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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in DY10 (Wyre Forest)

See if solar pays off for you in Wyre Forest — 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
13.1 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£776
What you save every year
Profit Over 25 Years
£9,219
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 954 kWh/kW — 12 above 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 954 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)
954 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: £776, Upfront: £10,173, Break-even: 13.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1909 kWh 763 kWh 1145 kWh £196 £115 £310 £4,069 13.1 yrs £2,136
3 kW 2863 kWh 1145 kWh 1718 kWh £294 £172 £465 £6,104 13.1 yrs £3,204
4 kW 3817 kWh 1527 kWh 2290 kWh £391 £229 £621 £8,138 13.1 yrs £4,272
5 kW 4772 kWh 1909 kWh 2863 kWh £489 £286 £776 £10,173 13.1 yrs £5,341
6 kW 5726 kWh 2290 kWh 3435 kWh £587 £344 £931 £12,207 13.1 yrs £6,409
7 kW 6680 kWh 2672 kWh 4008 kWh £685 £401 £1,086 £14,242 13.1 yrs £7,477
8 kW 7634 kWh 3054 kWh 4581 kWh £783 £458 £1,241 £16,276 13.1 yrs £8,545

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: £925, Upfront: £12,273, 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 1909 kWh 1145 kWh 763 kWh £294 £76 £370 £6,169 16.7 yrs £1,230
3 kW 2863 kWh 1718 kWh 1145 kWh £440 £115 £555 £8,204 14.8 yrs £2,895
4 kW 3817 kWh 2290 kWh 1527 kWh £587 £153 £740 £10,238 13.8 yrs £4,560
5 kW 4772 kWh 2863 kWh 1909 kWh £734 £191 £925 £12,273 13.3 yrs £6,226
6 kW 5726 kWh 3435 kWh 2290 kWh £881 £229 £1,110 £14,307 12.9 yrs £7,891
7 kW 6680 kWh 4008 kWh 2672 kWh £1,028 £267 £1,295 £16,342 12.6 yrs £9,556
8 kW 7634 kWh 4581 kWh 3054 kWh £1,174 £305 £1,480 £18,376 12.4 yrs £11,221

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: £1,000, Upfront: £13,673, 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 1909 kWh 1336 kWh 573 kWh £343 £57 £400 £7,569 18.9 yrs £427
3 kW 2863 kWh 2004 kWh 859 kWh £514 £86 £600 £9,604 16.0 yrs £2,391
4 kW 3817 kWh 2672 kWh 1145 kWh £685 £115 £800 £11,638 14.6 yrs £4,355
5 kW 4772 kWh 3340 kWh 1431 kWh £856 £143 £1,000 £13,673 13.7 yrs £6,318
6 kW 5726 kWh 4008 kWh 1718 kWh £1,028 £172 £1,199 £15,707 13.1 yrs £8,282
7 kW 6680 kWh 4676 kWh 2004 kWh £1,199 £200 £1,399 £17,742 12.7 yrs £10,245
8 kW 7634 kWh 5344 kWh 2290 kWh £1,370 £229 £1,599 £19,776 12.4 yrs £12,209

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: £1,022, Upfront: £15,423, Break-even: 15.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1909 kWh 1393 kWh 515 kWh £357 £52 £409 £9,319 22.8 yrs £-1,144
3 kW 2863 kWh 2090 kWh 773 kWh £536 £77 £613 £11,354 18.5 yrs £910
4 kW 3817 kWh 2787 kWh 1031 kWh £714 £103 £818 £13,388 16.4 yrs £2,963
5 kW 4772 kWh 3483 kWh 1288 kWh £893 £129 £1,022 £15,423 15.1 yrs £5,016
6 kW 5726 kWh 4180 kWh 1546 kWh £1,072 £155 £1,226 £17,457 14.2 yrs £7,069
7 kW 6680 kWh 4876 kWh 1804 kWh £1,250 £180 £1,431 £19,492 13.6 yrs £9,122
8 kW 7634 kWh 5573 kWh 2061 kWh £1,429 £206 £1,635 £21,526 13.2 yrs £11,175

