Solar panel cost in Glasgow City (G12)

See realistic solar installation costs, savings and payback for G12 (Glasgow City) 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
16.2 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£754
What you save every year
Profit Over 25 Years
£6,636
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: 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

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 830 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)
830 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: £628, Upfront: £10,173, Break-even: 16.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1661 kWh 664 kWh 996 kWh £152 £100 £251 £4,069 16.2 yrs £956
3 kW 2491 kWh 996 kWh 1495 kWh £227 £149 £377 £6,104 16.2 yrs £1,434
4 kW 3322 kWh 1329 kWh 1993 kWh £303 £199 £502 £8,138 16.2 yrs £1,912
5 kW 4152 kWh 1661 kWh 2491 kWh £379 £249 £628 £10,173 16.2 yrs £2,390
6 kW 4982 kWh 1993 kWh 2989 kWh £455 £299 £754 £12,207 16.2 yrs £2,868
7 kW 5813 kWh 2325 kWh 3488 kWh £531 £349 £879 £14,242 16.2 yrs £3,346
8 kW 6643 kWh 2657 kWh 3986 kWh £606 £399 £1,005 £16,276 16.2 yrs £3,824

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: £735, Upfront: £12,273, Break-even: 16.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1661 kWh 996 kWh 664 kWh £227 £66 £294 £6,169 21.0 yrs £-292
3 kW 2491 kWh 1495 kWh 996 kWh £341 £100 £441 £8,204 18.6 yrs £611
4 kW 3322 kWh 1993 kWh 1329 kWh £455 £133 £588 £10,238 17.4 yrs £1,515
5 kW 4152 kWh 2491 kWh 1661 kWh £568 £166 £735 £12,273 16.7 yrs £2,419
6 kW 4982 kWh 2989 kWh 1993 kWh £682 £199 £881 £14,307 16.2 yrs £3,323
7 kW 5813 kWh 3488 kWh 2325 kWh £796 £233 £1,028 £16,342 15.9 yrs £4,226
8 kW 6643 kWh 3986 kWh 2657 kWh £910 £266 £1,175 £18,376 15.6 yrs £5,130

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: £788, Upfront: £13,673, Break-even: 17.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1661 kWh 1163 kWh 498 kWh £265 £50 £315 £7,569 24.0 yrs £-1,267
3 kW 2491 kWh 1744 kWh 747 kWh £398 £75 £473 £9,604 20.3 yrs £-150
4 kW 3322 kWh 2325 kWh 996 kWh £531 £100 £630 £11,638 18.5 yrs £967
5 kW 4152 kWh 2906 kWh 1246 kWh £663 £125 £788 £13,673 17.4 yrs £2,083
6 kW 4982 kWh 3488 kWh 1495 kWh £796 £149 £945 £15,707 16.6 yrs £3,200
7 kW 5813 kWh 4069 kWh 1744 kWh £929 £174 £1,103 £17,742 16.1 yrs £4,317
8 kW 6643 kWh 4650 kWh 1993 kWh £1,061 £199 £1,260 £19,776 15.7 yrs £5,434

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: £804, Upfront: £15,423, Break-even: 19.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1661 kWh 1212 kWh 448 kWh £277 £45 £322 £9,319 29.0 yrs £-2,889
3 kW 2491 kWh 1819 kWh 673 kWh £415 £67 £482 £11,354 23.5 yrs £-1,708
4 kW 3322 kWh 2425 kWh 897 kWh £553 £90 £643 £13,388 20.8 yrs £-528
5 kW 4152 kWh 3031 kWh 1121 kWh £692 £112 £804 £15,423 19.2 yrs £653
6 kW 4982 kWh 3637 kWh 1345 kWh £830 £135 £965 £17,457 18.1 yrs £1,833
7 kW 5813 kWh 4243 kWh 1569 kWh £968 £157 £1,125 £19,492 17.3 yrs £3,014
8 kW 6643 kWh 4850 kWh 1794 kWh £1,107 £179 £1,286 £21,526 16.7 yrs £4,195

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: £814, Upfront: £17,173, Break-even: 21.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1661 kWh 1246 kWh 415 kWh £284 £42 £326 £11,069 34.0 yrs £-4,554
3 kW 2491 kWh 1868 kWh 623 kWh £426 £62 £489 £13,104 26.8 yrs £-3,331
4 kW 3322 kWh 2491 kWh 830 kWh £568 £83 £652 £15,138 23.2 yrs £-2,107
5 kW 4152 kWh 3114 kWh 1038 kWh £711 £104 £814 £17,173 21.1 yrs £-884
6 kW 4982 kWh 3737 kWh 1246 kWh £853 £125 £977 £19,207 19.7 yrs £339
7 kW 5813 kWh 4360 kWh 1453 kWh £995 £145 £1,140 £21,242 18.6 yrs £1,562
8 kW 6643 kWh 4982 kWh 1661 kWh £1,137 £166 £1,303 £23,276 17.9 yrs £2,785

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: £825, Upfront: £19,623, Break-even: 23.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1661 kWh 1279 kWh 382 kWh £292 £38 £330 £13,519 41.0 yrs £-6,919
3 kW 2491 kWh 1918 kWh 573 kWh £438 £57 £495 £15,554 31.4 yrs £-5,653
4 kW 3322 kWh 2558 kWh 764 kWh £584 £76 £660 £17,588 26.6 yrs £-4,387
5 kW 4152 kWh 3197 kWh 955 kWh £730 £95 £825 £19,623 23.8 yrs £-3,121
6 kW 4982 kWh 3836 kWh 1146 kWh £875 £115 £990 £21,657 21.9 yrs £-1,856
7 kW 5813 kWh 4476 kWh 1337 kWh £1,021 £134 £1,155 £23,692 20.5 yrs £-590
8 kW 6643 kWh 5115 kWh 1528 kWh £1,167 £153 £1,320 £25,726 19.5 yrs £676

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.

Seasonal solar output in G12

Monthly generation per kilowatt of solar panels

kWh 23 Jan 40 Feb 70 Mar 100 Apr 112 May 107 Jun 108 Jul 94 Aug 73 Sep 51 Oct 32 Nov 19 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 39.6% 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 27 kWh per month; the average month produces around 69 kWh. So a typical 4 kW home system would generate roughly 110 kWh in winter, or 277 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
22.82p/kWh
Daily Fixed Charge
64.81p/day
Local Sunshine
830kWh/kW
A 1 kW system generates ~830 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

Glasgow City (100%)

Areas Covered

Partick East/Kelvindale, Hillhead, Victoria Park

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.