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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in LN13 (East Lindsey)

See if solar pays off for you in East Lindsey — 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
12.1 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£1,008
What you save every year
Profit Over 25 Years
£12,984
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 East Midlands, the current unit rate is 25.55p/kWh with a 49.09p/day standing charge. Your postcode’s south-facing sunshine yield is 1035 kWh/kW — 67 above the regional median (968).

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 1035 kWh per year on a south-facing roof. We value self-used electricity at 25.6p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.6p/kWh
Standing charge
49.1p/day
Sunshine yield (south)
1035 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: £840, Upfront: £10,173, Break-even: 12.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2071 kWh 828 kWh 1242 kWh £212 £124 £336 £4,069 12.1 yrs £2,649
3 kW 3106 kWh 1242 kWh 1864 kWh £317 £186 £504 £6,104 12.1 yrs £3,973
4 kW 4142 kWh 1657 kWh 2485 kWh £423 £248 £672 £8,138 12.1 yrs £5,297
5 kW 5177 kWh 2071 kWh 3106 kWh £529 £311 £840 £10,173 12.1 yrs £6,622
6 kW 6212 kWh 2485 kWh 3727 kWh £635 £373 £1,008 £12,207 12.1 yrs £7,946
7 kW 7248 kWh 2899 kWh 4349 kWh £741 £435 £1,176 £14,242 12.1 yrs £9,270
8 kW 8283 kWh 3313 kWh 4970 kWh £847 £497 £1,344 £16,276 12.1 yrs £10,595

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: £1,001, Upfront: £12,273, Break-even: 12.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2071 kWh 1242 kWh 828 kWh £317 £83 £400 £6,169 15.4 yrs £1,837
3 kW 3106 kWh 1864 kWh 1242 kWh £476 £124 £600 £8,204 13.7 yrs £3,805
4 kW 4142 kWh 2485 kWh 1657 kWh £635 £166 £801 £10,238 12.8 yrs £5,773
5 kW 5177 kWh 3106 kWh 2071 kWh £794 £207 £1,001 £12,273 12.3 yrs £7,742
6 kW 6212 kWh 3727 kWh 2485 kWh £952 £248 £1,201 £14,307 11.9 yrs £9,710
7 kW 7248 kWh 4349 kWh 2899 kWh £1,111 £290 £1,401 £16,342 11.7 yrs £11,678
8 kW 8283 kWh 4970 kWh 3313 kWh £1,270 £331 £1,601 £18,376 11.5 yrs £13,647

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: £1,081, Upfront: £13,673, 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 2071 kWh 1450 kWh 621 kWh £370 £62 £432 £7,569 17.5 yrs £1,081
3 kW 3106 kWh 2174 kWh 932 kWh £556 £93 £649 £9,604 14.8 yrs £3,371
4 kW 4142 kWh 2899 kWh 1242 kWh £741 £124 £865 £11,638 13.5 yrs £5,661
5 kW 5177 kWh 3624 kWh 1553 kWh £926 £155 £1,081 £13,673 12.6 yrs £7,952
6 kW 6212 kWh 4349 kWh 1864 kWh £1,111 £186 £1,297 £15,707 12.1 yrs £10,242
7 kW 7248 kWh 5073 kWh 2174 kWh £1,296 £217 £1,514 £17,742 11.7 yrs £12,532
8 kW 8283 kWh 5798 kWh 2485 kWh £1,481 £248 £1,730 £19,776 11.4 yrs £14,823

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: £1,105, Upfront: £15,423, Break-even: 14.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2071 kWh 1512 kWh 559 kWh £386 £56 £442 £9,319 21.1 yrs £-476
3 kW 3106 kWh 2268 kWh 839 kWh £579 £84 £663 £11,354 17.1 yrs £1,911
4 kW 4142 kWh 3023 kWh 1118 kWh £772 £112 £884 £13,388 15.1 yrs £4,298
5 kW 5177 kWh 3779 kWh 1398 kWh £966 £140 £1,105 £15,423 14.0 yrs £6,685
6 kW 6212 kWh 4535 kWh 1677 kWh £1,159 £168 £1,326 £17,457 13.2 yrs £9,072
7 kW 7248 kWh 5291 kWh 1957 kWh £1,352 £196 £1,548 £19,492 12.6 yrs £11,459
8 kW 8283 kWh 6047 kWh 2236 kWh £1,545 £224 £1,769 £21,526 12.2 yrs £13,846

