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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in CW6 (Cheshire West and Chester)

See if solar pays off for you in Cheshire West and Chester — 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
12.8 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£952
What you save every year
Profit Over 25 Years
£11,595
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 North Wales and Mersey, the current unit rate is 27.72p/kWh with a 69.95p/day standing charge. Your postcode’s south-facing sunshine yield is 929 kWh/kW — 1 below the regional median (930).

Read the full story

A typical roof here lands around 6.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 929 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
70.0p/day
Sunshine yield (south)
929 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: £793, Upfront: £10,173, 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 1857 kWh 743 kWh 1114 kWh £206 £111 £317 £4,069 12.8 yrs £2,278
3 kW 2786 kWh 1114 kWh 1672 kWh £309 £167 £476 £6,104 12.8 yrs £3,417
4 kW 3714 kWh 1486 kWh 2229 kWh £412 £223 £635 £8,138 12.8 yrs £4,557
5 kW 4643 kWh 1857 kWh 2786 kWh £515 £279 £793 £10,173 12.8 yrs £5,696
6 kW 5572 kWh 2229 kWh 3343 kWh £618 £334 £952 £12,207 12.8 yrs £6,835
7 kW 6500 kWh 2600 kWh 3900 kWh £721 £390 £1,111 £14,242 12.8 yrs £7,974
8 kW 7429 kWh 2972 kWh 4457 kWh £824 £446 £1,269 £16,276 12.8 yrs £9,113

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: £958, Upfront: £12,273, 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 1857 kWh 1114 kWh 743 kWh £309 £74 £383 £6,169 16.1 yrs £1,495
3 kW 2786 kWh 1672 kWh 1114 kWh £463 £111 £575 £8,204 14.3 yrs £3,292
4 kW 3714 kWh 2229 kWh 1486 kWh £618 £149 £766 £10,238 13.4 yrs £5,089
5 kW 4643 kWh 2786 kWh 1857 kWh £772 £186 £958 £12,273 12.8 yrs £6,887
6 kW 5572 kWh 3343 kWh 2229 kWh £927 £223 £1,150 £14,307 12.4 yrs £8,684
7 kW 6500 kWh 3900 kWh 2600 kWh £1,081 £260 £1,341 £16,342 12.2 yrs £10,481
8 kW 7429 kWh 4457 kWh 2972 kWh £1,236 £297 £1,533 £18,376 12.0 yrs £12,279

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: £1,040, Upfront: £13,673, 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 1857 kWh 1300 kWh 557 kWh £360 £56 £416 £7,569 18.2 yrs £753
3 kW 2786 kWh 1950 kWh 836 kWh £541 £84 £624 £9,604 15.4 yrs £2,879
4 kW 3714 kWh 2600 kWh 1114 kWh £721 £111 £832 £11,638 14.0 yrs £5,006
5 kW 4643 kWh 3250 kWh 1393 kWh £901 £139 £1,040 £13,673 13.1 yrs £7,132
6 kW 5572 kWh 3900 kWh 1672 kWh £1,081 £167 £1,248 £15,707 12.6 yrs £9,259
7 kW 6500 kWh 4550 kWh 1950 kWh £1,261 £195 £1,456 £17,742 12.2 yrs £11,385
8 kW 7429 kWh 5200 kWh 2229 kWh £1,442 £223 £1,664 £19,776 11.9 yrs £13,512

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: £1,065, Upfront: £15,423, Break-even: 14.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1857 kWh 1356 kWh 501 kWh £376 £50 £426 £9,319 21.9 yrs £-800
3 kW 2786 kWh 2034 kWh 752 kWh £564 £75 £639 £11,354 17.8 yrs £1,426
4 kW 3714 kWh 2712 kWh 1003 kWh £752 £100 £852 £13,388 15.7 yrs £3,651
5 kW 4643 kWh 3389 kWh 1254 kWh £940 £125 £1,065 £15,423 14.5 yrs £5,876
6 kW 5572 kWh 4067 kWh 1504 kWh £1,127 £150 £1,278 £17,457 13.7 yrs £8,101
7 kW 6500 kWh 4745 kWh 1755 kWh £1,315 £176 £1,491 £19,492 13.1 yrs £10,326
8 kW 7429 kWh 5423 kWh 2006 kWh £1,503 £201 £1,704 £21,526 12.6 yrs £12,551

