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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in BD19 (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
13.7 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£742
What you save every year
Profit Over 25 Years
£8,378
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 920 kWh/kW — 9 below the regional median (929).

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 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)
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: £742, Upfront: £10,173, Break-even: 13.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1840 kWh 736 kWh 1104 kWh £186 £110 £297 £4,069 13.7 yrs £1,867
3 kW 2760 kWh 1104 kWh 1656 kWh £280 £166 £445 £6,104 13.7 yrs £2,801
4 kW 3680 kWh 1472 kWh 2208 kWh £373 £221 £594 £8,138 13.7 yrs £3,734
5 kW 4600 kWh 1840 kWh 2760 kWh £466 £276 £742 £10,173 13.7 yrs £4,668
6 kW 5520 kWh 2208 kWh 3312 kWh £559 £331 £890 £12,207 13.7 yrs £5,602
7 kW 6440 kWh 2576 kWh 3864 kWh £652 £386 £1,039 £14,242 13.7 yrs £6,535
8 kW 7360 kWh 2944 kWh 4416 kWh £746 £442 £1,187 £16,276 13.7 yrs £7,469

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: £883, Upfront: £12,273, Break-even: 13.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1840 kWh 1104 kWh 736 kWh £280 £74 £353 £6,169 17.5 yrs £895
3 kW 2760 kWh 1656 kWh 1104 kWh £419 £110 £530 £8,204 15.5 yrs £2,393
4 kW 3680 kWh 2208 kWh 1472 kWh £559 £147 £706 £10,238 14.5 yrs £3,891
5 kW 4600 kWh 2760 kWh 1840 kWh £699 £184 £883 £12,273 13.9 yrs £5,389
6 kW 5520 kWh 3312 kWh 2208 kWh £839 £221 £1,060 £14,307 13.5 yrs £6,886
7 kW 6440 kWh 3864 kWh 2576 kWh £979 £258 £1,236 £16,342 13.2 yrs £8,384
8 kW 7360 kWh 4416 kWh 2944 kWh £1,119 £294 £1,413 £18,376 13.0 yrs £9,882

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: £954, Upfront: £13,673, 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 1840 kWh 1288 kWh 552 kWh £326 £55 £381 £7,569 19.8 yrs £60
3 kW 2760 kWh 1932 kWh 828 kWh £489 £83 £572 £9,604 16.8 yrs £1,839
4 kW 3680 kWh 2576 kWh 1104 kWh £652 £110 £763 £11,638 15.3 yrs £3,619
5 kW 4600 kWh 3220 kWh 1380 kWh £816 £138 £954 £13,673 14.3 yrs £5,399
6 kW 5520 kWh 3864 kWh 1656 kWh £979 £166 £1,144 £15,707 13.7 yrs £7,179
7 kW 6440 kWh 4508 kWh 1932 kWh £1,142 £193 £1,335 £17,742 13.3 yrs £8,959
8 kW 7360 kWh 5152 kWh 2208 kWh £1,305 £221 £1,526 £19,776 13.0 yrs £10,738

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: £975, Upfront: £15,423, Break-even: 15.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1840 kWh 1343 kWh 497 kWh £340 £50 £390 £9,319 23.9 yrs £-1,521
3 kW 2760 kWh 2015 kWh 745 kWh £510 £75 £585 £11,354 19.4 yrs £343
4 kW 3680 kWh 2686 kWh 994 kWh £680 £99 £780 £13,388 17.2 yrs £2,208
5 kW 4600 kWh 3358 kWh 1242 kWh £851 £124 £975 £15,423 15.8 yrs £4,072
6 kW 5520 kWh 4029 kWh 1490 kWh £1,021 £149 £1,170 £17,457 14.9 yrs £5,936
7 kW 6440 kWh 4701 kWh 1739 kWh £1,191 £174 £1,365 £19,492 14.3 yrs £7,801
8 kW 7360 kWh 5373 kWh 1987 kWh £1,361 £199 £1,560 £21,526 13.8 yrs £9,665

