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Solar panel cost in Cheltenham (GL53)

See realistic solar installation costs, savings and payback for GL53 (Cheltenham) 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
14.2 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£861
What you save every year
Profit Over 25 Years
£9,324
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 Midlands, the current unit rate is 22.44p/kWh with a 59.34p/day standing charge. Your postcode’s south-facing sunshine yield is 958 kWh/kW — 16 above the regional median (942).

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 958 kWh per year on a south-facing roof. We value self-used electricity at 22.4p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
22.4p/kWh
Standing charge
59.3p/day
Sunshine yield (south)
958 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: £718, Upfront: £10,173, Break-even: 14.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1917 kWh 767 kWh 1150 kWh £172 £115 £287 £4,069 14.2 yrs £1,673
3 kW 2875 kWh 1150 kWh 1725 kWh £258 £173 £431 £6,104 14.2 yrs £2,509
4 kW 3834 kWh 1534 kWh 2300 kWh £344 £230 £574 £8,138 14.2 yrs £3,345
5 kW 4792 kWh 1917 kWh 2875 kWh £430 £288 £718 £10,173 14.2 yrs £4,181
6 kW 5751 kWh 2300 kWh 3450 kWh £516 £345 £861 £12,207 14.2 yrs £5,018
7 kW 6709 kWh 2684 kWh 4026 kWh £602 £403 £1,005 £14,242 14.2 yrs £5,854
8 kW 7668 kWh 3067 kWh 4601 kWh £688 £460 £1,148 £16,276 14.2 yrs £6,690

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: £837, Upfront: £12,273, 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 1917 kWh 1150 kWh 767 kWh £258 £77 £335 £6,169 18.4 yrs £526
3 kW 2875 kWh 1725 kWh 1150 kWh £387 £115 £502 £8,204 16.3 yrs £1,840
4 kW 3834 kWh 2300 kWh 1534 kWh £516 £153 £670 £10,238 15.3 yrs £3,153
5 kW 4792 kWh 2875 kWh 1917 kWh £645 £192 £837 £12,273 14.7 yrs £4,466
6 kW 5751 kWh 3450 kWh 2300 kWh £774 £230 £1,004 £14,307 14.2 yrs £5,779
7 kW 6709 kWh 4026 kWh 2684 kWh £903 £268 £1,172 £16,342 13.9 yrs £7,092
8 kW 7668 kWh 4601 kWh 3067 kWh £1,032 £307 £1,339 £18,376 13.7 yrs £8,406

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: £897, Upfront: £13,673, Break-even: 15.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1917 kWh 1342 kWh 575 kWh £301 £58 £359 £7,569 21.1 yrs £-397
3 kW 2875 kWh 2013 kWh 863 kWh £452 £86 £538 £9,604 17.9 yrs £1,155
4 kW 3834 kWh 2684 kWh 1150 kWh £602 £115 £717 £11,638 16.2 yrs £2,707
5 kW 4792 kWh 3355 kWh 1438 kWh £753 £144 £897 £13,673 15.3 yrs £4,258
6 kW 5751 kWh 4026 kWh 1725 kWh £903 £173 £1,076 £15,707 14.6 yrs £5,810
7 kW 6709 kWh 4696 kWh 2013 kWh £1,054 £201 £1,255 £17,742 14.1 yrs £7,362
8 kW 7668 kWh 5367 kWh 2300 kWh £1,204 £230 £1,434 £19,776 13.8 yrs £8,913

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: £914, Upfront: £15,423, 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 1917 kWh 1399 kWh 518 kWh £314 £52 £366 £9,319 25.5 yrs £-2,004
3 kW 2875 kWh 2099 kWh 776 kWh £471 £78 £549 £11,354 20.7 yrs £-380
4 kW 3834 kWh 2799 kWh 1035 kWh £628 £104 £732 £13,388 18.3 yrs £1,243
5 kW 4792 kWh 3498 kWh 1294 kWh £785 £129 £914 £15,423 16.9 yrs £2,866
6 kW 5751 kWh 4198 kWh 1553 kWh £942 £155 £1,097 £17,457 15.9 yrs £4,489
7 kW 6709 kWh 4898 kWh 1811 kWh £1,099 £181 £1,280 £19,492 15.2 yrs £6,112
8 kW 7668 kWh 5597 kWh 2070 kWh £1,256 £207 £1,463 £21,526 14.7 yrs £7,736

