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Solar panel cost in Inverclyde (PA13)

See realistic solar installation costs, savings and payback for PA13 (Inverclyde) 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
11.8 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£826
What you save every year
Profit Over 25 Years
£10,882
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 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 842 kWh/kW — 7 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 842 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)
842 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: £688, Upfront: £8,139, 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 1685 kWh 674 kWh 1011 kWh £174 £101 £275 £3,256 11.8 yrs £2,251
3 kW 2527 kWh 1011 kWh 1516 kWh £261 £152 £413 £4,883 11.8 yrs £3,376
4 kW 3370 kWh 1348 kWh 2022 kWh £348 £202 £551 £6,511 11.8 yrs £4,502
5 kW 4212 kWh 1685 kWh 2527 kWh £436 £253 £688 £8,139 11.8 yrs £5,627
6 kW 5055 kWh 2022 kWh 3033 kWh £523 £303 £826 £9,767 11.8 yrs £6,752
7 kW 5897 kWh 2359 kWh 3538 kWh £610 £354 £964 £11,394 11.8 yrs £7,878
8 kW 6740 kWh 2696 kWh 4044 kWh £697 £404 £1,101 £13,022 11.8 yrs £9,003

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: £822, Upfront: £10,239, 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 1685 kWh 1011 kWh 674 kWh £261 £67 £329 £5,356 16.3 yrs £1,219
3 kW 2527 kWh 1516 kWh 1011 kWh £392 £101 £493 £6,983 14.2 yrs £2,879
4 kW 3370 kWh 2022 kWh 1348 kWh £523 £135 £657 £8,611 13.1 yrs £4,538
5 kW 4212 kWh 2527 kWh 1685 kWh £653 £168 £822 £10,239 12.5 yrs £6,198
6 kW 5055 kWh 3033 kWh 2022 kWh £784 £202 £986 £11,867 12.0 yrs £7,857
7 kW 5897 kWh 3538 kWh 2359 kWh £915 £236 £1,151 £13,494 11.7 yrs £9,517
8 kW 6740 kWh 4044 kWh 2696 kWh £1,045 £270 £1,315 £15,122 11.5 yrs £11,176

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: £889, Upfront: £11,639, Break-even: 13.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1685 kWh 1179 kWh 505 kWh £305 £51 £355 £6,756 19.0 yrs £353
3 kW 2527 kWh 1769 kWh 758 kWh £457 £76 £533 £8,383 15.7 yrs £2,280
4 kW 3370 kWh 2359 kWh 1011 kWh £610 £101 £711 £10,011 14.1 yrs £4,206
5 kW 4212 kWh 2949 kWh 1264 kWh £762 £126 £889 £11,639 13.1 yrs £6,133
6 kW 5055 kWh 3538 kWh 1516 kWh £915 £152 £1,066 £13,267 12.4 yrs £8,059
7 kW 5897 kWh 4128 kWh 1769 kWh £1,067 £177 £1,244 £14,894 12.0 yrs £9,986
8 kW 6740 kWh 4718 kWh 2022 kWh £1,220 £202 £1,422 £16,522 11.6 yrs £11,913

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: £909, Upfront: £13,389, Break-even: 14.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1685 kWh 1230 kWh 455 kWh £318 £45 £363 £8,506 23.4 yrs £-1,237
3 kW 2527 kWh 1845 kWh 682 kWh £477 £68 £545 £10,133 18.6 yrs £770
4 kW 3370 kWh 2460 kWh 910 kWh £636 £91 £727 £11,761 16.2 yrs £2,777
5 kW 4212 kWh 3075 kWh 1137 kWh £795 £114 £909 £13,389 14.7 yrs £4,783
6 kW 5055 kWh 3690 kWh 1365 kWh £954 £136 £1,090 £15,017 13.8 yrs £6,790
7 kW 5897 kWh 4305 kWh 1592 kWh £1,113 £159 £1,272 £16,644 13.1 yrs £8,797
8 kW 6740 kWh 4920 kWh 1820 kWh £1,272 £182 £1,454 £18,272 12.6 yrs £10,804

