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Solar Panels in G31 (Glasgow City)

See if solar pays off for you in Glasgow City — price, savings and payback in under a minute (official UK data).

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
14.9 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£818
What you save every year
Profit Over 25 Years
£8,235
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

In Southern Scotland, the current unit rate is 25.84p/kWh with a 56.55p/day standing charge. Your postcode’s south-facing sunshine yield is 834 kWh/kW — 16 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 834 kWh per year on a south-facing roof. We value self-used electricity at 25.8p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.8p/kWh
Standing charge
56.5p/day
Sunshine yield (south)
834 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: £681, Upfront: £10,173, 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 1668 kWh 667 kWh 1001 kWh £172 £100 £273 £4,069 14.9 yrs £1,382
3 kW 2503 kWh 1001 kWh 1502 kWh £259 £150 £409 £6,104 14.9 yrs £2,073
4 kW 3337 kWh 1335 kWh 2002 kWh £345 £200 £545 £8,138 14.9 yrs £2,765
5 kW 4171 kWh 1668 kWh 2503 kWh £431 £250 £681 £10,173 14.9 yrs £3,456
6 kW 5006 kWh 2002 kWh 3003 kWh £517 £300 £818 £12,207 14.9 yrs £4,147
7 kW 5840 kWh 2336 kWh 3504 kWh £604 £350 £954 £14,242 14.9 yrs £4,838
8 kW 6674 kWh 2670 kWh 4004 kWh £690 £400 £1,090 £16,276 14.9 yrs £5,529

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: £814, Upfront: £12,273, Break-even: 15.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1668 kWh 1001 kWh 667 kWh £259 £67 £325 £6,169 19.0 yrs £339
3 kW 2503 kWh 1502 kWh 1001 kWh £388 £100 £488 £8,204 16.8 yrs £1,559
4 kW 3337 kWh 2002 kWh 1335 kWh £517 £133 £651 £10,238 15.7 yrs £2,779
5 kW 4171 kWh 2503 kWh 1668 kWh £647 £167 £814 £12,273 15.1 yrs £3,999
6 kW 5006 kWh 3003 kWh 2002 kWh £776 £200 £976 £14,307 14.7 yrs £5,218
7 kW 5840 kWh 3504 kWh 2336 kWh £905 £234 £1,139 £16,342 14.3 yrs £6,438
8 kW 6674 kWh 4004 kWh 2670 kWh £1,035 £267 £1,302 £18,376 14.1 yrs £7,658

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: £880, Upfront: £13,673, Break-even: 15.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1668 kWh 1168 kWh 501 kWh £302 £50 £352 £7,569 21.5 yrs £-532
3 kW 2503 kWh 1752 kWh 751 kWh £453 £75 £528 £9,604 18.2 yrs £952
4 kW 3337 kWh 2336 kWh 1001 kWh £604 £100 £704 £11,638 16.5 yrs £2,436
5 kW 4171 kWh 2920 kWh 1251 kWh £754 £125 £880 £13,673 15.5 yrs £3,920
6 kW 5006 kWh 3504 kWh 1502 kWh £905 £150 £1,056 £15,707 14.9 yrs £5,404
7 kW 5840 kWh 4088 kWh 1752 kWh £1,056 £175 £1,231 £17,742 14.4 yrs £6,888
8 kW 6674 kWh 4672 kWh 2002 kWh £1,207 £200 £1,407 £19,776 14.1 yrs £8,372

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: £899, Upfront: £15,423, Break-even: 17.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1668 kWh 1218 kWh 450 kWh £315 £45 £360 £9,319 25.9 yrs £-2,123
3 kW 2503 kWh 1827 kWh 676 kWh £472 £68 £540 £11,354 21.0 yrs £-560
4 kW 3337 kWh 2436 kWh 901 kWh £629 £90 £720 £13,388 18.6 yrs £1,003
5 kW 4171 kWh 3045 kWh 1126 kWh £787 £113 £899 £15,423 17.1 yrs £2,567
6 kW 5006 kWh 3654 kWh 1351 kWh £944 £135 £1,079 £17,457 16.2 yrs £4,130
7 kW 5840 kWh 4263 kWh 1577 kWh £1,102 £158 £1,259 £19,492 15.5 yrs £5,693
8 kW 6674 kWh 4872 kWh 1802 kWh £1,259 £180 £1,439 £21,526 15.0 yrs £7,256

