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

Solar panel cost in South Ayrshire (KA8)

See realistic solar installation costs, savings and payback for KA8 (South 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
11.2 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£869
What you save every year
Profit Over 25 Years
£11,952
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: 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 Southern Scotland, the current unit rate is 25.85p/kWh with a 64.17p/day standing charge. Your postcode’s south-facing sunshine yield is 886 kWh/kW — 36 above 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 886 kWh per year on a south-facing roof. We value self-used electricity at 25.9p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.9p/kWh
Standing charge
64.2p/day
Sunshine yield (south)
886 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: £724, Upfront: £8,139, Break-even: 11.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1772 kWh 709 kWh 1063 kWh £183 £106 £290 £3,256 11.2 yrs £2,536
3 kW 2658 kWh 1063 kWh 1595 kWh £275 £159 £434 £4,883 11.2 yrs £3,804
4 kW 3544 kWh 1418 kWh 2127 kWh £366 £213 £579 £6,511 11.2 yrs £5,072
5 kW 4430 kWh 1772 kWh 2658 kWh £458 £266 £724 £8,139 11.2 yrs £6,340
6 kW 5317 kWh 2127 kWh 3190 kWh £550 £319 £869 £9,767 11.2 yrs £7,608
7 kW 6203 kWh 2481 kWh 3722 kWh £641 £372 £1,014 £11,394 11.2 yrs £8,876
8 kW 7089 kWh 2836 kWh 4253 kWh £733 £425 £1,158 £13,022 11.2 yrs £10,144

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: £864, Upfront: £10,239, Break-even: 11.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1772 kWh 1063 kWh 709 kWh £275 £71 £346 £5,356 15.5 yrs £1,560
3 kW 2658 kWh 1595 kWh 1063 kWh £412 £106 £519 £6,983 13.5 yrs £3,389
4 kW 3544 kWh 2127 kWh 1418 kWh £550 £142 £692 £8,611 12.5 yrs £5,219
5 kW 4430 kWh 2658 kWh 1772 kWh £687 £177 £864 £10,239 11.8 yrs £7,049
6 kW 5317 kWh 3190 kWh 2127 kWh £825 £213 £1,037 £11,867 11.4 yrs £8,879
7 kW 6203 kWh 3722 kWh 2481 kWh £962 £248 £1,210 £13,494 11.2 yrs £10,709
8 kW 7089 kWh 4253 kWh 2836 kWh £1,099 £284 £1,383 £15,122 10.9 yrs £12,538

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: £935, Upfront: £11,639, Break-even: 12.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1772 kWh 1241 kWh 532 kWh £321 £53 £374 £6,756 18.1 yrs £721
3 kW 2658 kWh 1861 kWh 797 kWh £481 £80 £561 £8,383 14.9 yrs £2,832
4 kW 3544 kWh 2481 kWh 1063 kWh £641 £106 £748 £10,011 13.4 yrs £4,943
5 kW 4430 kWh 3101 kWh 1329 kWh £802 £133 £935 £11,639 12.5 yrs £7,053
6 kW 5317 kWh 3722 kWh 1595 kWh £962 £159 £1,122 £13,267 11.8 yrs £9,164
7 kW 6203 kWh 4342 kWh 1861 kWh £1,122 £186 £1,308 £14,894 11.4 yrs £11,275
8 kW 7089 kWh 4962 kWh 2127 kWh £1,283 £213 £1,495 £16,522 11.0 yrs £13,386

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: £956, Upfront: £13,389, Break-even: 14.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1772 kWh 1294 kWh 478 kWh £334 £48 £382 £8,506 22.2 yrs £-860
3 kW 2658 kWh 1941 kWh 718 kWh £502 £72 £573 £10,133 17.7 yrs £1,335
4 kW 3544 kWh 2587 kWh 957 kWh £669 £96 £765 £11,761 15.4 yrs £3,530
5 kW 4430 kWh 3234 kWh 1196 kWh £836 £120 £956 £13,389 14.0 yrs £5,725
6 kW 5317 kWh 3881 kWh 1435 kWh £1,003 £144 £1,147 £15,017 13.1 yrs £7,920
7 kW 6203 kWh 4528 kWh 1675 kWh £1,170 £167 £1,338 £16,644 12.4 yrs £10,115
8 kW 7089 kWh 5175 kWh 1914 kWh £1,338 £191 £1,529 £18,272 11.9 yrs £12,310

