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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in CV9 (North Warwickshire)

See if solar pays off for you in North Warwickshire — 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
13.0 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£780
What you save every year
Profit Over 25 Years
£9,334
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 962 kWh/kW — 6 below the regional median (968).

Read the full story

A typical roof here lands around 5.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 962 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)
962 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 1924 kWh 770 kWh 1155 kWh £197 £115 £312 £4,069 13.0 yrs £2,173
3 kW 2886 kWh 1155 kWh 1732 kWh £295 £173 £468 £6,104 13.0 yrs £3,260
4 kW 3848 kWh 1539 kWh 2309 kWh £393 £231 £624 £8,138 13.0 yrs £4,346
5 kW 4810 kWh 1924 kWh 2886 kWh £492 £289 £780 £10,173 13.0 yrs £5,433
6 kW 5773 kWh 2309 kWh 3464 kWh £590 £346 £936 £12,207 13.0 yrs £6,519
7 kW 6735 kWh 2694 kWh 4041 kWh £688 £404 £1,092 £14,242 13.0 yrs £7,606
8 kW 7697 kWh 3079 kWh 4618 kWh £787 £462 £1,248 £16,276 13.0 yrs £8,692

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: £930, 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 1924 kWh 1155 kWh 770 kWh £295 £77 £372 £6,169 16.6 yrs £1,270
3 kW 2886 kWh 1732 kWh 1155 kWh £442 £115 £558 £8,204 14.7 yrs £2,955
4 kW 3848 kWh 2309 kWh 1539 kWh £590 £154 £744 £10,238 13.8 yrs £4,640
5 kW 4810 kWh 2886 kWh 1924 kWh £737 £192 £930 £12,273 13.2 yrs £6,325
6 kW 5773 kWh 3464 kWh 2309 kWh £885 £231 £1,116 £14,307 12.8 yrs £8,010
7 kW 6735 kWh 4041 kWh 2694 kWh £1,032 £269 £1,302 £16,342 12.6 yrs £9,695
8 kW 7697 kWh 4618 kWh 3079 kWh £1,180 £308 £1,488 £18,376 12.4 yrs £11,380

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: £1,005, 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 1924 kWh 1347 kWh 577 kWh £344 £58 £402 £7,569 18.8 yrs £468
3 kW 2886 kWh 2020 kWh 866 kWh £516 £87 £603 £9,604 15.9 yrs £2,453
4 kW 3848 kWh 2694 kWh 1155 kWh £688 £115 £804 £11,638 14.5 yrs £4,437
5 kW 4810 kWh 3367 kWh 1443 kWh £860 £144 £1,005 £13,673 13.6 yrs £6,421
6 kW 5773 kWh 4041 kWh 1732 kWh £1,032 £173 £1,206 £15,707 13.0 yrs £8,405
7 kW 6735 kWh 4714 kWh 2020 kWh £1,205 £202 £1,407 £17,742 12.6 yrs £10,389
8 kW 7697 kWh 5388 kWh 2309 kWh £1,377 £231 £1,607 £19,776 12.3 yrs £12,373

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: £1,027, 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 1924 kWh 1405 kWh 520 kWh £359 £52 £411 £9,319 22.7 yrs £-1,102
3 kW 2886 kWh 2107 kWh 779 kWh £538 £78 £616 £11,354 18.4 yrs £972
4 kW 3848 kWh 2809 kWh 1039 kWh £718 £104 £822 £13,388 16.3 yrs £3,046
5 kW 4810 kWh 3512 kWh 1299 kWh £897 £130 £1,027 £15,423 15.0 yrs £5,120
6 kW 5773 kWh 4214 kWh 1559 kWh £1,077 £156 £1,233 £17,457 14.2 yrs £7,194
7 kW 6735 kWh 4916 kWh 1818 kWh £1,256 £182 £1,438 £19,492 13.6 yrs £9,268
8 kW 7697 kWh 5619 kWh 2078 kWh £1,436 £208 £1,643 £21,526 13.1 yrs £11,342