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: £1,081, Upfront: £17,173, Break-even: 15.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1857 kWh 1393 kWh 464 kWh £386 £46 £433 £11,069 25.6 yrs £-2,418
3 kW 2786 kWh 2089 kWh 696 kWh £579 £70 £649 £13,104 20.2 yrs £-127
4 kW 3714 kWh 2786 kWh 929 kWh £772 £93 £865 £15,138 17.5 yrs £2,164
5 kW 4643 kWh 3482 kWh 1161 kWh £965 £116 £1,081 £17,173 15.9 yrs £4,455
6 kW 5572 kWh 4179 kWh 1393 kWh £1,158 £139 £1,298 £19,207 14.8 yrs £6,746
7 kW 6500 kWh 4875 kWh 1625 kWh £1,351 £163 £1,514 £21,242 14.0 yrs £9,037
8 kW 7429 kWh 5572 kWh 1857 kWh £1,544 £186 £1,730 £23,276 13.5 yrs £11,328

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: £1,098, Upfront: £19,623, Break-even: 17.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1857 kWh 1430 kWh 427 kWh £396 £43 £439 £13,519 30.8 yrs £-4,736
3 kW 2786 kWh 2145 kWh 641 kWh £595 £64 £659 £15,554 23.6 yrs £-2,380
4 kW 3714 kWh 2860 kWh 854 kWh £793 £85 £878 £17,588 20.0 yrs £-23
5 kW 4643 kWh 3575 kWh 1068 kWh £991 £107 £1,098 £19,623 17.9 yrs £2,334
6 kW 5572 kWh 4290 kWh 1281 kWh £1,189 £128 £1,317 £21,657 16.4 yrs £4,691
7 kW 6500 kWh 5005 kWh 1495 kWh £1,387 £150 £1,537 £23,692 15.4 yrs £7,048
8 kW 7429 kWh 5720 kWh 1709 kWh £1,586 £171 £1,757 £25,726 14.6 yrs £9,405

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 CW6

Figures below are tailored to CW6 — click through for full league tables.

Big-Roof Britain Rank #33 of 2182
7.2 kWp (UK avg 5.1 kWp)
~15 panels (≈430 W)
Solar Payback Index Rank #1337 of 2997
11.1 years (UK avg 11.3 years)
~£1,100 /yr • £12,207 upfront
Standing-Charge Drag Rank #2092 of 2997
23.2% (UK avg 21.7%) drag on savings
£255 fixed • ~£1,100 /yr value

Your Area at a Glance

Your Electricity Rate
27.72p/kWh
Daily Fixed Charge
69.95p/day
Local Sunshine
929kWh/kW
A 1 kW system generates ~929 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
6.0kW
For houses & bungalows in this area

Local Property Data

Property Types

Houses: 81% • Flats: 4% • Bungalows: 14% Based on 3,628 properties

Coverage

Cheshire West and Chester (82%)|Cheshire East (18%)

Areas Covered

Tarporley, Tarvin & Kelsall, Bunbury, Tattenhall, Wrenbury, Sandstone, Winsford Over & Verdin

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 North Wales and Mersey

CW7 (Cheshire West and Chester)
≈10.2 km away
Local sunshine: ~926 kWh/kWp · -0% vs CW6
CH3 (Cheshire West and Chester)
≈12.0 km away
Local sunshine: ~930 kWh/kWp · +0% vs CW6
WA6 (Cheshire West and Chester)
≈13.5 km away
Local sunshine: ~915 kWh/kWp · -1% vs CW6
CW8 (Cheshire West and Chester)
≈13.5 km away
Local sunshine: ~926 kWh/kWp · -0% vs CW6
CW5 (Cheshire East)
≈14.1 km away
Local sunshine: ~931 kWh/kWp · +0% vs CW6
CH2 (Cheshire West and Chester)
≈14.9 km away
Local sunshine: ~930 kWh/kWp · +0% vs CW6

Similar sunshine across the UK

DH2 (County Durham)
~929 kWh/kWp · +0% vs CW6
LS9 (Leeds)
~929 kWh/kWp · +0% vs CW6
SA11 (Neath Port Talbot)
~929 kWh/kWp · -0% vs CW6