Independent solar numbers for your postcode using official UK data
Home Regions Guides Get quote
Insights
Big Roof Britain Solar Payback Index Standing Charge Drag Roof Direction Penalty Winter Solar Reality Seasonal Solar Output

Solar panel cost in North Ayrshire (KA29)

See realistic solar installation costs, savings and payback for KA29 (North Ayrshire) 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
15.9 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£767
What you save every year
Profit Over 25 Years
£6,959
After paying itself off, you're this much ahead

Ready to Get Started?

Get your free quote from Blue Ape Renewables. They'll connect you with MCS-certified installers in your area and handle all the paperwork.

Get Solar Quote →
4.8★ Trustpilot • Octopus Energy trusted partner • MCS certified • No obligation
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 Southern Scotland, the current unit rate is 22.82p/kWh with a 64.81p/day standing charge. Your postcode’s south-facing sunshine yield is 845 kWh/kW — 5 below the regional median (850).

Read the full story

A typical roof here lands around 6.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 845 kWh per year on a south-facing roof. We value self-used electricity at 22.8p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
22.8p/kWh
Standing charge
64.8p/day
Sunshine yield (south)
845 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: £639, Upfront: £10,173, Break-even: 15.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1689 kWh 676 kWh 1014 kWh £154 £101 £256 £4,069 15.9 yrs £1,042
3 kW 2534 kWh 1014 kWh 1520 kWh £231 £152 £383 £6,104 15.9 yrs £1,563
4 kW 3378 kWh 1351 kWh 2027 kWh £308 £203 £511 £8,138 15.9 yrs £2,084
5 kW 4223 kWh 1689 kWh 2534 kWh £385 £253 £639 £10,173 15.9 yrs £2,605
6 kW 5068 kWh 2027 kWh 3041 kWh £463 £304 £767 £12,207 15.9 yrs £3,125
7 kW 5912 kWh 2365 kWh 3547 kWh £540 £355 £894 £14,242 15.9 yrs £3,646
8 kW 6757 kWh 2703 kWh 4054 kWh £617 £405 £1,022 £16,276 15.9 yrs £4,167

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: £747, Upfront: £12,273, Break-even: 16.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1689 kWh 1014 kWh 676 kWh £231 £68 £299 £6,169 20.6 yrs £-192
3 kW 2534 kWh 1520 kWh 1014 kWh £347 £101 £448 £8,204 18.3 yrs £762
4 kW 3378 kWh 2027 kWh 1351 kWh £463 £135 £598 £10,238 17.1 yrs £1,716
5 kW 4223 kWh 2534 kWh 1689 kWh £578 £169 £747 £12,273 16.4 yrs £2,670
6 kW 5068 kWh 3041 kWh 2027 kWh £694 £203 £897 £14,307 16.0 yrs £3,624
7 kW 5912 kWh 3547 kWh 2365 kWh £809 £236 £1,046 £16,342 15.6 yrs £4,578
8 kW 6757 kWh 4054 kWh 2703 kWh £925 £270 £1,195 £18,376 15.4 yrs £5,532

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: £801, Upfront: £13,673, 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 1689 kWh 1182 kWh 507 kWh £270 £51 £321 £7,569 23.6 yrs £-1,159
3 kW 2534 kWh 1774 kWh 760 kWh £405 £76 £481 £9,604 20.0 yrs £12
4 kW 3378 kWh 2365 kWh 1014 kWh £540 £101 £641 £11,638 18.2 yrs £1,182
5 kW 4223 kWh 2956 kWh 1267 kWh £675 £127 £801 £13,673 17.1 yrs £2,353
6 kW 5068 kWh 3547 kWh 1520 kWh £809 £152 £962 £15,707 16.3 yrs £3,523
7 kW 5912 kWh 4139 kWh 1774 kWh £944 £177 £1,122 £17,742 15.8 yrs £4,694
8 kW 6757 kWh 4730 kWh 2027 kWh £1,079 £203 £1,282 £19,776 15.4 yrs £5,865

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: £818, Upfront: £15,423, 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 1689 kWh 1233 kWh 456 kWh £281 £46 £327 £9,319 28.5 yrs £-2,779
3 kW 2534 kWh 1850 kWh 684 kWh £422 £68 £491 £11,354 23.1 yrs £-1,543
4 kW 3378 kWh 2466 kWh 912 kWh £563 £91 £654 £13,388 20.5 yrs £-308
5 kW 4223 kWh 3083 kWh 1140 kWh £703 £114 £818 £15,423 18.9 yrs £928
6 kW 5068 kWh 3699 kWh 1368 kWh £844 £137 £981 £17,457 17.8 yrs £2,163
7 kW 5912 kWh 4316 kWh 1596 kWh £985 £160 £1,145 £19,492 17.0 yrs £3,399
8 kW 6757 kWh 4932 kWh 1824 kWh £1,126 £182 £1,308 £21,526 16.5 yrs £4,634

