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Solar panel cost in Renfrewshire (PA10)

See realistic solar installation costs, savings and payback for PA10 (Renfrewshire) 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
12.0 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£816
What you save every year
Profit Over 25 Years
£10,625
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 832 kWh/kW — 18 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 832 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)
832 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: £680, Upfront: £8,139, Break-even: 12.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1664 kWh 666 kWh 998 kWh £172 £100 £272 £3,256 12.0 yrs £2,182
3 kW 2496 kWh 998 kWh 1498 kWh £258 £150 £408 £4,883 12.0 yrs £3,273
4 kW 3328 kWh 1331 kWh 1997 kWh £344 £200 £544 £6,511 12.0 yrs £4,365
5 kW 4160 kWh 1664 kWh 2496 kWh £430 £250 £680 £8,139 12.0 yrs £5,456
6 kW 4992 kWh 1997 kWh 2995 kWh £516 £300 £816 £9,767 12.0 yrs £6,547
7 kW 5824 kWh 2330 kWh 3494 kWh £602 £349 £952 £11,394 12.0 yrs £7,638
8 kW 6656 kWh 2662 kWh 3994 kWh £688 £399 £1,088 £13,022 12.0 yrs £8,729

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: £812, Upfront: £10,239, Break-even: 12.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1664 kWh 998 kWh 666 kWh £258 £67 £325 £5,356 16.5 yrs £1,137
3 kW 2496 kWh 1498 kWh 998 kWh £387 £100 £487 £6,983 14.3 yrs £2,756
4 kW 3328 kWh 1997 kWh 1331 kWh £516 £133 £649 £8,611 13.3 yrs £4,375
5 kW 4160 kWh 2496 kWh 1664 kWh £645 £166 £812 £10,239 12.6 yrs £5,993
6 kW 4992 kWh 2995 kWh 1997 kWh £774 £200 £974 £11,867 12.2 yrs £7,612
7 kW 5824 kWh 3494 kWh 2330 kWh £903 £233 £1,136 £13,494 11.9 yrs £9,230
8 kW 6656 kWh 3994 kWh 2662 kWh £1,032 £266 £1,299 £15,122 11.6 yrs £10,849

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: £878, Upfront: £11,639, Break-even: 13.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1664 kWh 1165 kWh 499 kWh £301 £50 £351 £6,756 19.2 yrs £265
3 kW 2496 kWh 1747 kWh 749 kWh £452 £75 £527 £8,383 15.9 yrs £2,147
4 kW 3328 kWh 2330 kWh 998 kWh £602 £100 £702 £10,011 14.3 yrs £4,029
5 kW 4160 kWh 2912 kWh 1248 kWh £753 £125 £878 £11,639 13.3 yrs £5,912
6 kW 4992 kWh 3494 kWh 1498 kWh £903 £150 £1,053 £13,267 12.6 yrs £7,794
7 kW 5824 kWh 4077 kWh 1747 kWh £1,054 £175 £1,229 £14,894 12.1 yrs £9,677
8 kW 6656 kWh 4659 kWh 1997 kWh £1,204 £200 £1,404 £16,522 11.8 yrs £11,559

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: £897, Upfront: £13,389, 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 1664 kWh 1215 kWh 449 kWh £314 £45 £359 £8,506 23.7 yrs £-1,327
3 kW 2496 kWh 1822 kWh 674 kWh £471 £67 £538 £10,133 18.8 yrs £634
4 kW 3328 kWh 2429 kWh 899 kWh £628 £90 £718 £11,761 16.4 yrs £2,596
5 kW 4160 kWh 3037 kWh 1123 kWh £785 £112 £897 £13,389 14.9 yrs £4,557
6 kW 4992 kWh 3644 kWh 1348 kWh £942 £135 £1,077 £15,017 13.9 yrs £6,519
7 kW 5824 kWh 4251 kWh 1572 kWh £1,099 £157 £1,256 £16,644 13.2 yrs £8,480
8 kW 6656 kWh 4859 kWh 1797 kWh £1,256 £180 £1,436 £18,272 12.7 yrs £10,442

