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Solar panel cost in East Renfrewshire (G77)

See realistic solar installation costs, savings and payback for G77 (East 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
12.2 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£802
What you save every year
Profit Over 25 Years
£10,280
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 818 kWh/kW — 32 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 818 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)
818 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: £668, Upfront: £8,139, Break-even: 12.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1636 kWh 654 kWh 981 kWh £169 £98 £267 £3,256 12.2 yrs £2,090
3 kW 2454 kWh 981 kWh 1472 kWh £254 £147 £401 £4,883 12.2 yrs £3,136
4 kW 3272 kWh 1309 kWh 1963 kWh £338 £196 £535 £6,511 12.2 yrs £4,181
5 kW 4090 kWh 1636 kWh 2454 kWh £423 £245 £668 £8,139 12.2 yrs £5,226
6 kW 4907 kWh 1963 kWh 2944 kWh £507 £294 £802 £9,767 12.2 yrs £6,271
7 kW 5725 kWh 2290 kWh 3435 kWh £592 £344 £936 £11,394 12.2 yrs £7,316
8 kW 6543 kWh 2617 kWh 3926 kWh £677 £393 £1,069 £13,022 12.2 yrs £8,361

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: £798, Upfront: £10,239, Break-even: 12.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1636 kWh 981 kWh 654 kWh £254 £65 £319 £5,356 16.8 yrs £1,027
3 kW 2454 kWh 1472 kWh 981 kWh £381 £98 £479 £6,983 14.6 yrs £2,591
4 kW 3272 kWh 1963 kWh 1309 kWh £507 £131 £638 £8,611 13.5 yrs £4,155
5 kW 4090 kWh 2454 kWh 1636 kWh £634 £164 £798 £10,239 12.8 yrs £5,719
6 kW 4907 kWh 2944 kWh 1963 kWh £761 £196 £957 £11,867 12.4 yrs £7,282
7 kW 5725 kWh 3435 kWh 2290 kWh £888 £229 £1,117 £13,494 12.1 yrs £8,846
8 kW 6543 kWh 3926 kWh 2617 kWh £1,015 £262 £1,277 £15,122 11.8 yrs £10,410

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: £863, Upfront: £11,639, Break-even: 13.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1636 kWh 1145 kWh 491 kWh £296 £49 £345 £6,756 19.6 yrs £146
3 kW 2454 kWh 1718 kWh 736 kWh £444 £74 £518 £8,383 16.2 yrs £1,969
4 kW 3272 kWh 2290 kWh 981 kWh £592 £98 £690 £10,011 14.5 yrs £3,792
5 kW 4090 kWh 2863 kWh 1227 kWh £740 £123 £863 £11,639 13.5 yrs £5,615
6 kW 4907 kWh 3435 kWh 1472 kWh £888 £147 £1,035 £13,267 12.8 yrs £7,438
7 kW 5725 kWh 4008 kWh 1718 kWh £1,036 £172 £1,208 £14,894 12.3 yrs £9,261
8 kW 6543 kWh 4580 kWh 1963 kWh £1,184 £196 £1,380 £16,522 12.0 yrs £11,084

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: £882, Upfront: £13,389, Break-even: 15.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1636 kWh 1194 kWh 442 kWh £309 £44 £353 £8,506 24.1 yrs £-1,448
3 kW 2454 kWh 1791 kWh 663 kWh £463 £66 £529 £10,133 19.1 yrs £452
4 kW 3272 kWh 2388 kWh 883 kWh £617 £88 £706 £11,761 16.7 yrs £2,353
5 kW 4090 kWh 2985 kWh 1104 kWh £772 £110 £882 £13,389 15.2 yrs £4,254
6 kW 4907 kWh 3582 kWh 1325 kWh £926 £133 £1,059 £15,017 14.2 yrs £6,155
7 kW 5725 kWh 4180 kWh 1546 kWh £1,080 £155 £1,235 £16,644 13.5 yrs £8,055
8 kW 6543 kWh 4777 kWh 1767 kWh £1,235 £177 £1,411 £18,272 12.9 yrs £9,956