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: £1,042, 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 1924 kWh 1443 kWh 481 kWh £369 £48 £417 £11,069 26.6 yrs £-2,732
3 kW 2886 kWh 2165 kWh 722 kWh £553 £72 £625 £13,104 21.0 yrs £-599
4 kW 3848 kWh 2886 kWh 962 kWh £737 £96 £834 £15,138 18.2 yrs £1,535
5 kW 4810 kWh 3608 kWh 1203 kWh £922 £120 £1,042 £17,173 16.5 yrs £3,669
6 kW 5773 kWh 4329 kWh 1443 kWh £1,106 £144 £1,250 £19,207 15.4 yrs £5,803
7 kW 6735 kWh 5051 kWh 1684 kWh £1,291 £168 £1,459 £21,242 14.6 yrs £7,937
8 kW 7697 kWh 5773 kWh 1924 kWh £1,475 £192 £1,667 £23,276 14.0 yrs £10,070

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: £1,057, 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 1924 kWh 1482 kWh 443 kWh £379 £44 £423 £13,519 32.0 yrs £-5,063
3 kW 2886 kWh 2222 kWh 664 kWh £568 £66 £634 £15,554 24.5 yrs £-2,869
4 kW 3848 kWh 2963 kWh 885 kWh £757 £89 £846 £17,588 20.8 yrs £-675
5 kW 4810 kWh 3704 kWh 1106 kWh £946 £111 £1,057 £19,623 18.6 yrs £1,518
6 kW 5773 kWh 4445 kWh 1328 kWh £1,136 £133 £1,268 £21,657 17.1 yrs £3,712
7 kW 6735 kWh 5186 kWh 1549 kWh £1,325 £155 £1,480 £23,692 16.0 yrs £5,905
8 kW 7697 kWh 5927 kWh 1770 kWh £1,514 £177 £1,691 £25,726 15.2 yrs £8,099

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 CV9

Figures below are tailored to CV9 — click through for full league tables.

Big-Roof Britain Rank #1321 of 2182
4.8 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #1665 of 2997
11.4 years (UK avg 11.3 years)
~£892 /yr • £10,173 upfront
Standing-Charge Drag Rank #1423 of 2997
20.1% (UK avg 21.7%) drag on savings
£179 fixed • ~£892 /yr value

Your Area at a Glance

Your Electricity Rate
25.55p/kWh
Daily Fixed Charge
49.09p/day
Local Sunshine
962kWh/kW
A 1 kW system generates ~962 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
5.0kW
For houses & bungalows in this area

Local Property Data

Property Types

Houses: 71% • Flats: 17% • Bungalows: 11% Based on 6,973 properties

Coverage

North Warwickshire (88%)|Hinckley and Bosworth (12%)

Areas Covered

Atherstone Central, Baddesley and Grendon, Atherstone North, Twycross and Witherley with Sheepy, Atherstone South and Mancetter, Hurley and Wood End, Newton Regis and Warton, Arley and Whitacre + 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

CV10 (Nuneaton and Bedworth)
≈6.7 km away
Local sunshine: ~960 kWh/kWp · -0% vs CV9
CV11 (Nuneaton and Bedworth)
≈8.2 km away
Local sunshine: ~959 kWh/kWp · -0% vs CV9
B77 (Tamworth)
≈10.1 km away
Local sunshine: ~956 kWh/kWp · -1% vs CV9
B78 (North Warwickshire)
≈10.2 km away
Local sunshine: ~961 kWh/kWp · -0% vs CV9
CV13 (Hinckley and Bosworth)
≈10.4 km away
Local sunshine: ~962 kWh/kWp · -0% vs CV9
CV12 (Nuneaton and Bedworth)
≈12.0 km away
Local sunshine: ~961 kWh/kWp · -0% vs CV9

Similar sunshine across the UK

B93 (Solihull)
~962 kWh/kWp · +0% vs CV9
EX21 (Torridge)
~962 kWh/kWp · +0% vs CV9
PL16 (West Devon)
~962 kWh/kWp · -0% vs CV9