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Solar panel cost in Wirral (CH27)

See realistic solar installation costs, savings and payback for CH27 (Wirral) 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
10.2 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£797
What you save every year
Profit Over 25 Years
£11,780
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 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
70.8p/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: £797, Upfront: £8,139, Break-even: 10.2 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 £3,256 10.2 yrs £3,119
3 kW 2802 kWh 1121 kWh 1681 kWh £310 £168 £478 £4,883 10.2 yrs £4,678
4 kW 3735 kWh 1494 kWh 2241 kWh £413 £224 £637 £6,511 10.2 yrs £6,237
5 kW 4669 kWh 1868 kWh 2802 kWh £517 £280 £797 £8,139 10.2 yrs £7,796
6 kW 5603 kWh 2241 kWh 3362 kWh £620 £336 £956 £9,767 10.2 yrs £9,356
7 kW 6537 kWh 2615 kWh 3922 kWh £723 £392 £1,115 £11,394 10.2 yrs £10,915
8 kW 7471 kWh 2988 kWh 4482 kWh £827 £448 £1,275 £13,022 10.2 yrs £12,474

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: £962, Upfront: £10,239, Break-even: 10.6 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 £310 £75 £385 £5,356 13.9 yrs £2,338
3 kW 2802 kWh 1681 kWh 1121 kWh £465 £112 £577 £6,983 12.1 yrs £4,557
4 kW 3735 kWh 2241 kWh 1494 kWh £620 £149 £769 £8,611 11.2 yrs £6,776
5 kW 4669 kWh 2802 kWh 1868 kWh £775 £187 £962 £10,239 10.6 yrs £8,995
6 kW 5603 kWh 3362 kWh 2241 kWh £930 £224 £1,154 £11,867 10.3 yrs £11,214
7 kW 6537 kWh 3922 kWh 2615 kWh £1,085 £261 £1,346 £13,494 10.0 yrs £13,433
8 kW 7471 kWh 4482 kWh 2988 kWh £1,240 £299 £1,539 £15,122 9.8 yrs £15,652

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: £1,044, Upfront: £11,639, Break-even: 11.1 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 £6,756 16.2 yrs £1,598
3 kW 2802 kWh 1961 kWh 840 kWh £542 £84 £626 £8,383 13.4 yrs £4,146
4 kW 3735 kWh 2615 kWh 1121 kWh £723 £112 £835 £10,011 12.0 yrs £6,695
5 kW 4669 kWh 3268 kWh 1401 kWh £904 £140 £1,044 £11,639 11.1 yrs £9,244
6 kW 5603 kWh 3922 kWh 1681 kWh £1,085 £168 £1,253 £13,267 10.6 yrs £11,793
7 kW 6537 kWh 4576 kWh 1961 kWh £1,266 £196 £1,462 £14,894 10.2 yrs £14,342
8 kW 7471 kWh 5230 kWh 2241 kWh £1,446 £224 £1,671 £16,522 9.9 yrs £16,890

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: £1,069, Upfront: £13,389, Break-even: 12.5 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 £377 £50 £428 £8,506 19.9 yrs £45
3 kW 2802 kWh 2045 kWh 756 kWh £566 £76 £641 £10,133 15.8 yrs £2,693
4 kW 3735 kWh 2727 kWh 1009 kWh £754 £101 £855 £11,761 13.8 yrs £5,341
5 kW 4669 kWh 3409 kWh 1261 kWh £943 £126 £1,069 £13,389 12.5 yrs £7,989
6 kW 5603 kWh 4090 kWh 1513 kWh £1,131 £151 £1,283 £15,017 11.7 yrs £10,636
7 kW 6537 kWh 4772 kWh 1765 kWh £1,320 £176 £1,496 £16,644 11.1 yrs £13,284
8 kW 7471 kWh 5454 kWh 2017 kWh £1,508 £202 £1,710 £18,272 10.7 yrs £15,932

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: £1,085, Upfront: £15,139, Break-even: 13.9 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 £387 £47 £434 £10,256 23.6 yrs £-1,573
3 kW 2802 kWh 2101 kWh 700 kWh £581 £70 £651 £11,883 18.2 yrs £1,141
4 kW 3735 kWh 2802 kWh 934 kWh £775 £93 £868 £13,511 15.6 yrs £3,855
5 kW 4669 kWh 3502 kWh 1167 kWh £969 £117 £1,085 £15,139 13.9 yrs £6,569
6 kW 5603 kWh 4202 kWh 1401 kWh £1,162 £140 £1,302 £16,767 12.9 yrs £9,282
7 kW 6537 kWh 4903 kWh 1634 kWh £1,356 £163 £1,520 £18,394 12.1 yrs £11,996
8 kW 7471 kWh 5603 kWh 1868 kWh £1,550 £187 £1,737 £20,022 11.5 yrs £14,710

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: £1,102, Upfront: £17,589, Break-even: 16.0 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 £398 £43 £441 £12,706 28.8 yrs £-3,891
3 kW 2802 kWh 2157 kWh 644 kWh £597 £64 £661 £14,333 21.7 yrs £-1,111
4 kW 3735 kWh 2876 kWh 859 kWh £796 £86 £881 £15,961 18.1 yrs £1,669
5 kW 4669 kWh 3595 kWh 1074 kWh £994 £107 £1,102 £17,589 16.0 yrs £4,448
6 kW 5603 kWh 4314 kWh 1289 kWh £1,193 £129 £1,322 £19,217 14.5 yrs £7,228
7 kW 6537 kWh 5033 kWh 1503 kWh £1,392 £150 £1,543 £20,844 13.5 yrs £10,008
8 kW 7471 kWh 5753 kWh 1718 kWh £1,591 £172 £1,763 £22,472 12.7 yrs £12,787

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 Wirral

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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Check what MCS certification means

Understand DNO, G98 and G99 export limits

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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.

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Insights for CH27

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

Solar Payback Index Rank #1264 of 2996
10.2 years (UK avg 10.8 years)
~£797 /yr • £8,139 upfront
Standing-Charge Drag Rank #2477 of 2996
32.4% (UK avg 26.6%) drag on savings
£258 fixed • ~£797 /yr value
Aspect Penalty View ranking →
East −20.4% West −22.3%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in CH27

Monthly generation per kilowatt of solar panels

kWh 32 Jan 50 Feb 83 Mar 111 Apr 122 May 115 Jun 114 Jul 103 Aug 83 Sep 57 Oct 37 Nov 28 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 46.9% 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 37 kWh per month; the average month produces around 78 kWh. So a typical 4 kW home system would generate roughly 146 kWh in winter, or 311 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
27.66p/kWh
Daily Fixed Charge
70.76p/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, 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

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