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Solar Panels in CH27 (Wirral)

See if solar pays off for you in Wirral — 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
12.7 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£798
What you save every year
Profit Over 25 Years
£9,774
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 934 kWh/kW — 4 above 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 934 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)
934 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: £798, Upfront: £10,173, Break-even: 12.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1868 kWh 747 kWh 1121 kWh £207 £112 £319 £4,069 12.7 yrs £2,314
3 kW 2802 kWh 1121 kWh 1681 kWh £311 £168 £479 £6,104 12.7 yrs £3,471
4 kW 3735 kWh 1494 kWh 2241 kWh £414 £224 £638 £8,138 12.7 yrs £4,628
5 kW 4669 kWh 1868 kWh 2802 kWh £518 £280 £798 £10,173 12.7 yrs £5,785
6 kW 5603 kWh 2241 kWh 3362 kWh £621 £336 £957 £12,207 12.7 yrs £6,942
7 kW 6537 kWh 2615 kWh 3922 kWh £725 £392 £1,117 £14,242 12.7 yrs £8,099
8 kW 7471 kWh 2988 kWh 4482 kWh £828 £448 £1,277 £16,276 12.7 yrs £9,256

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: £963, Upfront: £12,273, Break-even: 12.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1868 kWh 1121 kWh 747 kWh £311 £75 £385 £6,169 16.0 yrs £1,538
3 kW 2802 kWh 1681 kWh 1121 kWh £466 £112 £578 £8,204 14.2 yrs £3,357
4 kW 3735 kWh 2241 kWh 1494 kWh £621 £149 £771 £10,238 13.3 yrs £5,176
5 kW 4669 kWh 2802 kWh 1868 kWh £777 £187 £963 £12,273 12.7 yrs £6,995
6 kW 5603 kWh 3362 kWh 2241 kWh £932 £224 £1,156 £14,307 12.4 yrs £8,814
7 kW 6537 kWh 3922 kWh 2615 kWh £1,087 £261 £1,349 £16,342 12.1 yrs £10,633
8 kW 7471 kWh 4482 kWh 2988 kWh £1,243 £299 £1,541 £18,376 11.9 yrs £12,451

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: £1,046, 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 1868 kWh 1307 kWh 560 kWh £362 £56 £418 £7,569 18.1 yrs £800
3 kW 2802 kWh 1961 kWh 840 kWh £544 £84 £628 £9,604 15.3 yrs £2,950
4 kW 3735 kWh 2615 kWh 1121 kWh £725 £112 £837 £11,638 13.9 yrs £5,100
5 kW 4669 kWh 3268 kWh 1401 kWh £906 £140 £1,046 £13,673 13.1 yrs £7,249
6 kW 5603 kWh 3922 kWh 1681 kWh £1,087 £168 £1,255 £15,707 12.5 yrs £9,399
7 kW 6537 kWh 4576 kWh 1961 kWh £1,268 £196 £1,465 £17,742 12.1 yrs £11,549
8 kW 7471 kWh 5230 kWh 2241 kWh £1,450 £224 £1,674 £19,776 11.8 yrs £13,699

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: £1,071, Upfront: £15,423, Break-even: 14.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1868 kWh 1363 kWh 504 kWh £378 £50 £428 £9,319 21.8 yrs £-752
3 kW 2802 kWh 2045 kWh 756 kWh £567 £76 £643 £11,354 17.7 yrs £1,498
4 kW 3735 kWh 2727 kWh 1009 kWh £756 £101 £857 £13,388 15.6 yrs £3,747
5 kW 4669 kWh 3409 kWh 1261 kWh £945 £126 £1,071 £15,423 14.4 yrs £5,996
6 kW 5603 kWh 4090 kWh 1513 kWh £1,134 £151 £1,285 £17,457 13.6 yrs £8,245
7 kW 6537 kWh 4772 kWh 1765 kWh £1,323 £176 £1,499 £19,492 13.0 yrs £10,494
8 kW 7471 kWh 5454 kWh 2017 kWh £1,512 £202 £1,713 £21,526 12.6 yrs £12,743

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: £1,087, Upfront: £17,173, Break-even: 15.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1868 kWh 1401 kWh 467 kWh £388 £47 £435 £11,069 25.4 yrs £-2,369
3 kW 2802 kWh 2101 kWh 700 kWh £582 £70 £652 £13,104 20.1 yrs £-54
4 kW 3735 kWh 2802 kWh 934 kWh £777 £93 £870 £15,138 17.4 yrs £2,261
5 kW 4669 kWh 3502 kWh 1167 kWh £971 £117 £1,087 £17,173 15.8 yrs £4,577
6 kW 5603 kWh 4202 kWh 1401 kWh £1,165 £140 £1,305 £19,207 14.7 yrs £6,892
7 kW 6537 kWh 4903 kWh 1634 kWh £1,359 £163 £1,522 £21,242 14.0 yrs £9,208
8 kW 7471 kWh 5603 kWh 1868 kWh £1,553 £187 £1,740 £23,276 13.4 yrs £11,523

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: £1,104, Upfront: £19,623, Break-even: 17.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1868 kWh 1438 kWh 430 kWh £399 £43 £442 £13,519 30.6 yrs £-4,687
3 kW 2802 kWh 2157 kWh 644 kWh £598 £64 £662 £15,554 23.5 yrs £-2,305
4 kW 3735 kWh 2876 kWh 859 kWh £797 £86 £883 £17,588 19.9 yrs £76
5 kW 4669 kWh 3595 kWh 1074 kWh £997 £107 £1,104 £19,623 17.8 yrs £2,458
6 kW 5603 kWh 4314 kWh 1289 kWh £1,196 £129 £1,325 £21,657 16.3 yrs £4,839
7 kW 6537 kWh 5033 kWh 1503 kWh £1,395 £150 £1,546 £23,692 15.3 yrs £7,221
8 kW 7471 kWh 5753 kWh 1718 kWh £1,595 £172 £1,766 £25,726 14.6 yrs £9,602

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 CH27

Figures below are tailored to CH27 — click through for full league tables.

Solar Payback Index Rank #1189 of 2997
11.0 years (UK avg 11.3 years)
~£922 /yr • £10,173 upfront
Standing-Charge Drag Rank #2483 of 2997
27.7% (UK avg 21.7%) drag on savings
£255 fixed • ~£922 /yr value

Your Area at a Glance

Your Electricity Rate
27.72p/kWh
Daily Fixed Charge
69.95p/day
Local Sunshine
934kWh/kW
A 1 kW system generates ~934 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

No EPC data available for this outcode

Coverage

Wirral (100%)

Areas Covered

Liscard, Seacombe

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

CH45 (Wirral)
≈0.7 km away
Local sunshine: ~950 kWh/kWp · +2% vs CH27
CH44 (Wirral)
≈0.8 km away
Local sunshine: ~934 kWh/kWp · +0% vs CH27
L45 (Wirral)
≈0.9 km away
Local sunshine: ~950 kWh/kWp · +2% vs CH27
L44 (Wirral)
≈1.0 km away
Local sunshine: ~934 kWh/kWp · +0% vs CH27
CH41 (Wirral)
≈3.1 km away
Local sunshine: ~945 kWh/kWp · +1% vs CH27
L41 (Wirral)
≈3.2 km away
Local sunshine: ~931 kWh/kWp · -0% vs CH27

Similar sunshine across the UK

YO51 (North Yorkshire)
~934 kWh/kWp · -0% vs CH27
DE6 (Derbyshire Dales)
~934 kWh/kWp · -0% vs CH27
WV98 (Wyre Forest)
~934 kWh/kWp · +0% vs CH27