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: £828, Upfront: £17,173, Break-even: 20.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1689 kWh 1267 kWh 422 kWh £289 £42 £331 £11,069 33.4 yrs £-4,442
3 kW 2534 kWh 1900 kWh 633 kWh £434 £63 £497 £13,104 26.4 yrs £-3,163
4 kW 3378 kWh 2534 kWh 845 kWh £578 £84 £663 £15,138 22.8 yrs £-1,885
5 kW 4223 kWh 3167 kWh 1056 kWh £723 £106 £828 £17,173 20.7 yrs £-606
6 kW 5068 kWh 3801 kWh 1267 kWh £867 £127 £994 £19,207 19.3 yrs £673
7 kW 5912 kWh 4434 kWh 1478 kWh £1,012 £148 £1,160 £21,242 18.3 yrs £1,952
8 kW 6757 kWh 5068 kWh 1689 kWh £1,156 £169 £1,325 £23,276 17.6 yrs £3,231

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: £839, Upfront: £19,623, Break-even: 23.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1689 kWh 1301 kWh 389 kWh £297 £39 £336 £13,519 40.3 yrs £-6,806
3 kW 2534 kWh 1951 kWh 583 kWh £445 £58 £504 £15,554 30.9 yrs £-5,483
4 kW 3378 kWh 2601 kWh 777 kWh £594 £78 £671 £17,588 26.2 yrs £-4,161
5 kW 4223 kWh 3252 kWh 971 kWh £742 £97 £839 £19,623 23.4 yrs £-2,839
6 kW 5068 kWh 3902 kWh 1166 kWh £890 £117 £1,007 £21,657 21.5 yrs £-1,517
7 kW 5912 kWh 4552 kWh 1360 kWh £1,039 £136 £1,175 £23,692 20.2 yrs £-195
8 kW 6757 kWh 5203 kWh 1554 kWh £1,187 £155 £1,343 £25,726 19.2 yrs £1,127

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 KA29

Figures below are tailored to KA29 — click through for full league tables.

Solar Payback Index Rank #2747 of 2997
14.3 years (UK avg 12.6 years)
~£855 /yr • £12,207 upfront
Standing-Charge Drag Rank #1768 of 2997
24.6% (UK avg 24.6%) drag on savings
£210 fixed • ~£855 /yr value
Aspect Penalty View ranking →
East −18.1% West −23.5%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in KA29

Monthly generation per kilowatt of solar panels

kWh 19 Jan 37 Feb 71 Mar 107 Apr 120 May 114 Jun 113 Jul 100 Aug 73 Sep 49 Oct 27 Nov 15 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 33.4% 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 23 kWh per month; the average month produces around 70 kWh. So a typical 4 kW home system would generate roughly 94 kWh in winter, or 282 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
22.82p/kWh
Daily Fixed Charge
64.81p/day
Local Sunshine
845kWh/kW
A 1 kW system generates ~845 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
6.0kW
For houses & bungalows in this area

Local Property Data

Property Types

No EPC data available for this outcode

Coverage

North Ayrshire (100%)

Areas Covered

North Coast

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 Southern Scotland

KA30 (North Ayrshire)
≈4.3 km away
Local sunshine: ~851 kWh/kWp · +1% vs KA29
KA23 (North Ayrshire)
≈7.1 km away
Local sunshine: ~878 kWh/kWp · +4% vs KA29
KA24 (North Ayrshire)
≈10.0 km away
Local sunshine: ~892 kWh/kWp · +6% vs KA29
KA25 (North Ayrshire)
≈10.4 km away
Local sunshine: ~856 kWh/kWp · +1% vs KA29
KA14 (North Ayrshire)
≈11.4 km away
Local sunshine: ~878 kWh/kWp · +4% vs KA29
KA22 (North Ayrshire)
≈12.3 km away
Local sunshine: ~866 kWh/kWp · +3% vs KA29

Similar sunshine across the UK

M43 (Tameside)
~845 kWh/kWp · +0% vs KA29
M34 (Tameside)
~845 kWh/kWp · +0% vs KA29
PA21 (Argyll and Bute)
~844 kWh/kWp · -0% vs KA29