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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in B62 (Dudley)

See if solar pays off for you in Dudley — 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
13.3 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£763
What you save every year
Profit Over 25 Years
£8,912
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 Midlands, the current unit rate is 25.64p/kWh with a 53.00p/day standing charge. Your postcode’s south-facing sunshine yield is 939 kWh/kW — 3 below the regional median (942).

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 939 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
53.0p/day
Sunshine yield (south)
939 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: £763, Upfront: £10,173, Break-even: 13.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1878 kWh 751 kWh 1127 kWh £193 £113 £305 £4,069 13.3 yrs £2,038
3 kW 2818 kWh 1127 kWh 1691 kWh £289 £169 £458 £6,104 13.3 yrs £3,057
4 kW 3757 kWh 1503 kWh 2254 kWh £385 £225 £611 £8,138 13.3 yrs £4,076
5 kW 4696 kWh 1878 kWh 2818 kWh £482 £282 £763 £10,173 13.3 yrs £5,095
6 kW 5635 kWh 2254 kWh 3381 kWh £578 £338 £916 £12,207 13.3 yrs £6,114
7 kW 6574 kWh 2630 kWh 3945 kWh £674 £394 £1,069 £14,242 13.3 yrs £7,133
8 kW 7514 kWh 3005 kWh 4508 kWh £771 £451 £1,221 £16,276 13.3 yrs £8,152

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: £910, Upfront: £12,273, Break-even: 13.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1878 kWh 1127 kWh 751 kWh £289 £75 £364 £6,169 16.9 yrs £1,113
3 kW 2818 kWh 1691 kWh 1127 kWh £433 £113 £546 £8,204 15.0 yrs £2,720
4 kW 3757 kWh 2254 kWh 1503 kWh £578 £150 £728 £10,238 14.1 yrs £4,326
5 kW 4696 kWh 2818 kWh 1878 kWh £722 £188 £910 £12,273 13.5 yrs £5,933
6 kW 5635 kWh 3381 kWh 2254 kWh £867 £225 £1,092 £14,307 13.1 yrs £7,539
7 kW 6574 kWh 3945 kWh 2630 kWh £1,011 £263 £1,274 £16,342 12.8 yrs £9,146
8 kW 7514 kWh 4508 kWh 3005 kWh £1,156 £301 £1,456 £18,376 12.6 yrs £10,753

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: £984, Upfront: £13,673, 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 1878 kWh 1315 kWh 564 kWh £337 £56 £393 £7,569 19.2 yrs £301
3 kW 2818 kWh 1972 kWh 845 kWh £506 £85 £590 £9,604 16.3 yrs £2,201
4 kW 3757 kWh 2630 kWh 1127 kWh £674 £113 £787 £11,638 14.8 yrs £4,101
5 kW 4696 kWh 3287 kWh 1409 kWh £843 £141 £984 £13,673 13.9 yrs £6,002
6 kW 5635 kWh 3945 kWh 1691 kWh £1,011 £169 £1,180 £15,707 13.3 yrs £7,902
7 kW 6574 kWh 4602 kWh 1972 kWh £1,180 £197 £1,377 £17,742 12.9 yrs £9,803
8 kW 7514 kWh 5260 kWh 2254 kWh £1,349 £225 £1,574 £19,776 12.6 yrs £11,703

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: £1,006, Upfront: £15,423, 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 1878 kWh 1371 kWh 507 kWh £352 £51 £402 £9,319 23.2 yrs £-1,273
3 kW 2818 kWh 2057 kWh 761 kWh £527 £76 £603 £11,354 18.8 yrs £715
4 kW 3757 kWh 2742 kWh 1014 kWh £703 £101 £805 £13,388 16.6 yrs £2,704
5 kW 4696 kWh 3428 kWh 1268 kWh £879 £127 £1,006 £15,423 15.3 yrs £4,692
6 kW 5635 kWh 4114 kWh 1522 kWh £1,055 £152 £1,207 £17,457 14.5 yrs £6,681
7 kW 6574 kWh 4799 kWh 1775 kWh £1,231 £178 £1,408 £19,492 13.8 yrs £8,669
8 kW 7514 kWh 5485 kWh 2029 kWh £1,406 £203 £1,609 £21,526 13.4 yrs £10,658

