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Solar panel cost in Liverpool (L15)

See realistic solar installation costs, savings and payback for L15 (Liverpool) 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
£785
What you save every year
Profit Over 25 Years
£11,491
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 920 kWh/kW — 10 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 920 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)
920 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: £785, 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 1841 kWh 736 kWh 1104 kWh £204 £110 £314 £3,256 10.4 yrs £3,026
3 kW 2761 kWh 1104 kWh 1657 kWh £305 £166 £471 £4,883 10.4 yrs £4,539
4 kW 3681 kWh 1472 kWh 2209 kWh £407 £221 £628 £6,511 10.4 yrs £6,052
5 kW 4601 kWh 1841 kWh 2761 kWh £509 £276 £785 £8,139 10.4 yrs £7,565
6 kW 5522 kWh 2209 kWh 3313 kWh £611 £331 £942 £9,767 10.4 yrs £9,078
7 kW 6442 kWh 2577 kWh 3865 kWh £713 £387 £1,099 £11,394 10.4 yrs £10,591
8 kW 7362 kWh 2945 kWh 4417 kWh £815 £442 £1,256 £13,022 10.4 yrs £12,104

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: £948, Upfront: £10,239, Break-even: 10.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1841 kWh 1104 kWh 736 kWh £305 £74 £379 £5,356 14.1 yrs £2,226
3 kW 2761 kWh 1657 kWh 1104 kWh £458 £110 £569 £6,983 12.3 yrs £4,389
4 kW 3681 kWh 2209 kWh 1472 kWh £611 £147 £758 £8,611 11.4 yrs £6,552
5 kW 4601 kWh 2761 kWh 1841 kWh £764 £184 £948 £10,239 10.8 yrs £8,715
6 kW 5522 kWh 3313 kWh 2209 kWh £916 £221 £1,137 £11,867 10.4 yrs £10,878
7 kW 6442 kWh 3865 kWh 2577 kWh £1,069 £258 £1,327 £13,494 10.2 yrs £13,041
8 kW 7362 kWh 4417 kWh 2945 kWh £1,222 £294 £1,516 £15,122 10.0 yrs £15,204

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: £1,029, Upfront: £11,639, Break-even: 11.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1841 kWh 1288 kWh 552 kWh £356 £55 £412 £6,756 16.4 yrs £1,476
3 kW 2761 kWh 1933 kWh 828 kWh £535 £83 £617 £8,383 13.6 yrs £3,964
4 kW 3681 kWh 2577 kWh 1104 kWh £713 £110 £823 £10,011 12.2 yrs £6,452
5 kW 4601 kWh 3221 kWh 1380 kWh £891 £138 £1,029 £11,639 11.3 yrs £8,941
6 kW 5522 kWh 3865 kWh 1657 kWh £1,069 £166 £1,235 £13,267 10.7 yrs £11,429
7 kW 6442 kWh 4509 kWh 1933 kWh £1,247 £193 £1,441 £14,894 10.3 yrs £13,917
8 kW 7362 kWh 5154 kWh 2209 kWh £1,425 £221 £1,646 £16,522 10.0 yrs £16,405

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: £1,053, Upfront: £13,389, 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 1841 kWh 1344 kWh 497 kWh £372 £50 £421 £8,506 20.2 yrs £-79
3 kW 2761 kWh 2015 kWh 745 kWh £557 £75 £632 £10,133 16.0 yrs £2,507
4 kW 3681 kWh 2687 kWh 994 kWh £743 £99 £843 £11,761 14.0 yrs £5,092
5 kW 4601 kWh 3359 kWh 1242 kWh £929 £124 £1,053 £13,389 12.7 yrs £7,678
6 kW 5522 kWh 4031 kWh 1491 kWh £1,115 £149 £1,264 £15,017 11.9 yrs £10,264
7 kW 6442 kWh 4703 kWh 1739 kWh £1,301 £174 £1,475 £16,644 11.3 yrs £12,849
8 kW 7362 kWh 5374 kWh 1988 kWh £1,487 £199 £1,685 £18,272 10.8 yrs £15,435

