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Solar Panels in L68 (Sefton)

See if solar pays off for you in Sefton — price, savings and payback in under a minute (official UK data).

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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
12.6 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£806
What you save every year
Profit Over 25 Years
£9,984
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 944 kWh/kW — 14 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 944 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)
944 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: £806, Upfront: £10,173, Break-even: 12.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1887 kWh 755 kWh 1132 kWh £209 £113 £323 £4,069 12.6 yrs £2,381
3 kW 2831 kWh 1132 kWh 1699 kWh £314 £170 £484 £6,104 12.6 yrs £3,572
4 kW 3775 kWh 1510 kWh 2265 kWh £419 £226 £645 £8,138 12.6 yrs £4,762
5 kW 4718 kWh 1887 kWh 2831 kWh £523 £283 £806 £10,173 12.6 yrs £5,953
6 kW 5662 kWh 2265 kWh 3397 kWh £628 £340 £968 £12,207 12.6 yrs £7,143
7 kW 6606 kWh 2642 kWh 3963 kWh £732 £396 £1,129 £14,242 12.6 yrs £8,334
8 kW 7549 kWh 3020 kWh 4530 kWh £837 £453 £1,290 £16,276 12.6 yrs £9,524

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: £973, Upfront: £12,273, Break-even: 12.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1887 kWh 1132 kWh 755 kWh £314 £75 £389 £6,169 15.8 yrs £1,619
3 kW 2831 kWh 1699 kWh 1132 kWh £471 £113 £584 £8,204 14.0 yrs £3,478
4 kW 3775 kWh 2265 kWh 1510 kWh £628 £151 £779 £10,238 13.1 yrs £5,338
5 kW 4718 kWh 2831 kWh 1887 kWh £785 £189 £973 £12,273 12.6 yrs £7,197
6 kW 5662 kWh 3397 kWh 2265 kWh £942 £226 £1,168 £14,307 12.2 yrs £9,056
7 kW 6606 kWh 3963 kWh 2642 kWh £1,099 £264 £1,363 £16,342 12.0 yrs £10,916
8 kW 7549 kWh 4530 kWh 3020 kWh £1,256 £302 £1,558 £18,376 11.8 yrs £12,775

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: £1,057, Upfront: £13,673, Break-even: 12.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1887 kWh 1321 kWh 566 kWh £366 £57 £423 £7,569 17.9 yrs £888
3 kW 2831 kWh 1982 kWh 849 kWh £549 £85 £634 £9,604 15.1 yrs £3,082
4 kW 3775 kWh 2642 kWh 1132 kWh £732 £113 £846 £11,638 13.8 yrs £5,275
5 kW 4718 kWh 3303 kWh 1415 kWh £916 £142 £1,057 £13,673 12.9 yrs £7,469
6 kW 5662 kWh 3963 kWh 1699 kWh £1,099 £170 £1,269 £15,707 12.4 yrs £9,663
7 kW 6606 kWh 4624 kWh 1982 kWh £1,282 £198 £1,480 £17,742 12.0 yrs £11,857
8 kW 7549 kWh 5284 kWh 2265 kWh £1,465 £226 £1,691 £19,776 11.7 yrs £14,051

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: £1,082, Upfront: £15,423, 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 1887 kWh 1378 kWh 510 kWh £382 £51 £433 £9,319 21.5 yrs £-662
3 kW 2831 kWh 2067 kWh 764 kWh £573 £76 £649 £11,354 17.5 yrs £1,633
4 kW 3775 kWh 2755 kWh 1019 kWh £764 £102 £866 £13,388 15.5 yrs £3,927
5 kW 4718 kWh 3444 kWh 1274 kWh £955 £127 £1,082 £15,423 14.3 yrs £6,221
6 kW 5662 kWh 4133 kWh 1529 kWh £1,146 £153 £1,299 £17,457 13.4 yrs £8,515
7 kW 6606 kWh 4822 kWh 1784 kWh £1,337 £178 £1,515 £19,492 12.9 yrs £10,809
8 kW 7549 kWh 5511 kWh 2038 kWh £1,528 £204 £1,731 £21,526 12.4 yrs £13,103

