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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in HD3 (Kirklees)

See if solar pays off for you in Kirklees — 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
14.0 years
After this, it's pure profit
Upfront Cost
£8,138
What you pay to get started
Annual Benefit
£583
What you save every year
Profit Over 25 Years
£6,429
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 Yorkshire, the current unit rate is 25.33p/kWh with a 58.65p/day standing charge. Your postcode’s south-facing sunshine yield is 903 kWh/kW — 26 below the regional median (929).

Read the full story

A typical roof here lands around 4.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 903 kWh per year on a south-facing roof. We value self-used electricity at 25.3p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.3p/kWh
Standing charge
58.6p/day
Sunshine yield (south)
903 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: £728, Upfront: £10,173, 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 1806 kWh 722 kWh 1084 kWh £183 £108 £291 £4,069 14.0 yrs £1,758
3 kW 2709 kWh 1084 kWh 1625 kWh £274 £163 £437 £6,104 14.0 yrs £2,637
4 kW 3612 kWh 1445 kWh 2167 kWh £366 £217 £583 £8,138 14.0 yrs £3,516
5 kW 4515 kWh 1806 kWh 2709 kWh £457 £271 £728 £10,173 14.0 yrs £4,394
6 kW 5418 kWh 2167 kWh 3251 kWh £549 £325 £874 £12,207 14.0 yrs £5,273
7 kW 6321 kWh 2528 kWh 3793 kWh £640 £379 £1,020 £14,242 14.0 yrs £6,152
8 kW 7224 kWh 2890 kWh 4334 kWh £732 £433 £1,165 £16,276 14.0 yrs £7,031

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: £867, Upfront: £12,273, 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 1806 kWh 1084 kWh 722 kWh £274 £72 £347 £6,169 17.8 yrs £765
3 kW 2709 kWh 1625 kWh 1084 kWh £412 £108 £520 £8,204 15.8 yrs £2,198
4 kW 3612 kWh 2167 kWh 1445 kWh £549 £144 £693 £10,238 14.8 yrs £3,630
5 kW 4515 kWh 2709 kWh 1806 kWh £686 £181 £867 £12,273 14.2 yrs £5,063
6 kW 5418 kWh 3251 kWh 2167 kWh £823 £217 £1,040 £14,307 13.8 yrs £6,496
7 kW 6321 kWh 3793 kWh 2528 kWh £961 £253 £1,213 £16,342 13.5 yrs £7,928
8 kW 7224 kWh 4334 kWh 2890 kWh £1,098 £289 £1,387 £18,376 13.3 yrs £9,361

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: £936, Upfront: £13,673, Break-even: 14.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1806 kWh 1264 kWh 542 kWh £320 £54 £374 £7,569 20.2 yrs £-81
3 kW 2709 kWh 1896 kWh 813 kWh £480 £81 £562 £9,604 17.1 yrs £1,628
4 kW 3612 kWh 2528 kWh 1084 kWh £640 £108 £749 £11,638 15.5 yrs £3,338
5 kW 4515 kWh 3160 kWh 1354 kWh £801 £135 £936 £13,673 14.6 yrs £5,047
6 kW 5418 kWh 3793 kWh 1625 kWh £961 £163 £1,123 £15,707 14.0 yrs £6,757
7 kW 6321 kWh 4425 kWh 1896 kWh £1,121 £190 £1,310 £17,742 13.5 yrs £8,466
8 kW 7224 kWh 5057 kWh 2167 kWh £1,281 £217 £1,498 £19,776 13.2 yrs £10,176

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: £957, Upfront: £15,423, Break-even: 16.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1806 kWh 1318 kWh 488 kWh £334 £49 £383 £9,319 24.4 yrs £-1,665
3 kW 2709 kWh 1978 kWh 731 kWh £501 £73 £574 £11,354 19.8 yrs £128
4 kW 3612 kWh 2637 kWh 975 kWh £668 £98 £765 £13,388 17.5 yrs £1,920
5 kW 4515 kWh 3296 kWh 1219 kWh £835 £122 £957 £15,423 16.1 yrs £3,713
6 kW 5418 kWh 3955 kWh 1463 kWh £1,002 £146 £1,148 £17,457 15.2 yrs £5,505
7 kW 6321 kWh 4614 kWh 1707 kWh £1,169 £171 £1,339 £19,492 14.6 yrs £7,298
8 kW 7224 kWh 5273 kWh 1950 kWh £1,336 £195 £1,531 £21,526 14.1 yrs £9,090

