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Solar panel cost in Cheshire West and Chester (CW9)

See realistic solar installation costs, savings and payback for CW9 (Cheshire West and Chester) 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
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
£11,353
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

In North Wales and Mersey, the current unit rate is 27.66p/kWh with a 70.76p/day standing charge. Your postcode’s south-facing sunshine yield is 914 kWh/kW — 16 below the regional median (930).

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 914 kWh per year on a south-facing roof. We value self-used electricity at 27.7p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
27.7p/kWh
Standing charge
70.8p/day
Sunshine yield (south)
914 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 1828 kWh 731 kWh 1097 kWh £202 £110 £312 £3,256 10.4 yrs £2,982
3 kW 2742 kWh 1097 kWh 1645 kWh £303 £164 £468 £4,883 10.4 yrs £4,473
4 kW 3655 kWh 1462 kWh 2193 kWh £404 £219 £624 £6,511 10.4 yrs £5,964
5 kW 4569 kWh 1828 kWh 2742 kWh £506 £274 £780 £8,139 10.4 yrs £7,455
6 kW 5483 kWh 2193 kWh 3290 kWh £607 £329 £936 £9,767 10.4 yrs £8,946
7 kW 6397 kWh 2559 kWh 3838 kWh £708 £384 £1,092 £11,394 10.4 yrs £10,437
8 kW 7311 kWh 2924 kWh 4386 kWh £809 £439 £1,248 £13,022 10.4 yrs £11,928

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: £941, Upfront: £10,239, Break-even: 10.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1828 kWh 1097 kWh 731 kWh £303 £73 £376 £5,356 14.2 yrs £2,173
3 kW 2742 kWh 1645 kWh 1097 kWh £455 £110 £565 £6,983 12.4 yrs £4,310
4 kW 3655 kWh 2193 kWh 1462 kWh £607 £146 £753 £8,611 11.4 yrs £6,446
5 kW 4569 kWh 2742 kWh 1828 kWh £758 £183 £941 £10,239 10.9 yrs £8,583
6 kW 5483 kWh 3290 kWh 2193 kWh £910 £219 £1,129 £11,867 10.5 yrs £10,719
7 kW 6397 kWh 3838 kWh 2559 kWh £1,062 £256 £1,318 £13,494 10.2 yrs £12,856
8 kW 7311 kWh 4386 kWh 2924 kWh £1,213 £292 £1,506 £15,122 10.0 yrs £14,992

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: £1,022, Upfront: £11,639, Break-even: 11.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1828 kWh 1279 kWh 548 kWh £354 £55 £409 £6,756 16.5 yrs £1,419
3 kW 2742 kWh 1919 kWh 822 kWh £531 £82 £613 £8,383 13.7 yrs £3,878
4 kW 3655 kWh 2559 kWh 1097 kWh £708 £110 £817 £10,011 12.2 yrs £6,337
5 kW 4569 kWh 3198 kWh 1371 kWh £885 £137 £1,022 £11,639 11.4 yrs £8,796
6 kW 5483 kWh 3838 kWh 1645 kWh £1,062 £164 £1,226 £13,267 10.8 yrs £11,256
7 kW 6397 kWh 4478 kWh 1919 kWh £1,239 £192 £1,430 £14,894 10.4 yrs £13,715
8 kW 7311 kWh 5118 kWh 2193 kWh £1,416 £219 £1,635 £16,522 10.1 yrs £16,174

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: £1,046, Upfront: £13,389, Break-even: 12.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1828 kWh 1334 kWh 493 kWh £369 £49 £418 £8,506 20.3 yrs £-138
3 kW 2742 kWh 2001 kWh 740 kWh £554 £74 £628 £10,133 16.1 yrs £2,418
4 kW 3655 kWh 2668 kWh 987 kWh £738 £99 £837 £11,761 14.1 yrs £4,975
5 kW 4569 kWh 3336 kWh 1234 kWh £923 £123 £1,046 £13,389 12.8 yrs £7,531
6 kW 5483 kWh 4003 kWh 1480 kWh £1,107 £148 £1,255 £15,017 12.0 yrs £10,087
7 kW 6397 kWh 4670 kWh 1727 kWh £1,292 £173 £1,464 £16,644 11.4 yrs £12,643
8 kW 7311 kWh 5337 kWh 1974 kWh £1,476 £197 £1,674 £18,272 10.9 yrs £15,199

