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Solar panel cost in Highland (IV40)

See realistic solar installation costs, savings and payback for IV40 (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
13.7 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£594
What you save every year
Profit Over 25 Years
£6,701
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 717 kWh/kW — 98 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 717 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)
717 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: £594, Upfront: £8,139, Break-even: 13.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1433 kWh 573 kWh 860 kWh £151 £86 £237 £3,256 13.7 yrs £1,493
3 kW 2150 kWh 860 kWh 1290 kWh £227 £129 £356 £4,883 13.7 yrs £2,240
4 kW 2866 kWh 1146 kWh 1720 kWh £303 £172 £475 £6,511 13.7 yrs £2,986
5 kW 3583 kWh 1433 kWh 2150 kWh £379 £215 £594 £8,139 13.7 yrs £3,733
6 kW 4299 kWh 1720 kWh 2580 kWh £454 £258 £712 £9,767 13.7 yrs £4,480
7 kW 5016 kWh 2006 kWh 3010 kWh £530 £301 £831 £11,394 13.7 yrs £5,226
8 kW 5732 kWh 2293 kWh 3439 kWh £606 £344 £950 £13,022 13.7 yrs £5,973

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: £711, Upfront: £10,239, Break-even: 14.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1433 kWh 860 kWh 573 kWh £227 £57 £284 £5,356 18.8 yrs £334
3 kW 2150 kWh 1290 kWh 860 kWh £341 £86 £427 £6,983 16.4 yrs £1,552
4 kW 2866 kWh 1720 kWh 1146 kWh £454 £115 £569 £8,611 15.1 yrs £2,769
5 kW 3583 kWh 2150 kWh 1433 kWh £568 £143 £711 £10,239 14.4 yrs £3,986
6 kW 4299 kWh 2580 kWh 1720 kWh £682 £172 £853 £11,867 13.9 yrs £5,203
7 kW 5016 kWh 3010 kWh 2006 kWh £795 £201 £996 £13,494 13.6 yrs £6,421
8 kW 5732 kWh 3439 kWh 2293 kWh £909 £229 £1,138 £15,122 13.3 yrs £7,638

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: £770, Upfront: £11,639, Break-even: 15.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1433 kWh 1003 kWh 430 kWh £265 £43 £308 £6,756 21.9 yrs £-595
3 kW 2150 kWh 1505 kWh 645 kWh £398 £64 £462 £8,383 18.1 yrs £858
4 kW 2866 kWh 2006 kWh 860 kWh £530 £86 £616 £10,011 16.3 yrs £2,310
5 kW 3583 kWh 2508 kWh 1075 kWh £663 £107 £770 £11,639 15.1 yrs £3,763
6 kW 4299 kWh 3010 kWh 1290 kWh £795 £129 £924 £13,267 14.4 yrs £5,215
7 kW 5016 kWh 3511 kWh 1505 kWh £928 £150 £1,078 £14,894 13.8 yrs £6,668
8 kW 5732 kWh 4013 kWh 1720 kWh £1,060 £172 £1,232 £16,522 13.4 yrs £8,120

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: £788, Upfront: £13,389, 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 1433 kWh 1046 kWh 387 kWh £276 £39 £315 £8,506 27.0 yrs £-2,204
3 kW 2150 kWh 1569 kWh 580 kWh £415 £58 £473 £10,133 21.4 yrs £-681
4 kW 2866 kWh 2092 kWh 774 kWh £553 £77 £630 £11,761 18.7 yrs £843
5 kW 3583 kWh 2615 kWh 967 kWh £691 £97 £788 £13,389 17.0 yrs £2,366
6 kW 4299 kWh 3138 kWh 1161 kWh £829 £116 £945 £15,017 15.9 yrs £3,889
7 kW 5016 kWh 3662 kWh 1354 kWh £967 £135 £1,103 £16,644 15.1 yrs £5,412
8 kW 5732 kWh 4185 kWh 1548 kWh £1,106 £155 £1,260 £18,272 14.5 yrs £6,935

