Solar panel cost in Warwick (CV31)

See realistic solar installation costs, savings and payback for CV31 (Warwick) 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

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System Size

Roof Direction

Battery Storage

Export Value

Your Numbers

Break-even
10.4 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£781
What you save every year
Profit Over 25 Years
£11,376
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

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 973 kWh per year on a south-facing roof. We value self-used electricity at 25.1p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.1p/kWh
Standing charge
53.6p/day
Sunshine yield (south)
973 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: £781, Upfront: £8,139, Break-even: 10.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1947 kWh 779 kWh 1168 kWh £195 £117 £312 £3,256 10.4 yrs £2,989
3 kW 2920 kWh 1168 kWh 1752 kWh £293 £175 £468 £4,883 10.4 yrs £4,484
4 kW 3893 kWh 1557 kWh 2336 kWh £391 £234 £624 £6,511 10.4 yrs £5,978
5 kW 4866 kWh 1947 kWh 2920 kWh £489 £292 £781 £8,139 10.4 yrs £7,473
6 kW 5840 kWh 2336 kWh 3504 kWh £586 £350 £937 £9,767 10.4 yrs £8,967
7 kW 6813 kWh 2725 kWh 4088 kWh £684 £409 £1,093 £11,394 10.4 yrs £10,462
8 kW 7786 kWh 3115 kWh 4672 kWh £782 £467 £1,249 £13,022 10.4 yrs £11,956

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: £928, Upfront: £10,239, Break-even: 11.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1947 kWh 1168 kWh 779 kWh £293 £78 £371 £5,356 14.4 yrs £2,065
3 kW 2920 kWh 1752 kWh 1168 kWh £440 £117 £557 £6,983 12.5 yrs £4,147
4 kW 3893 kWh 2336 kWh 1557 kWh £586 £156 £742 £8,611 11.6 yrs £6,230
5 kW 4866 kWh 2920 kWh 1947 kWh £733 £195 £928 £10,239 11.0 yrs £8,312
6 kW 5840 kWh 3504 kWh 2336 kWh £879 £234 £1,113 £11,867 10.7 yrs £10,395
7 kW 6813 kWh 4088 kWh 2725 kWh £1,026 £273 £1,299 £13,494 10.4 yrs £12,477
8 kW 7786 kWh 4672 kWh 3115 kWh £1,173 £311 £1,484 £15,122 10.2 yrs £14,559

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: £1,001, Upfront: £11,639, Break-even: 11.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1947 kWh 1363 kWh 584 kWh £342 £58 £400 £6,756 16.9 yrs £1,253
3 kW 2920 kWh 2044 kWh 876 kWh £513 £88 £601 £8,383 14.0 yrs £3,629
4 kW 3893 kWh 2725 kWh 1168 kWh £684 £117 £801 £10,011 12.5 yrs £6,005
5 kW 4866 kWh 3407 kWh 1460 kWh £855 £146 £1,001 £11,639 11.6 yrs £8,382
6 kW 5840 kWh 4088 kWh 1752 kWh £1,026 £175 £1,201 £13,267 11.0 yrs £10,758
7 kW 6813 kWh 4769 kWh 2044 kWh £1,197 £204 £1,401 £14,894 10.6 yrs £13,134
8 kW 7786 kWh 5450 kWh 2336 kWh £1,368 £234 £1,602 £16,522 10.3 yrs £15,511

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: £1,023, Upfront: £13,389, Break-even: 13.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1947 kWh 1421 kWh 526 kWh £357 £53 £409 £8,506 20.8 yrs £-321
3 kW 2920 kWh 2132 kWh 788 kWh £535 £79 £614 £10,133 16.5 yrs £2,144
4 kW 3893 kWh 2842 kWh 1051 kWh £713 £105 £818 £11,761 14.4 yrs £4,608
5 kW 4866 kWh 3553 kWh 1314 kWh £892 £131 £1,023 £13,389 13.1 yrs £7,073
6 kW 5840 kWh 4263 kWh 1577 kWh £1,070 £158 £1,228 £15,017 12.2 yrs £9,537
7 kW 6813 kWh 4974 kWh 1840 kWh £1,248 £184 £1,432 £16,644 11.6 yrs £12,002
8 kW 7786 kWh 5684 kWh 2102 kWh £1,427 £210 £1,637 £18,272 11.2 yrs £14,466

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: £1,038, Upfront: £15,139, Break-even: 14.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1947 kWh 1460 kWh 487 kWh £366 £49 £415 £10,256 24.7 yrs £-1,953
3 kW 2920 kWh 2190 kWh 730 kWh £550 £73 £623 £11,883 19.1 yrs £570
4 kW 3893 kWh 2920 kWh 973 kWh £733 £97 £830 £13,511 16.3 yrs £3,093
5 kW 4866 kWh 3650 kWh 1217 kWh £916 £122 £1,038 £15,139 14.6 yrs £5,617
6 kW 5840 kWh 4380 kWh 1460 kWh £1,099 £146 £1,245 £16,767 13.5 yrs £8,140
7 kW 6813 kWh 5110 kWh 1703 kWh £1,283 £170 £1,453 £18,394 12.7 yrs £10,663
8 kW 7786 kWh 5840 kWh 1947 kWh £1,466 £195 £1,660 £20,022 12.1 yrs £13,187

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: £1,052, Upfront: £17,589, Break-even: 16.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1947 kWh 1499 kWh 448 kWh £376 £45 £421 £12,706 30.2 yrs £-4,286
3 kW 2920 kWh 2248 kWh 672 kWh £564 £67 £631 £14,333 22.7 yrs £-1,704
4 kW 3893 kWh 2998 kWh 895 kWh £752 £90 £842 £15,961 19.0 yrs £878
5 kW 4866 kWh 3747 kWh 1119 kWh £941 £112 £1,052 £17,589 16.7 yrs £3,461
6 kW 5840 kWh 4497 kWh 1343 kWh £1,129 £134 £1,263 £19,217 15.2 yrs £6,043
7 kW 6813 kWh 5246 kWh 1567 kWh £1,317 £157 £1,473 £20,844 14.1 yrs £8,625
8 kW 7786 kWh 5995 kWh 1791 kWh £1,505 £179 £1,684 £22,472 13.3 yrs £11,207

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 Warwick

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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Seasonal solar output in CV31

Monthly generation per kilowatt of solar panels

kWh 37 Jan 52 Feb 84 Mar 108 Apr 118 May 117 Jun 119 Jul 107 Aug 90 Sep 65 Oct 43 Nov 33 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 50.2% of an average month (Dec–Feb)

Best / worst month: Jul / Dec

These figures show output per kilowatt (kW) of panels installed. In winter, a 1 kW system here produces about 41 kWh per month; the average month produces around 81 kWh. So a typical 4 kW home system would generate roughly 163 kWh in winter, or 324 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.10p/kWh
Daily Fixed Charge
53.60p/day
Local Sunshine
973kWh/kW
A 1 kW system generates ~973 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: 60% • Flats: 33% • Bungalows: 4% Based on 11,173 properties

Coverage

Warwick (100%)

Areas Covered

Leamington Willes, Leamington Brunswick, Whitnash, Leamington Clarendon, Radford Semele, Warwick Myton & Heathcote, Harbury

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.