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: £1,062, Upfront: £15,139, Break-even: 14.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1828 kWh 1371 kWh 457 kWh £379 £46 £425 £10,256 24.1 yrs £-1,759
3 kW 2742 kWh 2056 kWh 685 kWh £569 £69 £637 £11,883 18.6 yrs £862
4 kW 3655 kWh 2742 kWh 914 kWh £758 £91 £850 £13,511 15.9 yrs £3,483
5 kW 4569 kWh 3427 kWh 1142 kWh £948 £114 £1,062 £15,139 14.3 yrs £6,103
6 kW 5483 kWh 4112 kWh 1371 kWh £1,137 £137 £1,275 £16,767 13.2 yrs £8,724
7 kW 6397 kWh 4798 kWh 1599 kWh £1,327 £160 £1,487 £18,394 12.4 yrs £11,345
8 kW 7311 kWh 5483 kWh 1828 kWh £1,517 £183 £1,699 £20,022 11.8 yrs £13,965

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: £1,078, Upfront: £17,589, Break-even: 16.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1828 kWh 1407 kWh 420 kWh £389 £42 £431 £12,706 29.5 yrs £-4,080
3 kW 2742 kWh 2111 kWh 631 kWh £584 £63 £647 £14,333 22.2 yrs £-1,394
4 kW 3655 kWh 2815 kWh 841 kWh £779 £84 £863 £15,961 18.5 yrs £1,291
5 kW 4569 kWh 3518 kWh 1051 kWh £973 £105 £1,078 £17,589 16.3 yrs £3,976
6 kW 5483 kWh 4222 kWh 1261 kWh £1,168 £126 £1,294 £19,217 14.9 yrs £6,661
7 kW 6397 kWh 4926 kWh 1471 kWh £1,362 £147 £1,510 £20,844 13.8 yrs £9,347
8 kW 7311 kWh 5629 kWh 1681 kWh £1,557 £168 £1,725 £22,472 13.0 yrs £12,032

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 Cheshire West and Chester

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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Understand DNO, G98 and G99 export limits

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Insights for CW9

Figures below are tailored to CW9 — click through for full league tables.

Big-Roof Britain Rank #1225 of 2182
4.9 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #1449 of 2996
10.4 years (UK avg 10.8 years)
~£780 /yr • £8,139 upfront
Standing-Charge Drag Rank #2539 of 2996
33.1% (UK avg 26.6%) drag on savings
£258 fixed • ~£780 /yr value
Aspect Penalty View ranking →
East −20.2% West −19.8%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in CW9

Monthly generation per kilowatt of solar panels

kWh 30 Jan 48 Feb 80 Mar 107 Apr 116 May 113 Jun 111 Jul 101 Aug 84 Sep 58 Oct 38 Nov 28 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 46.0% 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 35 kWh per month; the average month produces around 76 kWh. So a typical 4 kW home system would generate roughly 140 kWh in winter, or 305 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
27.66p/kWh
Daily Fixed Charge
70.76p/day
Local Sunshine
914kWh/kW
A 1 kW system generates ~914 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: 75% • Flats: 14% • Bungalows: 9% Based on 9,057 properties

Coverage

Cheshire West and Chester (99%)|Cheshire East (1%)

Areas Covered

Northwich Witton, Davenham, Moulton & Kingsmead, Marbury, Northwich Leftwich, Rudheath, Shakerley, High Legh + 5 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.

Compare nearby areas

Nearby in North Wales and Mersey

CW8 (Cheshire West and Chester)
≈2.7 km away
Local sunshine: ~926 kWh/kWp · +1% vs CW9
CW7 (Cheshire West and Chester)
≈7.7 km away
Local sunshine: ~926 kWh/kWp · +1% vs CW9
CW10 (Cheshire East)
≈9.0 km away
Local sunshine: ~911 kWh/kWp · -0% vs CW9
WA16 (Cheshire East)
≈10.9 km away
Local sunshine: ~904 kWh/kWp · -1% vs CW9
CW4 (Cheshire East)
≈12.2 km away
Local sunshine: ~903 kWh/kWp · -1% vs CW9
WA13 (Warrington)
≈13.5 km away
Local sunshine: ~902 kWh/kWp · -1% vs CW9

Similar sunshine across the UK

LS2 (Leeds)
~914 kWh/kWp · +0% vs CW9
BD4 (Bradford)
~914 kWh/kWp · +0% vs CW9
LS6 (Leeds)
~914 kWh/kWp · +0% vs CW9