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: £799, Upfront: £15,139, Break-even: 18.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1433 kWh 1075 kWh 358 kWh £284 £36 £320 £10,256 32.1 yrs £-3,860
3 kW 2150 kWh 1612 kWh 537 kWh £426 £54 £480 £11,883 24.8 yrs £-2,289
4 kW 2866 kWh 2150 kWh 717 kWh £568 £72 £640 £13,511 21.1 yrs £-719
5 kW 3583 kWh 2687 kWh 896 kWh £710 £90 £799 £15,139 18.9 yrs £851
6 kW 4299 kWh 3224 kWh 1075 kWh £852 £107 £959 £16,767 17.5 yrs £2,421
7 kW 5016 kWh 3762 kWh 1254 kWh £994 £125 £1,119 £18,394 16.4 yrs £3,991
8 kW 5732 kWh 4299 kWh 1433 kWh £1,136 £143 £1,279 £20,022 15.7 yrs £5,562

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: £811, Upfront: £17,589, 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 1433 kWh 1103 kWh 330 kWh £292 £33 £325 £12,706 39.2 yrs £-6,215
3 kW 2150 kWh 1655 kWh 494 kWh £437 £49 £487 £14,333 29.4 yrs £-4,598
4 kW 2866 kWh 2207 kWh 659 kWh £583 £66 £649 £15,961 24.6 yrs £-2,981
5 kW 3583 kWh 2759 kWh 824 kWh £729 £82 £811 £17,589 21.7 yrs £-1,364
6 kW 4299 kWh 3310 kWh 989 kWh £875 £99 £974 £19,217 19.7 yrs £254
7 kW 5016 kWh 3862 kWh 1154 kWh £1,020 £115 £1,136 £20,844 18.4 yrs £1,871
8 kW 5732 kWh 4414 kWh 1318 kWh £1,166 £132 £1,298 £22,472 17.3 yrs £3,488

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 IV40

Figures below are tailored to IV40 — click through for full league tables.

Solar Payback Index Rank #2969 of 2996
15.4 years (UK avg 10.8 years)
~£475 /yr • £7,307 upfront
Standing-Charge Drag Rank #2969 of 2996
44.2% (UK avg 26.6%) drag on savings
£210 fixed • ~£475 /yr value
Aspect Penalty View ranking →
East −18.5% West −19.1%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in IV40

Monthly generation per kilowatt of solar panels

kWh 15 Jan 32 Feb 61 Mar 93 Apr 106 May 101 Jun 96 Jul 83 Aug 58 Sep 40 Oct 22 Nov 9 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 31.4% 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 60 kWh. So a typical 4 kW home system would generate roughly 75 kWh in winter, or 239 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
26.42p/kWh
Daily Fixed Charge
57.55p/day
Local Sunshine
717kWh/kW
A 1 kW system generates ~717 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

Wester Ross, Strathpeffer and Lochalsh, Eilean á Chèo

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

IV41 (Highland)
≈2.2 km away
Local sunshine: ~712 kWh/kWp · -1% vs IV40
IV52 (Highland)
≈6.8 km away
Local sunshine: ~702 kWh/kWp · -2% vs IV40
IV42 (Highland)
≈9.9 km away
Local sunshine: ~677 kWh/kWp · -5% vs IV40
IV53 (Highland)
≈10.8 km away
Local sunshine: ~678 kWh/kWp · -5% vs IV40
IV49 (Highland)
≈13.4 km away
Local sunshine: ~786 kWh/kWp · +10% vs IV40
IV54 (Highland)
≈15.3 km away
Local sunshine: ~689 kWh/kWp · -4% vs IV40

Similar sunshine across the UK

PA19 (Inverclyde)
~756 kWh/kWp · +5% vs IV40
DL11 (North Yorkshire)
~765 kWh/kWp · +7% vs IV40
G84 (Argyll and Bute)
~766 kWh/kWp · +7% vs IV40