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: £1,121, Upfront: £17,173, Break-even: 15.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2071 kWh 1553 kWh 518 kWh £397 £52 £449 £11,069 24.7 yrs £-2,097
3 kW 3106 kWh 2330 kWh 777 kWh £595 £78 £673 £13,104 19.5 yrs £354
4 kW 4142 kWh 3106 kWh 1035 kWh £794 £104 £897 £15,138 16.9 yrs £2,805
5 kW 5177 kWh 3883 kWh 1294 kWh £992 £129 £1,121 £17,173 15.3 yrs £5,257
6 kW 6212 kWh 4659 kWh 1553 kWh £1,190 £155 £1,346 £19,207 14.3 yrs £7,708
7 kW 7248 kWh 5436 kWh 1812 kWh £1,389 £181 £1,570 £21,242 13.5 yrs £10,160
8 kW 8283 kWh 6212 kWh 2071 kWh £1,587 £207 £1,794 £23,276 13.0 yrs £12,611

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: £1,138, Upfront: £19,623, Break-even: 17.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 2071 kWh 1595 kWh 476 kWh £407 £48 £455 £13,519 29.7 yrs £-4,418
3 kW 3106 kWh 2392 kWh 714 kWh £611 £71 £683 £15,554 22.8 yrs £-1,903
4 kW 4142 kWh 3189 kWh 953 kWh £815 £95 £910 £17,588 19.3 yrs £613
5 kW 5177 kWh 3986 kWh 1191 kWh £1,018 £119 £1,138 £19,623 17.2 yrs £3,129
6 kW 6212 kWh 4784 kWh 1429 kWh £1,222 £143 £1,365 £21,657 15.9 yrs £5,645
7 kW 7248 kWh 5581 kWh 1667 kWh £1,426 £167 £1,593 £23,692 14.9 yrs £8,160
8 kW 8283 kWh 6378 kWh 1905 kWh £1,630 £191 £1,820 £25,726 14.1 yrs £10,676

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 LN13

Figures below are tailored to LN13 — click through for full league tables.

Big-Roof Britain Rank #229 of 2182
6.1 kWp (UK avg 5.1 kWp)
~13 panels (≈430 W)
Solar Payback Index Rank #669 of 2997
10.6 years (UK avg 11.3 years)
~£1,153 /yr • £12,207 upfront
Standing-Charge Drag Rank #497 of 2997
15.5% (UK avg 21.7%) drag on savings
£179 fixed • ~£1,153 /yr value

Your Area at a Glance

Your Electricity Rate
25.55p/kWh
Daily Fixed Charge
49.09p/day
Local Sunshine
1035kWh/kW
A 1 kW system generates ~1035 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: 59% • Flats: 4% • Bungalows: 36% Based on 2,672 properties

Coverage

East Lindsey (100%)

Areas Covered

Alford, Willoughby with Sloothby, Withern & Theddlethorpe, Legbourne, Chapel St Leonards, Sutton on Sea

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 East Midlands

LN12 (East Lindsey)
≈10.1 km away
Local sunshine: ~982 kWh/kWp · -5% vs LN13
PE23 (East Lindsey)
≈11.1 km away
Local sunshine: ~1,006 kWh/kWp · -3% vs LN13
PE24 (East Lindsey)
≈12.1 km away
Local sunshine: ~1,034 kWh/kWp · -0% vs LN13
PE25 (East Lindsey)
≈16.3 km away
Local sunshine: ~995 kWh/kWp · -4% vs LN13
LN9 (East Lindsey)
≈20.3 km away
Local sunshine: ~986 kWh/kWp · -5% vs LN13
PE22 (East Lindsey)
≈25.8 km away
Local sunshine: ~1,010 kWh/kWp · -2% vs LN13

Similar sunshine across the UK

SS15 (Basildon)
~1,035 kWh/kWp · +0% vs LN13
SO43 (New Forest)
~1,036 kWh/kWp · +0% vs LN13
CM3 (Chelmsford)
~1,035 kWh/kWp · -0% vs LN13