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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in CV12 (Nuneaton and Bedworth)

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

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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
13.0 years
After this, it's pure profit
Upfront Cost
£8,138
What you pay to get started
Annual Benefit
£624
What you save every year
Profit Over 25 Years
£7,456
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 East Midlands, the current unit rate is 25.55p/kWh with a 49.09p/day standing charge. Your postcode’s south-facing sunshine yield is 961 kWh/kW — 7 below the regional median (968).

Read the full story

A typical roof here lands around 4.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 961 kWh per year on a south-facing roof. We value self-used electricity at 25.6p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.6p/kWh
Standing charge
49.1p/day
Sunshine yield (south)
961 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: £780, Upfront: £10,173, Break-even: 13.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1923 kWh 769 kWh 1154 kWh £197 £115 £312 £4,069 13.0 yrs £2,168
3 kW 2884 kWh 1154 kWh 1730 kWh £295 £173 £468 £6,104 13.0 yrs £3,253
4 kW 3846 kWh 1538 kWh 2307 kWh £393 £231 £624 £8,138 13.0 yrs £4,337
5 kW 4807 kWh 1923 kWh 2884 kWh £491 £288 £780 £10,173 13.0 yrs £5,421
6 kW 5768 kWh 2307 kWh 3461 kWh £590 £346 £936 £12,207 13.0 yrs £6,505
7 kW 6730 kWh 2692 kWh 4038 kWh £688 £404 £1,092 £14,242 13.0 yrs £7,589
8 kW 7691 kWh 3076 kWh 4615 kWh £786 £461 £1,247 £16,276 13.0 yrs £8,674

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: £929, Upfront: £12,273, Break-even: 13.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1923 kWh 1154 kWh 769 kWh £295 £77 £372 £6,169 16.6 yrs £1,264
3 kW 2884 kWh 1730 kWh 1154 kWh £442 £115 £558 £8,204 14.7 yrs £2,947
4 kW 3846 kWh 2307 kWh 1538 kWh £590 £154 £743 £10,238 13.8 yrs £4,629
5 kW 4807 kWh 2884 kWh 1923 kWh £737 £192 £929 £12,273 13.2 yrs £6,311
6 kW 5768 kWh 3461 kWh 2307 kWh £884 £231 £1,115 £14,307 12.8 yrs £7,993
7 kW 6730 kWh 4038 kWh 2692 kWh £1,032 £269 £1,301 £16,342 12.6 yrs £9,675
8 kW 7691 kWh 4615 kWh 3076 kWh £1,179 £308 £1,487 £18,376 12.4 yrs £11,357

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: £1,004, Upfront: £13,673, Break-even: 13.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1923 kWh 1346 kWh 577 kWh £344 £58 £402 £7,569 18.8 yrs £462
3 kW 2884 kWh 2019 kWh 865 kWh £516 £87 £602 £9,604 15.9 yrs £2,444
4 kW 3846 kWh 2692 kWh 1154 kWh £688 £115 £803 £11,638 14.5 yrs £4,425
5 kW 4807 kWh 3365 kWh 1442 kWh £860 £144 £1,004 £13,673 13.6 yrs £6,406
6 kW 5768 kWh 4038 kWh 1730 kWh £1,032 £173 £1,205 £15,707 13.0 yrs £8,387
7 kW 6730 kWh 4711 kWh 2019 kWh £1,204 £202 £1,405 £17,742 12.6 yrs £10,368
8 kW 7691 kWh 5384 kWh 2307 kWh £1,376 £231 £1,606 £19,776 12.3 yrs £12,349

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: £1,026, Upfront: £15,423, Break-even: 15.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1923 kWh 1404 kWh 519 kWh £359 £52 £411 £9,319 22.7 yrs £-1,108
3 kW 2884 kWh 2105 kWh 779 kWh £538 £78 £616 £11,354 18.4 yrs £963
4 kW 3846 kWh 2807 kWh 1038 kWh £717 £104 £821 £13,388 16.3 yrs £3,033
5 kW 4807 kWh 3509 kWh 1298 kWh £897 £130 £1,026 £15,423 15.0 yrs £5,104
6 kW 5768 kWh 4211 kWh 1557 kWh £1,076 £156 £1,232 £17,457 14.2 yrs £7,175
7 kW 6730 kWh 4913 kWh 1817 kWh £1,255 £182 £1,437 £19,492 13.6 yrs £9,246
8 kW 7691 kWh 5614 kWh 2077 kWh £1,434 £208 £1,642 £21,526 13.1 yrs £11,317

