £1,226 £194 £1,420 £19,776 13.9 yrs £8,617

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: £908, Upfront: £15,423, Break-even: 17.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1617 kWh 1181 kWh 437 kWh £320 £44 £363 £9,319 25.7 yrs £-2,055
3 kW 2426 kWh 1771 kWh 655 kWh £479 £66 £545 £11,354 20.8 yrs £-458
4 kW 3235 kWh 2362 kWh 873 kWh £639 £87 £726 £13,388 18.4 yrs £1,139
5 kW 4044 kWh 2952 kWh 1092 kWh £799 £109 £908 £15,423 17.0 yrs £2,737
6 kW 4852 kWh 3542 kWh 1310 kWh £959 £131 £1,090 £17,457 16.0 yrs £4,334
7 kW 5661 kWh 4133 kWh 1529 kWh £1,118 £153 £1,271 £19,492 15.3 yrs £5,931
8 kW 6470 kWh 4723 kWh 1747 kWh £1,278 £175 £1,453 £21,526 14.8 yrs £7,529

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: £922, Upfront: £17,173, Break-even: 18.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1617 kWh 1213 kWh 404 kWh £328 £40 £369 £11,069 30.0 yrs £-3,695
3 kW 2426 kWh 1820 kWh 607 kWh £492 £61 £553 £13,104 23.7 yrs £-2,042
4 kW 3235 kWh 2426 kWh 809 kWh £657 £81 £737 £15,138 20.5 yrs £-390
5 kW 4044 kWh 3033 kWh 1011 kWh £821 £101 £922 £17,173 18.6 yrs £1,263
6 kW 4852 kWh 3639 kWh 1213 kWh £985 £121 £1,106 £19,207 17.4 yrs £2,915
7 kW 5661 kWh 4246 kWh 1415 kWh £1,149 £142 £1,290 £21,242 16.5 yrs £4,568
8 kW 6470 kWh 4852 kWh 1617 kWh £1,313 £162 £1,475 £23,276 15.8 yrs £6,220

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: £936, Upfront: £19,623, Break-even: 21.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1617 kWh 1245 kWh 372 kWh £337 £37 £374 £13,519 36.1 yrs £-6,035
3 kW 2426 kWh 1868 kWh 558 kWh £506 £56 £561 £15,554 27.7 yrs £-4,327
4 kW 3235 kWh 2491 kWh 744 kWh £674 £74 £748 £17,588 23.5 yrs £-2,619
5 kW 4044 kWh 3114 kWh 930 kWh £843 £93 £936 £19,623 21.0 yrs £-911
6 kW 4852 kWh 3736 kWh 1116 kWh £1,011 £112 £1,123 £21,657 19.3 yrs £796
7 kW 5661 kWh 4359 kWh 1302 kWh £1,180 £130 £1,310 £23,692 18.1 yrs £2,504
8 kW 6470 kWh 4982 kWh 1488 kWh £1,348 £149 £1,497 £25,726 17.2 yrs £4,212

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 PA83

Figures below are tailored to PA83 — click through for full league tables.

Solar Payback Index Rank #2825 of 2997
13.0 years (UK avg 11.3 years)
~£627 /yr • £8,138 upfront
Standing-Charge Drag Rank #2881 of 2997
35.5% (UK avg 21.7%) drag on savings
£223 fixed • ~£627 /yr value

Your Area at a Glance

Your Electricity Rate
27.06p/kWh
Daily Fixed Charge
61.00p/day
Local Sunshine
809kWh/kW
A 1 kW system generates ~809 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 (100%)

Areas Covered

Na Hearadh

Data Sources & Assumptions

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

Electricity rates: Ofgem price cap, Q4 2025

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

HS5 (Na h-Eileanan Siar)
≈0.1 km away
Local sunshine: ~812 kWh/kWp · +0% vs PA83
HS3 (Na h-Eileanan Siar)
≈17.5 km away
Local sunshine: ~719 kWh/kWp · -11% vs PA83
PA85 (Na h-Eileanan Siar)
≈17.6 km away
Local sunshine: ~719 kWh/kWp · -11% vs PA83
PA84 (Na h-Eileanan Siar)
≈22.0 km away
Local sunshine: ~792 kWh/kWp · -2% vs PA83
HS4 (Na h-Eileanan Siar)
≈22.0 km away
Local sunshine: ~791 kWh/kWp · -2% vs PA83
HS6 (Na h-Eileanan Siar)
≈24.5 km away
Local sunshine: ~818 kWh/kWp · +1% vs PA83

Similar sunshine across the UK

PA16 (Inverclyde)
~808 kWh/kWp · -0% vs PA83
EH45 (Scottish Borders)
~810 kWh/kWp · +0% vs PA83
LL41 (Gwynedd)
~808 kWh/kWp · -0% vs PA83