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: £1,020, Upfront: £17,173, Break-even: 16.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1878 kWh 1409 kWh 470 kWh £361 £47 £408 £11,069 27.1 yrs £-2,905
3 kW 2818 kWh 2113 kWh 704 kWh £542 £70 £612 £13,104 21.4 yrs £-858
4 kW 3757 kWh 2818 kWh 939 kWh £722 £94 £816 £15,138 18.5 yrs £1,189
5 kW 4696 kWh 3522 kWh 1174 kWh £903 £117 £1,020 £17,173 16.8 yrs £3,236
6 kW 5635 kWh 4226 kWh 1409 kWh £1,084 £141 £1,225 £19,207 15.7 yrs £5,284
7 kW 6574 kWh 4931 kWh 1644 kWh £1,264 £164 £1,429 £21,242 14.9 yrs £7,331
8 kW 7514 kWh 5635 kWh 1878 kWh £1,445 £188 £1,633 £23,276 14.3 yrs £9,378

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: £1,035, Upfront: £19,623, Break-even: 19.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1878 kWh 1446 kWh 432 kWh £371 £43 £414 £13,519 32.7 yrs £-5,238
3 kW 2818 kWh 2170 kWh 648 kWh £556 £65 £621 £15,554 25.0 yrs £-3,132
4 kW 3757 kWh 2893 kWh 864 kWh £742 £86 £828 £17,588 21.2 yrs £-1,026
5 kW 4696 kWh 3616 kWh 1080 kWh £927 £108 £1,035 £19,623 19.0 yrs £1,080
6 kW 5635 kWh 4339 kWh 1296 kWh £1,113 £130 £1,242 £21,657 17.4 yrs £3,186
7 kW 6574 kWh 5062 kWh 1512 kWh £1,298 £151 £1,449 £23,692 16.3 yrs £5,292
8 kW 7514 kWh 5785 kWh 1728 kWh £1,483 £173 £1,656 £25,726 15.5 yrs £7,398

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 B62

Figures below are tailored to B62 — click through for full league tables.

Big-Roof Britain Rank #1096 of 2182
5.0 kWp (UK avg 5.1 kWp)
~11 panels (≈430 W)
Solar Payback Index Rank #1831 of 2997
11.6 years (UK avg 11.3 years)
~£874 /yr • £10,173 upfront
Standing-Charge Drag Rank #1885 of 2997
22.1% (UK avg 21.7%) drag on savings
£193 fixed • ~£874 /yr value

Your Area at a Glance

Your Electricity Rate
25.64p/kWh
Daily Fixed Charge
53.00p/day
Local Sunshine
939kWh/kW
A 1 kW system generates ~939 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: 75% • Flats: 15% • Bungalows: 8% Based on 5,730 properties

Coverage

Dudley (89%)|Bromsgrove (9%)|Birmingham (1%)|Sandwell (1%)

Areas Covered

Halesowen North, Halesowen South, Belbroughton & Romsley, Belle Vale, Bartley Green, Cradley Heath and Old Hill, Hayley Green & Cradley South

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 Midlands

B65 (Sandwell)
≈1.6 km away
Local sunshine: ~933 kWh/kWp · -1% vs B62
B64 (Sandwell)
≈1.9 km away
Local sunshine: ~930 kWh/kWp · -1% vs B62
B63 (Dudley)
≈2.4 km away
Local sunshine: ~932 kWh/kWp · -1% vs B62
B68 (Sandwell)
≈2.9 km away
Local sunshine: ~933 kWh/kWp · -1% vs B62
B32 (Birmingham)
≈3.4 km away
Local sunshine: ~932 kWh/kWp · -1% vs B62
B69 (Sandwell)
≈4.2 km away
Local sunshine: ~927 kWh/kWp · -1% vs B62

Similar sunshine across the UK

CF46 (Merthyr Tydfil)
~939 kWh/kWp · -0% vs B62
S70 (Barnsley)
~939 kWh/kWp · -0% vs B62
SY13 (Shropshire)
~939 kWh/kWp · +0% vs B62