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: £1,099, Upfront: £17,173, Break-even: 15.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1887 kWh 1415 kWh 472 kWh £392 £47 £440 £11,069 25.2 yrs £-2,278
3 kW 2831 kWh 2123 kWh 708 kWh £589 £71 £659 £13,104 19.9 yrs £83
4 kW 3775 kWh 2831 kWh 944 kWh £785 £94 £879 £15,138 17.2 yrs £2,444
5 kW 4718 kWh 3539 kWh 1180 kWh £981 £118 £1,099 £17,173 15.6 yrs £4,805
6 kW 5662 kWh 4246 kWh 1415 kWh £1,177 £142 £1,319 £19,207 14.6 yrs £7,166
7 kW 6606 kWh 4954 kWh 1651 kWh £1,373 £165 £1,538 £21,242 13.8 yrs £9,527
8 kW 7549 kWh 5662 kWh 1887 kWh £1,569 £189 £1,758 £23,276 13.2 yrs £11,888

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: £1,116, Upfront: £19,623, Break-even: 17.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1887 kWh 1453 kWh 434 kWh £403 £43 £446 £13,519 30.3 yrs £-4,594
3 kW 2831 kWh 2180 kWh 651 kWh £604 £65 £669 £15,554 23.2 yrs £-2,166
4 kW 3775 kWh 2906 kWh 868 kWh £806 £87 £892 £17,588 19.7 yrs £262
5 kW 4718 kWh 3633 kWh 1085 kWh £1,007 £109 £1,116 £19,623 17.6 yrs £2,690
6 kW 5662 kWh 4360 kWh 1302 kWh £1,209 £130 £1,339 £21,657 16.2 yrs £5,118
7 kW 6606 kWh 5086 kWh 1519 kWh £1,410 £152 £1,562 £23,692 15.2 yrs £7,546
8 kW 7549 kWh 5813 kWh 1736 kWh £1,611 £174 £1,785 £25,726 14.4 yrs £9,974

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 L68

Figures below are tailored to L68 — click through for full league tables.

Solar Payback Index Rank #1148 of 2997
10.9 years (UK avg 11.3 years)
~£932 /yr • £10,173 upfront
Standing-Charge Drag Rank #2452 of 2997
27.4% (UK avg 21.7%) drag on savings
£255 fixed • ~£932 /yr value

Your Area at a Glance

Your Electricity Rate
27.72p/kWh
Daily Fixed Charge
69.95p/day
Local Sunshine
944kWh/kW
A 1 kW system generates ~944 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

Sefton (70%)|Liverpool (30%)

Areas Covered

Netherton and Orrell, Derby, Molyneux, City Centre North, Walton

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

L9 (Liverpool)
≈0.5 km away
Local sunshine: ~944 kWh/kWp · -0% vs L68
L80 (Sefton)
≈0.9 km away
Local sunshine: ~944 kWh/kWp · -0% vs L68
L72 (Sefton)
≈1.2 km away
Local sunshine: ~953 kWh/kWp · +1% vs L68
L20 (Sefton)
≈2.3 km away
Local sunshine: ~943 kWh/kWp · -0% vs L68
L75 (Sefton)
≈2.3 km away
Local sunshine: ~936 kWh/kWp · -1% vs L68
L10 (Sefton)
≈2.3 km away
Local sunshine: ~931 kWh/kWp · -1% vs L68

Similar sunshine across the UK

YO22 (North Yorkshire)
~944 kWh/kWp · -0% vs L68
S97 (Rotherham)
~944 kWh/kWp · +0% vs L68
TS29 (County Durham)
~944 kWh/kWp · +0% vs L68