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: £970, Upfront: £15,139, Break-even: 15.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1772 kWh 1329 kWh 443 kWh £344 £44 £388 £10,256 26.4 yrs £-2,498
3 kW 2658 kWh 1994 kWh 665 kWh £515 £66 £582 £11,883 20.4 yrs £-247
4 kW 3544 kWh 2658 kWh 886 kWh £687 £89 £776 £13,511 17.4 yrs £2,005
5 kW 4430 kWh 3323 kWh 1108 kWh £859 £111 £970 £15,139 15.6 yrs £4,256
6 kW 5317 kWh 3987 kWh 1329 kWh £1,031 £133 £1,164 £16,767 14.4 yrs £6,507
7 kW 6203 kWh 4652 kWh 1551 kWh £1,203 £155 £1,358 £18,394 13.5 yrs £8,758
8 kW 7089 kWh 5317 kWh 1772 kWh £1,374 £177 £1,552 £20,022 12.9 yrs £11,009

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: £984, Upfront: £17,589, 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 1772 kWh 1365 kWh 408 kWh £353 £41 £394 £12,706 32.3 yrs £-4,835
3 kW 2658 kWh 2047 kWh 611 kWh £529 £61 £590 £14,333 24.3 yrs £-2,528
4 kW 3544 kWh 2729 kWh 815 kWh £705 £82 £787 £15,961 20.3 yrs £-221
5 kW 4430 kWh 3411 kWh 1019 kWh £882 £102 £984 £17,589 17.9 yrs £2,087
6 kW 5317 kWh 4094 kWh 1223 kWh £1,058 £122 £1,181 £19,217 16.3 yrs £4,394
7 kW 6203 kWh 4776 kWh 1427 kWh £1,235 £143 £1,377 £20,844 15.1 yrs £6,701
8 kW 7089 kWh 5458 kWh 1630 kWh £1,411 £163 £1,574 £22,472 14.3 yrs £9,009

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 South Ayrshire

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.

Compare solar quotes before you sign

Check what MCS certification means

Understand DNO, G98 and G99 export limits

New quote check

Want a quote sanity check for KA8?

Share the first part of your postcode and a few basics. We’ll help you check whether system size, battery, export and paperwork assumptions look sensible before you commit to installer conversations.

This is a practical sanity-check request, not an instant quote promise. The Blue Ape quote route above remains available if you already want installer introductions.

Request a quote sanity check →

Insights for KA8

Figures below are tailored to KA8 — click through for full league tables.

Solar Payback Index Rank #2154 of 2996
11.2 years (UK avg 10.8 years)
~£869 /yr • £9,767 upfront
Standing-Charge Drag Rank #1717 of 2996
26.9% (UK avg 26.6%) drag on savings
£234 fixed • ~£869 /yr value
Aspect Penalty View ranking →
East −20.5% West −21.7%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in KA8

Monthly generation per kilowatt of solar panels

kWh 23 Jan 42 Feb 76 Mar 109 Apr 123 May 115 Jun 114 Jul 102 Aug 77 Sep 52 Oct 33 Nov 19 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 38.4% 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 28 kWh per month; the average month produces around 74 kWh. So a typical 4 kW home system would generate roughly 113 kWh in winter, or 295 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.85p/kWh
Daily Fixed Charge
64.17p/day
Local Sunshine
886kWh/kW
A 1 kW system generates ~886 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

South Ayrshire (100%)

Areas Covered

Ayr North, Ayr West, Prestwick

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 Southern Scotland

KA7 (South Ayrshire)
≈2.2 km away
Local sunshine: ~885 kWh/kWp · -0% vs KA8
KA9 (South Ayrshire)
≈3.1 km away
Local sunshine: ~889 kWh/kWp · +0% vs KA8
KA6 (East Ayrshire)
≈7.5 km away
Local sunshine: ~879 kWh/kWp · -1% vs KA8
KA10 (South Ayrshire)
≈8.9 km away
Local sunshine: ~883 kWh/kWp · -0% vs KA8
KA19 (South Ayrshire)
≈13.7 km away
Local sunshine: ~877 kWh/kWp · -1% vs KA8
KA2 (East Ayrshire)
≈14.8 km away
Local sunshine: ~865 kWh/kWp · -2% vs KA8

Similar sunshine across the UK

SA40 (Carmarthenshire)
~886 kWh/kWp · -0% vs KA8
LL33 (Conwy)
~886 kWh/kWp · +0% vs KA8
PH13 (Perth and Kinross)
~886 kWh/kWp · -0% vs KA8