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: £1,041, Upfront: £17,173, Break-even: 16.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1923 kWh 1442 kWh 481 kWh £368 £48 £417 £11,069 26.6 yrs £-2,739
3 kW 2884 kWh 2163 kWh 721 kWh £553 £72 £625 £13,104 21.0 yrs £-608
4 kW 3846 kWh 2884 kWh 961 kWh £737 £96 £833 £15,138 18.2 yrs £1,523
5 kW 4807 kWh 3605 kWh 1202 kWh £921 £120 £1,041 £17,173 16.5 yrs £3,653
6 kW 5768 kWh 4326 kWh 1442 kWh £1,105 £144 £1,250 £19,207 15.4 yrs £5,784
7 kW 6730 kWh 5047 kWh 1682 kWh £1,290 £168 £1,458 £21,242 14.6 yrs £7,915
8 kW 7691 kWh 5768 kWh 1923 kWh £1,474 £192 £1,666 £23,276 14.0 yrs £10,045

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: £1,056, Upfront: £19,623, Break-even: 18.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1923 kWh 1481 kWh 442 kWh £378 £44 £422 £13,519 32.0 yrs £-5,069
3 kW 2884 kWh 2221 kWh 663 kWh £567 £66 £634 £15,554 24.5 yrs £-2,879
4 kW 3846 kWh 2961 kWh 884 kWh £757 £88 £845 £17,588 20.8 yrs £-688
5 kW 4807 kWh 3701 kWh 1106 kWh £946 £111 £1,056 £19,623 18.6 yrs £1,502
6 kW 5768 kWh 4442 kWh 1327 kWh £1,135 £133 £1,267 £21,657 17.1 yrs £3,693
7 kW 6730 kWh 5182 kWh 1548 kWh £1,324 £155 £1,479 £23,692 16.0 yrs £5,883
8 kW 7691 kWh 5922 kWh 1769 kWh £1,513 £177 £1,690 £25,726 15.2 yrs £8,074

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 CV12

Figures below are tailored to CV12 — click through for full league tables.

Big-Roof Britain Rank #1411 of 2182
4.7 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #1662 of 2997
11.4 years (UK avg 11.3 years)
~£713 /yr • £8,138 upfront
Standing-Charge Drag Rank #2233 of 2997
25.1% (UK avg 21.7%) drag on savings
£179 fixed • ~£713 /yr value

Your Area at a Glance

Your Electricity Rate
25.55p/kWh
Daily Fixed Charge
49.09p/day
Local Sunshine
961kWh/kW
A 1 kW system generates ~961 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
4.0kW
For houses & bungalows in this area

Local Property Data

Property Types

Houses: 73% • Flats: 14% • Bungalows: 11% Based on 8,136 properties

Coverage

Nuneaton and Bedworth (97%)|Coventry (3%)

Areas Covered

Bede, Heath, Slough, Bulkington, Poplar, St Michael's, Fillongley, Wolvey and Shilton + 2 more

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 East Midlands

CV11 (Nuneaton and Bedworth)
≈4.9 km away
Local sunshine: ~959 kWh/kWp · -0% vs CV12
CV10 (Nuneaton and Bedworth)
≈5.3 km away
Local sunshine: ~960 kWh/kWp · -0% vs CV12
CV6 (Coventry)
≈5.8 km away
Local sunshine: ~956 kWh/kWp · -1% vs CV12
CV7 (Solihull)
≈5.8 km away
Local sunshine: ~968 kWh/kWp · +1% vs CV12
CV2 (Coventry)
≈6.5 km away
Local sunshine: ~968 kWh/kWp · +1% vs CV12
CV1 (Coventry)
≈8.1 km away
Local sunshine: ~958 kWh/kWp · -0% vs CV12

Similar sunshine across the UK

HU1 (Kingston upon Hull, City of)
~961 kWh/kWp · -0% vs CV12
HU9 (Kingston upon Hull, City of)
~961 kWh/kWp · -0% vs CV12
YO11 (North Yorkshire)
~962 kWh/kWp · +0% vs CV12