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: £1,070, Upfront: £15,139, Break-even: 14.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1841 kWh 1380 kWh 460 kWh £382 £46 £428 £10,256 24.0 yrs £-1,699
3 kW 2761 kWh 2071 kWh 690 kWh £573 £69 £642 £11,883 18.5 yrs £952
4 kW 3681 kWh 2761 kWh 920 kWh £764 £92 £856 £13,511 15.8 yrs £3,602
5 kW 4601 kWh 3451 kWh 1150 kWh £955 £115 £1,070 £15,139 14.2 yrs £6,253
6 kW 5522 kWh 4141 kWh 1380 kWh £1,145 £138 £1,284 £16,767 13.1 yrs £8,904
7 kW 6442 kWh 4831 kWh 1610 kWh £1,336 £161 £1,497 £18,394 12.3 yrs £11,554
8 kW 7362 kWh 5522 kWh 1841 kWh £1,527 £184 £1,711 £20,022 11.7 yrs £14,205

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: £1,086, Upfront: £17,589, Break-even: 16.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1841 kWh 1417 kWh 423 kWh £392 £42 £434 £12,706 29.3 yrs £-4,019
3 kW 2761 kWh 2126 kWh 635 kWh £588 £63 £652 £14,333 22.0 yrs £-1,303
4 kW 3681 kWh 2834 kWh 847 kWh £784 £85 £869 £15,961 18.4 yrs £1,413
5 kW 4601 kWh 3543 kWh 1058 kWh £980 £106 £1,086 £17,589 16.2 yrs £4,128
6 kW 5522 kWh 4252 kWh 1270 kWh £1,176 £127 £1,303 £19,217 14.7 yrs £6,844
7 kW 6442 kWh 4960 kWh 1482 kWh £1,372 £148 £1,520 £20,844 13.7 yrs £9,559
8 kW 7362 kWh 5669 kWh 1693 kWh £1,568 £169 £1,737 £22,472 12.9 yrs £12,275

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 Liverpool

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.

Compare solar quotes before you sign

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 L15

Figures below are tailored to L15 — click through for full league tables.

Big-Roof Britain Rank #1460 of 2182
4.7 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #1466 of 2996
10.4 years (UK avg 10.8 years)
~£785 /yr • £8,139 upfront
Standing-Charge Drag Rank #2525 of 2996
32.9% (UK avg 26.6%) drag on savings
£258 fixed • ~£785 /yr value
Aspect Penalty View ranking →
East −20.0% West −21.5%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in L15

Monthly generation per kilowatt of solar panels

kWh 32 Jan 49 Feb 82 Mar 108 Apr 120 May 113 Jun 113 Jul 102 Aug 82 Sep 56 Oct 36 Nov 28 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 47.2% 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 36 kWh per month; the average month produces around 77 kWh. So a typical 4 kW home system would generate roughly 145 kWh in winter, or 307 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
27.66p/kWh
Daily Fixed Charge
70.76p/day
Local Sunshine
920kWh/kW
A 1 kW system generates ~920 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: 77% • Flats: 21% • Bungalows: 1% Based on 10,119 properties

Coverage

Liverpool (100%)

Areas Covered

Smithdown, Wavertree Village, Church, Wavertree Garden Suburb, Edge Hill, Arundel, Childwall, Greenbank Park + 1 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

L7 (Liverpool)
≈1.8 km away
Local sunshine: ~934 kWh/kWp · +2% vs L15
L13 (Liverpool)
≈2.0 km away
Local sunshine: ~934 kWh/kWp · +2% vs L15
L18 (Liverpool)
≈2.1 km away
Local sunshine: ~920 kWh/kWp · +0% vs L15
L17 (Liverpool)
≈2.3 km away
Local sunshine: ~920 kWh/kWp · -0% vs L15
L16 (Liverpool)
≈2.5 km away
Local sunshine: ~921 kWh/kWp · +0% vs L15
L8 (Liverpool)
≈2.6 km away
Local sunshine: ~920 kWh/kWp · -0% vs L15

Similar sunshine across the UK

DH98 (Gateshead)
~920 kWh/kWp · +0% vs L15
NE82 (Gateshead)
~920 kWh/kWp · +0% vs L15
CA95 (Cumberland)
~920 kWh/kWp · +0% vs L15