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Postcode solar briefing

Solar panel cost in Rugby (CV21)

See realistic solar installation costs, savings and payback for CV21 (Rugby) using official UK data. Start with the local verdict, then adjust the calculator for your roof, usage and export assumptions.

Local model Calculator unchanged Quote assumptions checked
Local solar briefing

Solar in CV21: roof size may be the main upside, so compare proposed system sizes carefully.

This is a modelled local view, not a promise of savings. Use it as a quick sense-check before comparing installer quotes for CV21.

Typical system
5.0 kW
starting point
Annual benefit
£780
before battery costs
Payback estimate
10.4 years
panel-only baseline
Postcode verdict
Roof-size upside
local model
Local context

Why CV21 differs

South-facing yield is close to the East Midlands median, so roof size, usage and tariff assumptions do most of the work.

The starting system size is close to the regional typical size at 5.0 kW.

Local housing mix looks suitable for a postcode-level estimate, but your actual roof still matters more than the area average.

Battery payback depends heavily on evening use, export tariff and whether the installer has assumed optimistic self-consumption.

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
10.4 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£780
What you save every year
Profit Over 25 Years
£11,366
After paying itself off, you're this much ahead

Ready to Get Started?

Get your free quote from Blue Ape Renewables. They'll connect you with MCS-certified installers in your area and handle all the paperwork.

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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.

Before you sign

What to challenge in solar quotes for CV21

Use the calculator above as a baseline, then ask installers to explain where their quote differs from the local assumptions.

If the proposed system is much larger than 5.0 kW, ask why it fits your roof and usage.

Compare payback with and without a battery before accepting a bundled quote.

Check which Smart Export Guarantee tariff is assumed. The calculator baseline uses 10p/kWh.

Confirm who handles MCS certification and DNO/G98/G99 paperwork before comparing finance or warranties.

Compare quotes Check MCS DNO, G98 and G99
New quote check

Want a quote sanity check for CV21?

Share the first part of your postcode and a few basics. We’ll help you check whether system size, battery, export and paperwork assumptions look sensible before you commit to installer conversations.

This is a practical sanity-check request, not an instant quote promise. The Blue Ape quote route above remains available if you already want installer introductions.

Request a quote sanity check →

Insights for CV21

Figures below are tailored to CV21 — click through for full league tables.

Big-Roof Britain Rank #1841 of 2182
4.4 kWp (UK avg 5.1 kWp)
~9 panels (≈430 W)
Solar Payback Index Rank #1442 of 2996
10.4 years (UK avg 10.8 years)
~£780 /yr • £8,139 upfront
Standing-Charge Drag Rank #1424 of 2996
25.1% (UK avg 26.6%) drag on savings
£196 fixed • ~£780 /yr value
Aspect Penalty View ranking →
East −21.4% West −19.7%
Typical output loss versus a south-facing roof (lower is better)
Compare areas

Compare CV21 with nearby and similar areas

Nearby postcode areas in East Midlands

CV22 (Rugby)
≈2.8 km away
Local sunshine: ~973 kWh/kWp · -0% vs CV21
CV23 (Rugby)
≈3.8 km away
Local sunshine: ~974 kWh/kWp · +0% vs CV21
LE17 (Harborough)
≈10.7 km away
Local sunshine: ~967 kWh/kWp · -1% vs CV21
NN11 (West Northamptonshire)
≈14.4 km away
Local sunshine: ~990 kWh/kWp · +2% vs CV21
CV2 (Coventry)
≈15.4 km away
Local sunshine: ~968 kWh/kWp · -0% vs CV21
CV3 (Coventry)
≈15.6 km away
Local sunshine: ~961 kWh/kWp · -1% vs CV21

Similar solar-yield areas

IP27 (West Suffolk)
~973 kWh/kWp · +0% vs CV21
WR99 (Worcester)
~972 kWh/kWp · -0% vs CV21
HU18 (East Riding of Yorkshire)
~973 kWh/kWp · +0% vs CV21

Your area in context

In East Midlands, the current unit rate is 25.10p/kWh with a 53.60p/day standing charge. Your postcode’s south-facing sunshine yield is 973 kWh/kW — 5 above 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 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: £780, 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 1946 kWh 778 kWh 1167 kWh £195 £117 £312 £3,256 10.4 yrs £2,986
3 kW 2918 kWh 1167 kWh 1751 kWh £293 £175 £468 £4,883 10.4 yrs £4,479
4 kW 3891 kWh 1556 kWh 2335 kWh £391 £233 £624 £6,511 10.4 yrs £5,972
5 kW 4864 kWh 1946 kWh 2918 kWh £488 £292 £780 £8,139 10.4 yrs £7,465
6 kW 5837 kWh 2335 kWh 3502 kWh £586 £350 £936 £9,767 10.4 yrs £8,958
7 kW 6810 kWh 2724 kWh 4086 kWh £684 £409 £1,092 £11,394 10.4 yrs £10,451
8 kW 7782 kWh 3113 kWh 4669 kWh £781 £467 £1,248 £13,022 10.4 yrs £11,944