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: £910, Upfront: £15,139, Break-even: 16.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1664 kWh 1248 kWh 416 kWh £323 £42 £364 £10,256 28.2 yrs £-2,972
3 kW 2496 kWh 1872 kWh 624 kWh £484 £62 £546 £11,883 21.8 yrs £-957
4 kW 3328 kWh 2496 kWh 832 kWh £645 £83 £728 £13,511 18.5 yrs £1,057
5 kW 4160 kWh 3120 kWh 1040 kWh £807 £104 £910 £15,139 16.6 yrs £3,071
6 kW 4992 kWh 3744 kWh 1248 kWh £968 £125 £1,093 £16,767 15.3 yrs £5,085
7 kW 5824 kWh 4368 kWh 1456 kWh £1,129 £146 £1,275 £18,394 14.4 yrs £7,100
8 kW 6656 kWh 4992 kWh 1664 kWh £1,290 £166 £1,457 £20,022 13.7 yrs £9,114

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: £924, Upfront: £17,589, Break-even: 19.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1664 kWh 1281 kWh 383 kWh £331 £38 £369 £12,706 34.4 yrs £-5,316
3 kW 2496 kWh 1922 kWh 574 kWh £497 £57 £554 £14,333 25.9 yrs £-3,249
4 kW 3328 kWh 2562 kWh 765 kWh £662 £77 £739 £15,961 21.6 yrs £-1,182
5 kW 4160 kWh 3203 kWh 957 kWh £828 £96 £924 £17,589 19.0 yrs £885
6 kW 4992 kWh 3844 kWh 1148 kWh £994 £115 £1,108 £19,217 17.3 yrs £2,952
7 kW 5824 kWh 4484 kWh 1339 kWh £1,159 £134 £1,293 £20,844 16.1 yrs £5,019
8 kW 6656 kWh 5125 kWh 1531 kWh £1,325 £153 £1,478 £22,472 15.2 yrs £7,086

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 Renfrewshire

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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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.

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Insights for PA10

Figures below are tailored to PA10 — click through for full league tables.

Solar Payback Index Rank #2541 of 2996
12.0 years (UK avg 10.8 years)
~£816 /yr • £9,767 upfront
Standing-Charge Drag Rank #2009 of 2996
28.7% (UK avg 26.6%) drag on savings
£234 fixed • ~£816 /yr value
Aspect Penalty View ranking →
East −18.3% West −21.1%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in PA10

Monthly generation per kilowatt of solar panels

kWh 21 Jan 38 Feb 70 Mar 102 Apr 114 May 110 Jun 110 Jul 96 Aug 72 Sep 49 Oct 31 Nov 18 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 37.3% 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 69 kWh. So a typical 4 kW home system would generate roughly 103 kWh in winter, or 277 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.85p/kWh
Daily Fixed Charge
64.17p/day
Local Sunshine
832kWh/kW
A 1 kW system generates ~832 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

Renfrewshire (100%)

Areas Covered

Johnstone North, Kilbarchan, Howwood and Lochwinnoch, Johnstone South and Elderslie, 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

PA5 (Renfrewshire)
≈2.5 km away
Local sunshine: ~831 kWh/kWp · -0% vs PA10
PA9 (Renfrewshire)
≈2.7 km away
Local sunshine: ~825 kWh/kWp · -1% vs PA10
PA11 (Renfrewshire)
≈3.1 km away
Local sunshine: ~837 kWh/kWp · +1% vs PA10
PA6 (Renfrewshire)
≈3.3 km away
Local sunshine: ~832 kWh/kWp · -0% vs PA10
PA12 (Renfrewshire)
≈6.5 km away
Local sunshine: ~848 kWh/kWp · +2% vs PA10
PA3 (Renfrewshire)
≈7.1 km away
Local sunshine: ~834 kWh/kWp · +0% vs PA10

Similar sunshine across the UK

BT78 (Fermanagh and Omagh)
~832 kWh/kWp · +0% vs PA10
KW2 (Highland)
~832 kWh/kWp · +0% vs PA10
OL2 (Oldham)
~832 kWh/kWp · -0% vs PA10