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: £989, Upfront: £17,173, Break-even: 17.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1840 kWh 1380 kWh 460 kWh £350 £46 £396 £11,069 28.0 yrs £-3,158
3 kW 2760 kWh 2070 kWh 690 kWh £524 £69 £593 £13,104 22.1 yrs £-1,238
4 kW 3680 kWh 2760 kWh 920 kWh £699 £92 £791 £15,138 19.1 yrs £683
5 kW 4600 kWh 3450 kWh 1150 kWh £874 £115 £989 £17,173 17.4 yrs £2,604
6 kW 5520 kWh 4140 kWh 1380 kWh £1,049 £138 £1,187 £19,207 16.2 yrs £4,525
7 kW 6440 kWh 4830 kWh 1610 kWh £1,223 £161 £1,384 £21,242 15.3 yrs £6,446
8 kW 7360 kWh 5520 kWh 1840 kWh £1,398 £184 £1,582 £23,276 14.7 yrs £8,367

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: £1,003, Upfront: £19,623, Break-even: 19.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1840 kWh 1417 kWh 423 kWh £359 £42 £401 £13,519 33.7 yrs £-5,496
3 kW 2760 kWh 2125 kWh 635 kWh £538 £63 £602 £15,554 25.8 yrs £-3,518
4 kW 3680 kWh 2833 kWh 846 kWh £718 £85 £802 £17,588 21.9 yrs £-1,541
5 kW 4600 kWh 3542 kWh 1058 kWh £897 £106 £1,003 £19,623 19.6 yrs £436
6 kW 5520 kWh 4250 kWh 1270 kWh £1,077 £127 £1,204 £21,657 18.0 yrs £2,413
7 kW 6440 kWh 4959 kWh 1481 kWh £1,256 £148 £1,404 £23,692 16.9 yrs £4,391
8 kW 7360 kWh 5667 kWh 1693 kWh £1,435 £169 £1,605 £25,726 16.0 yrs £6,368

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 BD19

Figures below are tailored to BD19 — click through for full league tables.

Big-Roof Britain Rank #1720 of 2182
4.5 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #2289 of 2997
12.0 years (UK avg 11.3 years)
~£848 /yr • £10,173 upfront
Standing-Charge Drag Rank #2253 of 2997
25.2% (UK avg 21.7%) drag on savings
£214 fixed • ~£848 /yr value

Your Area at a Glance

Your Electricity Rate
25.33p/kWh
Daily Fixed Charge
58.65p/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: 73% • Flats: 18% • Bungalows: 9% Based on 5,491 properties

Coverage

Kirklees (99%)|Calderdale (1%)

Areas Covered

Cleckheaton, Liversedge and Gomersal, Birstall and Birkenshaw, Hipperholme and Lightcliffe

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

WF15 (Kirklees)
≈2.2 km away
Local sunshine: ~922 kWh/kWp · +0% vs BD19
WF16 (Kirklees)
≈3.4 km away
Local sunshine: ~922 kWh/kWp · +0% vs BD19
BD11 (Kirklees)
≈3.6 km away
Local sunshine: ~915 kWh/kWp · -0% vs BD19
BD12 (Bradford)
≈4.1 km away
Local sunshine: ~908 kWh/kWp · -1% vs BD19
WF17 (Kirklees)
≈5.0 km away
Local sunshine: ~921 kWh/kWp · +0% vs BD19
WF14 (Kirklees)
≈5.1 km away
Local sunshine: ~927 kWh/kWp · +1% vs BD19

Similar sunshine across the UK

L19 (Liverpool)
~920 kWh/kWp · +0% vs BD19
NE88 (Gateshead)
~920 kWh/kWp · -0% vs BD19
NE92 (Gateshead)
~920 kWh/kWp · -0% vs BD19