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: £922, Upfront: £15,139, 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 1685 kWh 1264 kWh 421 kWh £327 £42 £369 £10,256 27.8 yrs £-2,880
3 kW 2527 kWh 1896 kWh 632 kWh £490 £63 £553 £11,883 21.5 yrs £-820
4 kW 3370 kWh 2527 kWh 842 kWh £653 £84 £738 £13,511 18.3 yrs £1,240
5 kW 4212 kWh 3159 kWh 1053 kWh £817 £105 £922 £15,139 16.4 yrs £3,301
6 kW 5055 kWh 3791 kWh 1264 kWh £980 £126 £1,106 £16,767 15.2 yrs £5,361
7 kW 5897 kWh 4423 kWh 1474 kWh £1,143 £147 £1,291 £18,394 14.3 yrs £7,421
8 kW 6740 kWh 5055 kWh 1685 kWh £1,307 £168 £1,475 £20,022 13.6 yrs £9,481

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: £935, Upfront: £17,589, Break-even: 18.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1685 kWh 1297 kWh 388 kWh £335 £39 £374 £12,706 34.0 yrs £-5,223
3 kW 2527 kWh 1946 kWh 581 kWh £503 £58 £561 £14,333 25.5 yrs £-3,109
4 kW 3370 kWh 2595 kWh 775 kWh £671 £78 £748 £15,961 21.3 yrs £-996
5 kW 4212 kWh 3243 kWh 969 kWh £838 £97 £935 £17,589 18.8 yrs £1,118
6 kW 5055 kWh 3892 kWh 1163 kWh £1,006 £116 £1,122 £19,217 17.1 yrs £3,231
7 kW 5897 kWh 4541 kWh 1356 kWh £1,174 £136 £1,309 £20,844 15.9 yrs £5,345
8 kW 6740 kWh 5190 kWh 1550 kWh £1,341 £155 £1,497 £22,472 15.0 yrs £7,458

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 Inverclyde

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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Check what MCS certification means

Understand DNO, G98 and G99 export limits

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Insights for PA13

Figures below are tailored to PA13 — click through for full league tables.

Solar Payback Index Rank #2415 of 2996
11.8 years (UK avg 10.8 years)
~£825 /yr • £9,767 upfront
Standing-Charge Drag Rank #1926 of 2996
28.4% (UK avg 26.6%) drag on savings
£234 fixed • ~£825 /yr value
Aspect Penalty View ranking →
East −18.6% West −21.7%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in PA13

Monthly generation per kilowatt of solar panels

kWh 23 Jan 39 Feb 71 Mar 103 Apr 116 May 112 Jun 112 Jul 97 Aug 73 Sep 49 Oct 30 Nov 18 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 37.6% 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 26 kWh per month; the average month produces around 70 kWh. So a typical 4 kW home system would generate roughly 106 kWh in winter, or 281 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.85p/kWh
Daily Fixed Charge
64.17p/day
Local Sunshine
842kWh/kW
A 1 kW system generates ~842 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

Inverclyde (88%)|Renfrewshire (12%)

Areas Covered

Inverclyde East, Bishopton, Bridge of Weir and Langbank

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

PA14 (Inverclyde)
≈4.6 km away
Local sunshine: ~772 kWh/kWp · -8% vs PA13
PA11 (Renfrewshire)
≈5.2 km away
Local sunshine: ~837 kWh/kWp · -1% vs PA13
PA6 (Renfrewshire)
≈6.7 km away
Local sunshine: ~832 kWh/kWp · -1% vs PA13
G82 (West Dunbartonshire)
≈7.1 km away
Local sunshine: ~836 kWh/kWp · -1% vs PA13
PA7 (Renfrewshire)
≈7.9 km away
Local sunshine: ~845 kWh/kWp · +0% vs PA13
PA10 (Renfrewshire)
≈8.3 km away
Local sunshine: ~832 kWh/kWp · -1% vs PA13

Similar sunshine across the UK

BT53 (Causeway Coast and Glens)
~842 kWh/kWp · +0% vs PA13
OL12 (Rochdale)
~843 kWh/kWp · +0% vs PA13
BT92 (Fermanagh and Omagh)
~843 kWh/kWp · +0% vs PA13