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: £913, Upfront: £17,173, 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 1668 kWh 1251 kWh 417 kWh £323 £42 £365 £11,069 30.3 yrs £-3,768
3 kW 2503 kWh 1877 kWh 626 kWh £485 £63 £548 £13,104 23.9 yrs £-2,151
4 kW 3337 kWh 2503 kWh 834 kWh £647 £83 £730 £15,138 20.7 yrs £-535
5 kW 4171 kWh 3128 kWh 1043 kWh £808 £104 £913 £17,173 18.8 yrs £1,081
6 kW 5006 kWh 3754 kWh 1251 kWh £970 £125 £1,095 £19,207 17.5 yrs £2,697
7 kW 5840 kWh 4380 kWh 1460 kWh £1,132 £146 £1,278 £21,242 16.6 yrs £4,313
8 kW 6674 kWh 5006 kWh 1668 kWh £1,293 £167 £1,460 £23,276 15.9 yrs £5,929

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: £926, Upfront: £19,623, Break-even: 21.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1668 kWh 1285 kWh 384 kWh £332 £38 £370 £13,519 36.5 yrs £-6,112
3 kW 2503 kWh 1927 kWh 576 kWh £498 £58 £556 £15,554 28.0 yrs £-4,443
4 kW 3337 kWh 2569 kWh 768 kWh £664 £77 £741 £17,588 23.7 yrs £-2,774
5 kW 4171 kWh 3212 kWh 959 kWh £830 £96 £926 £19,623 21.2 yrs £-1,105
6 kW 5006 kWh 3854 kWh 1151 kWh £996 £115 £1,111 £21,657 19.5 yrs £564
7 kW 5840 kWh 4497 kWh 1343 kWh £1,162 £134 £1,296 £23,692 18.3 yrs £2,233
8 kW 6674 kWh 5139 kWh 1535 kWh £1,328 £154 £1,481 £25,726 17.4 yrs £3,902

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.

Insights for G31

Figures below are tailored to G31 — click through for full league tables.

Solar Payback Index Rank #2788 of 2997
13.0 years (UK avg 11.3 years)
~£937 /yr • £12,207 upfront
Standing-Charge Drag Rank #1853 of 2997
22.0% (UK avg 21.7%) drag on savings
£206 fixed • ~£937 /yr value

Your Area at a Glance

Your Electricity Rate
25.84p/kWh
Daily Fixed Charge
56.55p/day
Local Sunshine
834kWh/kW
A 1 kW system generates ~834 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

Calton, Dennistoun, Shettleston, East Centre, Anderston/City/Yorkhill

Data Sources & Assumptions

Solar yield: PVGIS (EU Joint Research Centre), January 2025 data

Electricity rates: Ofgem price cap, Q4 2025

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.

Compare nearby areas

Nearby in Southern Scotland

G40 (Glasgow City)
≈1.3 km away
Local sunshine: ~834 kWh/kWp · -0% vs G31
G58 (Glasgow City)
≈2.1 km away
Local sunshine: ~838 kWh/kWp · +0% vs G31
G80 (Glasgow City)
≈2.3 km away
Local sunshine: ~835 kWh/kWp · +0% vs G31
G9 (Glasgow City)
≈2.3 km away
Local sunshine: ~835 kWh/kWp · +0% vs G31
G90 (Glasgow City)
≈2.3 km away
Local sunshine: ~835 kWh/kWp · +0% vs G31
G1 (Glasgow City)
≈2.4 km away
Local sunshine: ~835 kWh/kWp · +0% vs G31

Similar sunshine across the UK

OL15 (Rochdale)
~834 kWh/kWp · +0% vs G31
AB55 (Moray)
~834 kWh/kWp · -0% vs G31
KW15 (Orkney Islands)
~834 kWh/kWp · -0% vs G31