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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in HD7 (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
14.1 years
After this, it's pure profit
Upfront Cost
£8,138
What you pay to get started
Annual Benefit
£575
What you save every year
Profit Over 25 Years
£6,243
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 891 kWh/kW — 38 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 891 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)
891 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: £719, Upfront: £10,173, Break-even: 14.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1783 kWh 713 kWh 1070 kWh £181 £107 £288 £4,069 14.1 yrs £1,683
3 kW 2674 kWh 1070 kWh 1605 kWh £271 £160 £431 £6,104 14.1 yrs £2,525
4 kW 3566 kWh 1426 kWh 2139 kWh £361 £214 £575 £8,138 14.1 yrs £3,367
5 kW 4457 kWh 1783 kWh 2674 kWh £452 £267 £719 £10,173 14.1 yrs £4,208
6 kW 5349 kWh 2139 kWh 3209 kWh £542 £321 £863 £12,207 14.1 yrs £5,050
7 kW 6240 kWh 2496 kWh 3744 kWh £632 £374 £1,007 £14,242 14.1 yrs £5,891
8 kW 7132 kWh 2853 kWh 4279 kWh £723 £428 £1,150 £16,276 14.1 yrs £6,733

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: £856, Upfront: £12,273, 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 1783 kWh 1070 kWh 713 kWh £271 £71 £342 £6,169 18.0 yrs £677
3 kW 2674 kWh 1605 kWh 1070 kWh £406 £107 £513 £8,204 16.0 yrs £2,065
4 kW 3566 kWh 2139 kWh 1426 kWh £542 £143 £685 £10,238 15.0 yrs £3,453
5 kW 4457 kWh 2674 kWh 1783 kWh £677 £178 £856 £12,273 14.3 yrs £4,841
6 kW 5349 kWh 3209 kWh 2139 kWh £813 £214 £1,027 £14,307 13.9 yrs £6,230
7 kW 6240 kWh 3744 kWh 2496 kWh £948 £250 £1,198 £16,342 13.6 yrs £7,618
8 kW 7132 kWh 4279 kWh 2853 kWh £1,084 £285 £1,369 £18,376 13.4 yrs £9,006

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: £924, Upfront: £13,673, Break-even: 14.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1783 kWh 1248 kWh 535 kWh £316 £53 £370 £7,569 20.5 yrs £-177
3 kW 2674 kWh 1872 kWh 802 kWh £474 £80 £554 £9,604 17.3 yrs £1,485
4 kW 3566 kWh 2496 kWh 1070 kWh £632 £107 £739 £11,638 15.7 yrs £3,146
5 kW 4457 kWh 3120 kWh 1337 kWh £790 £134 £924 £13,673 14.8 yrs £4,808
6 kW 5349 kWh 3744 kWh 1605 kWh £948 £160 £1,109 £15,707 14.2 yrs £6,469
7 kW 6240 kWh 4368 kWh 1872 kWh £1,106 £187 £1,294 £17,742 13.7 yrs £8,131
8 kW 7132 kWh 4992 kWh 2139 kWh £1,264 £214 £1,478 £19,776 13.4 yrs £9,793

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: £945, Upfront: £15,423, Break-even: 16.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1783 kWh 1302 kWh 481 kWh £330 £48 £378 £9,319 24.7 yrs £-1,763
3 kW 2674 kWh 1952 kWh 722 kWh £495 £72 £567 £11,354 20.0 yrs £-19
4 kW 3566 kWh 2603 kWh 963 kWh £659 £96 £756 £13,388 17.7 yrs £1,724
5 kW 4457 kWh 3254 kWh 1203 kWh £824 £120 £945 £15,423 16.3 yrs £3,468
6 kW 5349 kWh 3905 kWh 1444 kWh £989 £144 £1,133 £17,457 15.4 yrs £5,211
7 kW 6240 kWh 4555 kWh 1685 kWh £1,154 £168 £1,322 £19,492 14.7 yrs £6,955
8 kW 7132 kWh 5206 kWh 1926 kWh £1,319 £193 £1,511 £21,526 14.2 yrs £8,699