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: £895, Upfront: £15,139, Break-even: 16.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1636 kWh 1227 kWh 409 kWh £317 £41 £358 £10,256 28.6 yrs £-3,095
3 kW 2454 kWh 1840 kWh 613 kWh £476 £61 £537 £11,883 22.1 yrs £-1,142
4 kW 3272 kWh 2454 kWh 818 kWh £634 £82 £716 £13,511 18.9 yrs £811
5 kW 4090 kWh 3067 kWh 1022 kWh £793 £102 £895 £15,139 16.9 yrs £2,763
6 kW 4907 kWh 3681 kWh 1227 kWh £951 £123 £1,074 £16,767 15.6 yrs £4,716
7 kW 5725 kWh 4294 kWh 1431 kWh £1,110 £143 £1,253 £18,394 14.7 yrs £6,668
8 kW 6543 kWh 4907 kWh 1636 kWh £1,269 £164 £1,432 £20,022 14.0 yrs £8,621

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: £908, Upfront: £17,589, Break-even: 19.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1636 kWh 1260 kWh 376 kWh £326 £38 £363 £12,706 35.0 yrs £-5,441
3 kW 2454 kWh 1889 kWh 564 kWh £488 £56 £545 £14,333 26.3 yrs £-3,437
4 kW 3272 kWh 2519 kWh 752 kWh £651 £75 £726 £15,961 22.0 yrs £-1,432
5 kW 4090 kWh 3149 kWh 941 kWh £814 £94 £908 £17,589 19.4 yrs £572
6 kW 4907 kWh 3779 kWh 1129 kWh £977 £113 £1,090 £19,217 17.6 yrs £2,577
7 kW 5725 kWh 4409 kWh 1317 kWh £1,140 £132 £1,271 £20,844 16.4 yrs £4,581
8 kW 6543 kWh 5038 kWh 1505 kWh £1,302 £150 £1,453 £22,472 15.5 yrs £6,586

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 East 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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Insights for G77

Figures below are tailored to G77 — click through for full league tables.

Solar Payback Index Rank #2604 of 2996
12.2 years (UK avg 10.8 years)
~£802 /yr • £9,767 upfront
Standing-Charge Drag Rank #2085 of 2996
29.2% (UK avg 26.6%) drag on savings
£234 fixed • ~£802 /yr value
Aspect Penalty View ranking →
East −18.3% West −19.9%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in G77

Monthly generation per kilowatt of solar panels

kWh 22 Jan 38 Feb 68 Mar 101 Apr 112 May 106 Jun 107 Jul 94 Aug 72 Sep 49 Oct 32 Nov 18 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 37.9% 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 68 kWh. So a typical 4 kW home system would generate roughly 103 kWh in winter, or 273 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.85p/kWh
Daily Fixed Charge
64.17p/day
Local Sunshine
818kWh/kW
A 1 kW system generates ~818 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

East Renfrewshire (100%)

Areas Covered

Newton Mearns South and Eaglesham, Newton Mearns North and Neilston, Annick

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

G76 (East Renfrewshire)
≈3.8 km away
Local sunshine: ~799 kWh/kWp · -2% vs G77
G46 (East Renfrewshire)
≈4.1 km away
Local sunshine: ~833 kWh/kWp · +2% vs G77
G78 (East Renfrewshire)
≈4.8 km away
Local sunshine: ~839 kWh/kWp · +3% vs G77
G53 (Glasgow City)
≈5.5 km away
Local sunshine: ~837 kWh/kWp · +2% vs G77
G43 (Glasgow City)
≈5.6 km away
Local sunshine: ~836 kWh/kWp · +2% vs G77
G44 (Glasgow City)
≈6.3 km away
Local sunshine: ~832 kWh/kWp · +2% vs G77

Similar sunshine across the UK

PA82 (Na h-Eileanan Siar)
~818 kWh/kWp · -0% vs G77
HS6 (Na h-Eileanan Siar)
~818 kWh/kWp · -0% vs G77
IV7 (Highland)
~817 kWh/kWp · -0% vs G77