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: £926, Upfront: £17,173, Break-even: 18.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1917 kWh 1438 kWh 479 kWh £323 £48 £371 £11,069 29.9 yrs £-3,658
3 kW 2875 kWh 2157 kWh 719 kWh £484 £72 £556 £13,104 23.6 yrs £-1,987
4 kW 3834 kWh 2875 kWh 958 kWh £645 £96 £741 £15,138 20.4 yrs £-316
5 kW 4792 kWh 3594 kWh 1198 kWh £807 £120 £926 £17,173 18.5 yrs £1,354
6 kW 5751 kWh 4313 kWh 1438 kWh £968 £144 £1,112 £19,207 17.3 yrs £3,025
7 kW 6709 kWh 5032 kWh 1677 kWh £1,129 £168 £1,297 £21,242 16.4 yrs £4,696
8 kW 7668 kWh 5751 kWh 1917 kWh £1,290 £192 £1,482 £23,276 15.7 yrs £6,367

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: £938, Upfront: £19,623, Break-even: 20.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1917 kWh 1476 kWh 441 kWh £331 £44 £375 £13,519 36.0 yrs £-6,013
3 kW 2875 kWh 2214 kWh 661 kWh £497 £66 £563 £15,554 27.6 yrs £-4,294
4 kW 3834 kWh 2952 kWh 882 kWh £662 £88 £751 £17,588 23.4 yrs £-2,576
5 kW 4792 kWh 3690 kWh 1102 kWh £828 £110 £938 £19,623 20.9 yrs £-857
6 kW 5751 kWh 4428 kWh 1323 kWh £994 £132 £1,126 £21,657 19.2 yrs £862
7 kW 6709 kWh 5166 kWh 1543 kWh £1,159 £154 £1,314 £23,692 18.0 yrs £2,580
8 kW 7668 kWh 5904 kWh 1764 kWh £1,325 £176 £1,501 £25,726 17.1 yrs £4,299

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 GL53

Figures below are tailored to GL53 — click through for full league tables.

Big-Roof Britain Rank #425 of 2182
5.7 kWp (UK avg 5.1 kWp)
~12 panels (≈430 W)
Solar Payback Index Rank #1632 of 2997
12.6 years (UK avg 12.6 years)
~£966 /yr • £12,207 upfront
Standing-Charge Drag Rank #977 of 2997
20.4% (UK avg 24.6%) drag on savings
£197 fixed • ~£966 /yr value
Aspect Penalty View ranking →
East −20.0% West −19.6%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in GL53

Monthly generation per kilowatt of solar panels

kWh 35 Jan 50 Feb 83 Mar 109 Apr 118 May 117 Jun 118 Jul 105 Aug 89 Sep 62 Oct 42 Nov 30 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 47.9% 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 38 kWh per month; the average month produces around 80 kWh. So a typical 4 kW home system would generate roughly 153 kWh in winter, or 319 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
22.44p/kWh
Daily Fixed Charge
59.34p/day
Local Sunshine
958kWh/kW
A 1 kW system generates ~958 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

Houses: 70% • Flats: 20% • Bungalows: 8% Based on 5,564 properties

Coverage

Cheltenham (93%)|Cotswold (5%)|Tewkesbury (2%)

Areas Covered

Leckhampton, Charlton Park, College, Charlton Kings, St Paul's, Ermin, Park, Shurdington + 4 more

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.

Compare nearby areas

Nearby in Midlands

GL50 (Cheltenham)
≈2.3 km away
Local sunshine: ~960 kWh/kWp · +0% vs GL53
GL51 (Cheltenham)
≈3.1 km away
Local sunshine: ~964 kWh/kWp · +1% vs GL53
GL52 (Cheltenham)
≈3.4 km away
Local sunshine: ~960 kWh/kWp · +0% vs GL53
GL3 (Tewkesbury)
≈8.0 km away
Local sunshine: ~969 kWh/kWp · +1% vs GL53
GL4 (Gloucester)
≈10.8 km away
Local sunshine: ~950 kWh/kWp · -1% vs GL53
GL1 (Gloucester)
≈12.1 km away
Local sunshine: ~969 kWh/kWp · +1% vs GL53

Similar sunshine across the UK

DN12 (Doncaster)
~958 kWh/kWp · -0% vs GL53
PL33 (Cornwall)
~959 kWh/kWp · +0% vs GL53
DN15 (North Lincolnshire)
~959 kWh/kWp · +0% vs GL53