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: £971, Upfront: £17,173, Break-even: 17.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1806 kWh 1354 kWh 451 kWh £343 £45 £388 £11,069 28.5 yrs £-3,304
3 kW 2709 kWh 2032 kWh 677 kWh £515 £68 £582 £13,104 22.5 yrs £-1,456
4 kW 3612 kWh 2709 kWh 903 kWh £686 £90 £776 £15,138 19.5 yrs £392
5 kW 4515 kWh 3386 kWh 1129 kWh £858 £113 £971 £17,173 17.7 yrs £2,239
6 kW 5418 kWh 4063 kWh 1354 kWh £1,029 £135 £1,165 £19,207 16.5 yrs £4,087
7 kW 6321 kWh 4741 kWh 1580 kWh £1,201 £158 £1,359 £21,242 15.6 yrs £5,935
8 kW 7224 kWh 5418 kWh 1806 kWh £1,372 £181 £1,553 £23,276 15.0 yrs £7,783

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: £984, Upfront: £19,623, Break-even: 19.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1806 kWh 1391 kWh 415 kWh £352 £42 £394 £13,519 34.3 yrs £-5,643
3 kW 2709 kWh 2086 kWh 623 kWh £528 £62 £591 £15,554 26.3 yrs £-3,740
4 kW 3612 kWh 2781 kWh 831 kWh £704 £83 £788 £17,588 22.3 yrs £-1,837
5 kW 4515 kWh 3477 kWh 1038 kWh £881 £104 £984 £19,623 19.9 yrs £66
6 kW 5418 kWh 4172 kWh 1246 kWh £1,057 £125 £1,181 £21,657 18.3 yrs £1,970
7 kW 6321 kWh 4867 kWh 1454 kWh £1,233 £145 £1,378 £23,692 17.2 yrs £3,873
8 kW 7224 kWh 5562 kWh 1662 kWh £1,409 £166 £1,575 £25,726 16.3 yrs £5,776

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 HD3

Figures below are tailored to HD3 — click through for full league tables.

Big-Roof Britain Rank #1744 of 2182
4.5 kWp (UK avg 5.1 kWp)
~9 panels (≈430 W)
Solar Payback Index Rank #2482 of 2997
12.2 years (UK avg 11.3 years)
~£666 /yr • £8,138 upfront
Standing-Charge Drag Rank #2718 of 2997
32.1% (UK avg 21.7%) drag on savings
£214 fixed • ~£666 /yr value

Your Area at a Glance

Your Electricity Rate
25.33p/kWh
Daily Fixed Charge
58.65p/day
Local Sunshine
903kWh/kW
A 1 kW system generates ~903 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
4.0kW
For houses & bungalows in this area

Local Property Data

Property Types

Houses: 73% • Flats: 20% • Bungalows: 6% Based on 8,442 properties

Coverage

Kirklees (97%)|Calderdale (3%)

Areas Covered

Lindley, Golcar, Greenhead, Colne Valley, Newsome, Greetland and Stainland, Elland, Ryburn

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 Yorkshire

HD1 (Kirklees)
≈3.1 km away
Local sunshine: ~908 kWh/kWp · +1% vs HD3
HD4 (Kirklees)
≈3.3 km away
Local sunshine: ~880 kWh/kWp · -3% vs HD3
HX5 (Calderdale)
≈3.4 km away
Local sunshine: ~901 kWh/kWp · -0% vs HD3
HD2 (Kirklees)
≈3.5 km away
Local sunshine: ~914 kWh/kWp · +1% vs HD3
HX4 (Calderdale)
≈4.1 km away
Local sunshine: ~888 kWh/kWp · -2% vs HD3
HD5 (Kirklees)
≈5.3 km away
Local sunshine: ~918 kWh/kWp · +2% vs HD3

Similar sunshine across the UK

WA3 (Warrington)
~903 kWh/kWp · -0% vs HD3
CW4 (Cheshire East)
~903 kWh/kWp · -0% vs HD3
TD3 (Scottish Borders)
~903 kWh/kWp · +0% vs HD3