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Solar Panels in HS5 (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
14.9 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£683
What you save every year
Profit Over 25 Years
£6,899
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 812 kWh/kW — 3 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 812 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)
812 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: £683, Upfront: £10,173, Break-even: 14.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1624 kWh 649 kWh 974 kWh £176 £97 £273 £4,069 14.9 yrs £1,394
3 kW 2435 kWh 974 kWh 1461 kWh £264 £146 £410 £6,104 14.9 yrs £2,091
4 kW 3247 kWh 1299 kWh 1948 kWh £351 £195 £546 £8,138 14.9 yrs £2,787
5 kW 4059 kWh 1624 kWh 2435 kWh £439 £244 £683 £10,173 14.9 yrs £3,484
6 kW 4870 kWh 1948 kWh 2922 kWh £527 £292 £819 £12,207 14.9 yrs £4,181
7 kW 5682 kWh 2273 kWh 3409 kWh £615 £341 £956 £14,242 14.9 yrs £4,878
8 kW 6494 kWh 2598 kWh 3896 kWh £703 £390 £1,093 £16,276 14.9 yrs £5,575

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: £821, Upfront: £12,273, Break-even: 14.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1624 kWh 974 kWh 649 kWh £264 £65 £329 £6,169 18.8 yrs £402
3 kW 2435 kWh 1461 kWh 974 kWh £395 £97 £493 £8,204 16.6 yrs £1,652
4 kW 3247 kWh 1948 kWh 1299 kWh £527 £130 £657 £10,238 15.6 yrs £2,903
5 kW 4059 kWh 2435 kWh 1624 kWh £659 £162 £821 £12,273 14.9 yrs £4,154
6 kW 4870 kWh 2922 kWh 1948 kWh £791 £195 £986 £14,307 14.5 yrs £5,405
7 kW 5682 kWh 3409 kWh 2273 kWh £923 £227 £1,150 £16,342 14.2 yrs £6,656
8 kW 6494 kWh 3896 kWh 2598 kWh £1,054 £260 £1,314 £18,376 14.0 yrs £7,906

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: £891, 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 1624 kWh 1136 kWh 487 kWh £308 £49 £356 £7,569 21.2 yrs £-444
3 kW 2435 kWh 1705 kWh 731 kWh £461 £73 £534 £9,604 18.0 yrs £1,083
4 kW 3247 kWh 2273 kWh 974 kWh £615 £97 £712 £11,638 16.3 yrs £2,611
5 kW 4059 kWh 2841 kWh 1218 kWh £769 £122 £891 £13,673 15.4 yrs £4,139
6 kW 4870 kWh 3409 kWh 1461 kWh £923 £146 £1,069 £15,707 14.7 yrs £5,667
7 kW 5682 kWh 3978 kWh 1705 kWh £1,076 £170 £1,247 £17,742 14.2 yrs £7,194
8 kW 6494 kWh 4546 kWh 1948 kWh £1,230 £195 £1,425 £19,776 13.9 yrs £8,722

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: £911, Upfront: £15,423, Break-even: 16.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1624 kWh 1185 kWh 438 kWh £321 £44 £365 £9,319 25.6 yrs £-2,028
3 kW 2435 kWh 1778 kWh 658 kWh £481 £66 £547 £11,354 20.8 yrs £-417
4 kW 3247 kWh 2370 kWh 877 kWh £641 £88 £729 £13,388 18.4 yrs £1,193
5 kW 4059 kWh 2963 kWh 1096 kWh £802 £110 £911 £15,423 16.9 yrs £2,804
6 kW 4870 kWh 3555 kWh 1315 kWh £962 £132 £1,094 £17,457 16.0 yrs £4,415
7 kW 5682 kWh 4148 kWh 1534 kWh £1,122 £153 £1,276 £19,492 15.3 yrs £6,026
8 kW 6494 kWh 4741 kWh 1753 kWh £1,283 £175 £1,458 £21,526 14.8 yrs £7,637

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: £925, 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 1624 kWh 1218 kWh 406 kWh £329 £41 £370 £11,069 29.9 yrs £-3,667
3 kW 2435 kWh 1826 kWh 609 kWh £494 £61 £555 £13,104 23.6 yrs £-2,001
4 kW 3247 kWh 2435 kWh 812 kWh £659 £81 £740 £15,138 20.5 yrs £-335
5 kW 4059 kWh 3044 kWh 1015 kWh £824 £101 £925 £17,173 18.6 yrs £1,331
6 kW 4870 kWh 3653 kWh 1218 kWh £988 £122 £1,110 £19,207 17.3 yrs £2,998
7 kW 5682 kWh 4262 kWh 1421 kWh £1,153 £142 £1,295 £21,242 16.4 yrs £4,664
8 kW 6494 kWh 4870 kWh 1624 kWh £1,318 £162 £1,480 £23,276 15.7 yrs £6,330

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: £939, Upfront: £19,623, Break-even: 20.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1624 kWh 1250 kWh 373 kWh £338 £37 £376 £13,519 36.0 yrs £-6,007
3 kW 2435 kWh 1875 kWh 560 kWh £507 £56 £563 £15,554 27.6 yrs £-4,285
4 kW 3247 kWh 2500 kWh 747 kWh £677 £75 £751 £17,588 23.4 yrs £-2,563
5 kW 4059 kWh 3125 kWh 934 kWh £846 £93 £939 £19,623 20.9 yrs £-842
6 kW 4870 kWh 3750 kWh 1120 kWh £1,015 £112 £1,127 £21,657 19.2 yrs £880
7 kW 5682 kWh 4375 kWh 1307 kWh £1,184 £131 £1,315 £23,692 18.0 yrs £2,602
8 kW 6494 kWh 5000 kWh 1494 kWh £1,353 £149 £1,502 £25,726 17.1 yrs £4,323

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 HS5

Figures below are tailored to HS5 — click through for full league tables.

Solar Payback Index Rank #2758 of 2997
12.9 years (UK avg 11.3 years)
~£629 /yr • £8,138 upfront
Standing-Charge Drag Rank #2873 of 2997
35.4% (UK avg 21.7%) drag on savings
£223 fixed • ~£629 /yr value

Your Area at a Glance

Your Electricity Rate
27.06p/kWh
Daily Fixed Charge
61.00p/day
Local Sunshine
812kWh/kW
A 1 kW system generates ~812 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, Steòrnabhagh a Deas

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

PA83 (Na h-Eileanan Siar)
≈0.1 km away
Local sunshine: ~809 kWh/kWp · -0% vs HS5
HS3 (Na h-Eileanan Siar)
≈17.6 km away
Local sunshine: ~719 kWh/kWp · -11% vs HS5
PA85 (Na h-Eileanan Siar)
≈17.7 km away
Local sunshine: ~719 kWh/kWp · -11% vs HS5
PA84 (Na h-Eileanan Siar)
≈22.1 km away
Local sunshine: ~792 kWh/kWp · -2% vs HS5
HS4 (Na h-Eileanan Siar)
≈22.1 km away
Local sunshine: ~791 kWh/kWp · -3% vs HS5
HS6 (Na h-Eileanan Siar)
≈24.4 km away
Local sunshine: ~818 kWh/kWp · +1% vs HS5

Similar sunshine across the UK

ML6 (North Lanarkshire)
~811 kWh/kWp · -0% vs HS5
LL48 (Gwynedd)
~812 kWh/kWp · +0% vs HS5
CA13 (Cumberland)
~812 kWh/kWp · +0% vs HS5