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: £958, Upfront: £17,173, Break-even: 17.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1783 kWh 1337 kWh 446 kWh £339 £45 £383 £11,069 28.9 yrs £-3,404
3 kW 2674 kWh 2006 kWh 669 kWh £508 £67 £575 £13,104 22.8 yrs £-1,605
4 kW 3566 kWh 2674 kWh 891 kWh £677 £89 £767 £15,138 19.7 yrs £193
5 kW 4457 kWh 3343 kWh 1114 kWh £847 £111 £958 £17,173 17.9 yrs £1,991
6 kW 5349 kWh 4011 kWh 1337 kWh £1,016 £134 £1,150 £19,207 16.7 yrs £3,789
7 kW 6240 kWh 4680 kWh 1560 kWh £1,185 £156 £1,341 £21,242 15.8 yrs £5,588
8 kW 7132 kWh 5349 kWh 1783 kWh £1,355 £178 £1,533 £23,276 15.2 yrs £7,386

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: £972, Upfront: £19,623, Break-even: 20.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1783 kWh 1373 kWh 410 kWh £348 £41 £389 £13,519 34.8 yrs £-5,744
3 kW 2674 kWh 2059 kWh 615 kWh £522 £62 £583 £15,554 26.7 yrs £-3,891
4 kW 3566 kWh 2746 kWh 820 kWh £695 £82 £777 £17,588 22.6 yrs £-2,038
5 kW 4457 kWh 3432 kWh 1025 kWh £869 £103 £972 £19,623 20.2 yrs £-186
6 kW 5349 kWh 4118 kWh 1230 kWh £1,043 £123 £1,166 £21,657 18.6 yrs £1,667
7 kW 6240 kWh 4805 kWh 1435 kWh £1,217 £144 £1,361 £23,692 17.4 yrs £3,520
8 kW 7132 kWh 5491 kWh 1640 kWh £1,391 £164 £1,555 £25,726 16.5 yrs £5,373

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 HD7

Figures below are tailored to HD7 — click through for full league tables.

Big-Roof Britain Rank #1445 of 2182
4.7 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #2602 of 2997
12.4 years (UK avg 11.3 years)
~£657 /yr • £8,138 upfront
Standing-Charge Drag Rank #2754 of 2997
32.6% (UK avg 21.7%) drag on savings
£214 fixed • ~£657 /yr value

Your Area at a Glance

Your Electricity Rate
25.33p/kWh
Daily Fixed Charge
58.65p/day
Local Sunshine
891kWh/kW
A 1 kW system generates ~891 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: 82% • Flats: 11% • Bungalows: 5% Based on 5,334 properties

Coverage

Kirklees (100%)

Areas Covered

Holme Valley South, Colne Valley, Holme Valley North, Golcar, Penistone West, Newsome

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

HD9 (Kirklees)
≈4.4 km away
Local sunshine: ~891 kWh/kWp · +0% vs HD7
HD4 (Kirklees)
≈4.4 km away
Local sunshine: ~880 kWh/kWp · -1% vs HD7
HD3 (Kirklees)
≈6.3 km away
Local sunshine: ~903 kWh/kWp · +1% vs HD7
HD1 (Kirklees)
≈6.8 km away
Local sunshine: ~908 kWh/kWp · +2% vs HD7
HD5 (Kirklees)
≈8.2 km away
Local sunshine: ~918 kWh/kWp · +3% vs HD7
HD2 (Kirklees)
≈8.7 km away
Local sunshine: ~914 kWh/kWp · +3% vs HD7

Similar sunshine across the UK

AB15 (Aberdeen City)
~892 kWh/kWp · +0% vs HD7
AB25 (Aberdeen City)
~892 kWh/kWp · +0% vs HD7
AB9 (Aberdeen City)
~892 kWh/kWp · +0% vs HD7