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Solar panel cost in Renfrewshire (PA98)

See realistic solar installation costs, savings and payback for PA98 (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
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
£10,889
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 843 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 843 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)
843 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: £689, 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 £2,252
3 kW 2528 kWh 1011 kWh 1517 kWh £261 £152 £413 £4,883 11.8 yrs £3,379
4 kW 3371 kWh 1348 kWh 2023 kWh £349 £202 £551 £6,511 11.8 yrs £4,505
5 kW 4214 kWh 1685 kWh 2528 kWh £436 £253 £689 £8,139 11.8 yrs £5,631
6 kW 5056 kWh 2023 kWh 3034 kWh £523 £303 £826 £9,767 11.8 yrs £6,757
7 kW 5899 kWh 2360 kWh 3539 kWh £610 £354 £964 £11,394 11.8 yrs £7,884
8 kW 6742 kWh 2697 kWh 4045 kWh £697 £405 £1,102 £13,022 11.8 yrs £9,010

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 £1,221
3 kW 2528 kWh 1517 kWh 1011 kWh £392 £101 £493 £6,983 14.2 yrs £2,882
4 kW 3371 kWh 2023 kWh 1348 kWh £523 £135 £658 £8,611 13.1 yrs £4,542
5 kW 4214 kWh 2528 kWh 1685 kWh £654 £169 £822 £10,239 12.5 yrs £6,203
6 kW 5056 kWh 3034 kWh 2023 kWh £784 £202 £986 £11,867 12.0 yrs £7,863
7 kW 5899 kWh 3539 kWh 2360 kWh £915 £236 £1,151 £13,494 11.7 yrs £9,524
8 kW 6742 kWh 4045 kWh 2697 kWh £1,046 £270 £1,315 £15,122 11.5 yrs £11,184

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 1180 kWh 506 kWh £305 £51 £356 £6,756 19.0 yrs £355
3 kW 2528 kWh 1770 kWh 758 kWh £457 £76 £533 £8,383 15.7 yrs £2,283
4 kW 3371 kWh 2360 kWh 1011 kWh £610 £101 £711 £10,011 14.1 yrs £4,211
5 kW 4214 kWh 2950 kWh 1264 kWh £762 £126 £889 £11,639 13.1 yrs £6,138
6 kW 5056 kWh 3539 kWh 1517 kWh £915 £152 £1,067 £13,267 12.4 yrs £8,066
7 kW 5899 kWh 4129 kWh 1770 kWh £1,067 £177 £1,244 £14,894 12.0 yrs £9,994
8 kW 6742 kWh 4719 kWh 2023 kWh £1,220 £202 £1,422 £16,522 11.6 yrs £11,921

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 £46 £364 £8,506 23.4 yrs £-1,234
3 kW 2528 kWh 1846 kWh 683 kWh £477 £68 £545 £10,133 18.6 yrs £773
4 kW 3371 kWh 2461 kWh 910 kWh £636 £91 £727 £11,761 16.2 yrs £2,781
5 kW 4214 kWh 3076 kWh 1138 kWh £795 £114 £909 £13,389 14.7 yrs £4,789
6 kW 5056 kWh 3691 kWh 1365 kWh £954 £137 £1,091 £15,017 13.8 yrs £6,797
7 kW 5899 kWh 4306 kWh 1593 kWh £1,113 £159 £1,272 £16,644 13.1 yrs £8,805
8 kW 6742 kWh 4921 kWh 1820 kWh £1,272 £182 £1,454 £18,272 12.6 yrs £10,813

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 £-2,878
3 kW 2528 kWh 1896 kWh 632 kWh £490 £63 £553 £11,883 21.5 yrs £-816
4 kW 3371 kWh 2528 kWh 843 kWh £654 £84 £738 £13,511 18.3 yrs £1,245
5 kW 4214 kWh 3160 kWh 1053 kWh £817 £105 £922 £15,139 16.4 yrs £3,306
6 kW 5056 kWh 3792 kWh 1264 kWh £980 £126 £1,107 £16,767 15.2 yrs £5,367
7 kW 5899 kWh 4424 kWh 1475 kWh £1,144 £147 £1,291 £18,394 14.2 yrs £7,429
8 kW 6742 kWh 5056 kWh 1685 kWh £1,307 £169 £1,476 £20,022 13.6 yrs £9,490

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: £936, 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 1298 kWh 388 kWh £335 £39 £374 £12,706 33.9 yrs £-5,221
3 kW 2528 kWh 1947 kWh 581 kWh £503 £58 £561 £14,333 25.5 yrs £-3,106
4 kW 3371 kWh 2596 kWh 775 kWh £671 £78 £748 £15,961 21.3 yrs £-991
5 kW 4214 kWh 3244 kWh 969 kWh £839 £97 £936 £17,589 18.8 yrs £1,123
6 kW 5056 kWh 3893 kWh 1163 kWh £1,006 £116 £1,123 £19,217 17.1 yrs £3,238
7 kW 5899 kWh 4542 kWh 1357 kWh £1,174 £136 £1,310 £20,844 15.9 yrs £5,353
8 kW 6742 kWh 5191 kWh 1551 kWh £1,342 £155 £1,497 £22,472 15.0 yrs £7,467

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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Understand DNO, G98 and G99 export limits

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Insights for PA98

Figures below are tailored to PA98 — click through for full league tables.

Solar Payback Index Rank #2418 of 2996
11.8 years (UK avg 10.8 years)
~£826 /yr • £9,767 upfront
Standing-Charge Drag Rank #1912 of 2996
28.3% (UK avg 26.6%) drag on savings
£234 fixed • ~£826 /yr value
Aspect Penalty View ranking →
East −19.3% West −21.1%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in PA98

Monthly generation per kilowatt of solar panels

kWh 23 Jan 40 Feb 70 Mar 102 Apr 115 May 110 Jun 110 Jul 97 Aug 74 Sep 50 Oct 32 Nov 19 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 39.0% 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 27 kWh per month; the average month produces around 70 kWh. So a typical 4 kW home system would generate roughly 110 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
843kWh/kW
A 1 kW system generates ~843 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

Paisley Northwest

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

PA3 (Renfrewshire)
≈1.3 km away
Local sunshine: ~834 kWh/kWp · -1% vs PA98
PA1 (Renfrewshire)
≈1.8 km away
Local sunshine: ~838 kWh/kWp · -1% vs PA98
PA4 (Renfrewshire)
≈3.0 km away
Local sunshine: ~835 kWh/kWp · -1% vs PA98
PA2 (Renfrewshire)
≈3.4 km away
Local sunshine: ~825 kWh/kWp · -2% vs PA98
G52 (Glasgow City)
≈4.8 km away
Local sunshine: ~837 kWh/kWp · -1% vs PA98
PA8 (Renfrewshire)
≈4.8 km away
Local sunshine: ~846 kWh/kWp · +0% vs PA98

Similar sunshine across the UK

BT92 (Fermanagh and Omagh)
~843 kWh/kWp · +0% vs PA98
OL12 (Rochdale)
~843 kWh/kWp · -0% vs PA98
BT53 (Causeway Coast and Glens)
~842 kWh/kWp · -0% vs PA98