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: £927, 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 1946 kWh 1167 kWh 778 kWh £293 £78 £371 £5,356 14.4 yrs £2,061
3 kW 2918 kWh 1751 kWh 1167 kWh £440 £117 £556 £6,983 12.6 yrs £4,142
4 kW 3891 kWh 2335 kWh 1556 kWh £586 £156 £742 £8,611 11.6 yrs £6,222
5 kW 4864 kWh 2918 kWh 1946 kWh £733 £195 £927 £10,239 11.0 yrs £8,303
6 kW 5837 kWh 3502 kWh 2335 kWh £879 £233 £1,112 £11,867 10.7 yrs £10,383
7 kW 6810 kWh 4086 kWh 2724 kWh £1,026 £272 £1,298 £13,494 10.4 yrs £12,464
8 kW 7782 kWh 4669 kWh 3113 kWh £1,172 £311 £1,483 £15,122 10.2 yrs £14,544

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 1946 kWh 1362 kWh 584 kWh £342 £58 £400 £6,756 16.9 yrs £1,249
3 kW 2918 kWh 2043 kWh 876 kWh £513 £88 £600 £8,383 14.0 yrs £3,623
4 kW 3891 kWh 2724 kWh 1167 kWh £684 £117 £800 £10,011 12.5 yrs £5,997
5 kW 4864 kWh 3405 kWh 1459 kWh £855 £146 £1,001 £11,639 11.6 yrs £8,371
6 kW 5837 kWh 4086 kWh 1751 kWh £1,026 £175 £1,201 £13,267 11.0 yrs £10,746
7 kW 6810 kWh 4767 kWh 2043 kWh £1,196 £204 £1,401 £14,894 10.6 yrs £13,120
8 kW 7782 kWh 5448 kWh 2335 kWh £1,367 £233 £1,601 £16,522 10.3 yrs £15,494

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 1946 kWh 1420 kWh 525 kWh £356 £53 £409 £8,506 20.8 yrs £-325
3 kW 2918 kWh 2130 kWh 788 kWh £535 £79 £614 £10,133 16.5 yrs £2,137
4 kW 3891 kWh 2841 kWh 1051 kWh £713 £105 £818 £11,761 14.4 yrs £4,600
5 kW 4864 kWh 3551 kWh 1313 kWh £891 £131 £1,023 £13,389 13.1 yrs £7,062
6 kW 5837 kWh 4261 kWh 1576 kWh £1,069 £158 £1,227 £15,017 12.2 yrs £9,525
7 kW 6810 kWh 4971 kWh 1839 kWh £1,248 £184 £1,432 £16,644 11.6 yrs £11,987
8 kW 7782 kWh 5681 kWh 2101 kWh £1,426 £210 £1,636 £18,272 11.2 yrs £14,449

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: £1,037, 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 1946 kWh 1459 kWh 486 kWh £366 £49 £415 £10,256 24.7 yrs £-1,958
3 kW 2918 kWh 2189 kWh 730 kWh £549 £73 £622 £11,883 19.1 yrs £564
4 kW 3891 kWh 2918 kWh 973 kWh £733 £97 £830 £13,511 16.3 yrs £3,085
5 kW 4864 kWh 3648 kWh 1216 kWh £916 £122 £1,037 £15,139 14.6 yrs £5,606
6 kW 5837 kWh 4378 kWh 1459 kWh £1,099 £146 £1,245 £16,767 13.5 yrs £8,127
7 kW 6810 kWh 5107 kWh 1702 kWh £1,282 £170 £1,452 £18,394 12.7 yrs £10,648
8 kW 7782 kWh 5837 kWh 1946 kWh £1,465 £195 £1,660 £20,022 12.1 yrs £13,170

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 1946 kWh 1498 kWh 447 kWh £376 £45 £421 £12,706 30.2 yrs £-4,290
3 kW 2918 kWh 2247 kWh 671 kWh £564 £67 £631 £14,333 22.7 yrs £-1,710
4 kW 3891 kWh 2996 kWh 895 kWh £752 £89 £842 £15,961 19.0 yrs £870
5 kW 4864 kWh 3745 kWh 1119 kWh £940 £112 £1,052 £17,589 16.7 yrs £3,450
6 kW 5837 kWh 4494 kWh 1342 kWh £1,128 £134 £1,262 £19,217 15.2 yrs £6,030
7 kW 6810 kWh 5243 kWh 1566 kWh £1,316 £157 £1,473 £20,844 14.2 yrs £8,610
8 kW 7782 kWh 5992 kWh 1790 kWh £1,504 £179 £1,683 £22,472 13.4 yrs £11,190

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.

Seasonal solar output in CV21

Monthly generation per kilowatt of solar panels

kWh 37 Jan 51 Feb 84 Mar 109 Apr 118 May 117 Jun 119 Jul 107 Aug 90 Sep 64 Oct 44 Nov 32 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 49.6% 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 40 kWh per month; the average month produces around 81 kWh. So a typical 4 kW home system would generate roughly 161 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: 64% • Flats: 30% • Bungalows: 4% Based on 12,274 properties

Coverage

Rugby (93%)|Warwick (7%)

Areas Covered

Newbold and Brownsover, Benn, Eastlands, New Bilton, Hillmorton, Leamington Willes, Coton and Boughton, Paddox + 2 more

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.