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: £1,037, Upfront: £17,173, Break-even: 16.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1909 kWh 1431 kWh 477 kWh £367 £48 £415 £11,069 26.7 yrs £-2,774
3 kW 2863 kWh 2147 kWh 716 kWh £551 £72 £622 £13,104 21.1 yrs £-661
4 kW 3817 kWh 2863 kWh 954 kWh £734 £95 £829 £15,138 18.3 yrs £1,452
5 kW 4772 kWh 3579 kWh 1193 kWh £918 £119 £1,037 £17,173 16.6 yrs £3,564
6 kW 5726 kWh 4294 kWh 1431 kWh £1,101 £143 £1,244 £19,207 15.4 yrs £5,677
7 kW 6680 kWh 5010 kWh 1670 kWh £1,285 £167 £1,452 £21,242 14.6 yrs £7,790
8 kW 7634 kWh 5726 kWh 1909 kWh £1,468 £191 £1,659 £23,276 14.0 yrs £9,903

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: £1,052, Upfront: £19,623, Break-even: 18.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1909 kWh 1470 kWh 439 kWh £377 £44 £421 £13,519 32.1 yrs £-5,105
3 kW 2863 kWh 2204 kWh 658 kWh £565 £66 £631 £15,554 24.6 yrs £-2,932
4 kW 3817 kWh 2939 kWh 878 kWh £754 £88 £841 £17,588 20.9 yrs £-760
5 kW 4772 kWh 3674 kWh 1097 kWh £942 £110 £1,052 £19,623 18.7 yrs £1,413
6 kW 5726 kWh 4409 kWh 1317 kWh £1,130 £132 £1,262 £21,657 17.2 yrs £3,585
7 kW 6680 kWh 5144 kWh 1536 kWh £1,319 £154 £1,472 £23,692 16.1 yrs £5,758
8 kW 7634 kWh 5878 kWh 1756 kWh £1,507 £176 £1,683 £25,726 15.3 yrs £7,931

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 DY10

Figures below are tailored to DY10 — click through for full league tables.

Big-Roof Britain Rank #1613 of 2182
4.6 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #1759 of 2997
11.5 years (UK avg 11.3 years)
~£888 /yr • £10,173 upfront
Standing-Charge Drag Rank #1779 of 2997
21.8% (UK avg 21.7%) drag on savings
£193 fixed • ~£888 /yr value

Your Area at a Glance

Your Electricity Rate
25.64p/kWh
Daily Fixed Charge
53.00p/day
Local Sunshine
954kWh/kW
A 1 kW system generates ~954 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: 72% • Flats: 20% • Bungalows: 7% Based on 10,163 properties

Coverage

Wyre Forest (98%)|Wychavon (2%)

Areas Covered

Wyre Forest Rural, Broadwaters, Aggborough & Spennells, Blakebrook & Habberley South, Offmore & Comberton, Franche & Habberley North, Foley Park & Hoobrook, Hartlebury + 3 more

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

DY11 (Wyre Forest)
≈1.7 km away
Local sunshine: ~954 kWh/kWp · +0% vs DY10
WV98 (Wyre Forest)
≈2.5 km away
Local sunshine: ~934 kWh/kWp · -2% vs DY10
DY12 (Wyre Forest)
≈5.8 km away
Local sunshine: ~949 kWh/kWp · -1% vs DY10
DY13 (Wyre Forest)
≈6.1 km away
Local sunshine: ~957 kWh/kWp · +0% vs DY10
DY7 (South Staffordshire)
≈7.7 km away
Local sunshine: ~925 kWh/kWp · -3% vs DY10
DY8 (Dudley)
≈9.6 km away
Local sunshine: ~924 kWh/kWp · -3% vs DY10

Similar sunshine across the UK

WF9 (Wakefield)
~954 kWh/kWp · +0% vs DY10
CH61 (Wirral)
~955 kWh/kWp · +0% vs DY10
NP25 (Monmouthshire)
~954 kWh/kWp · -0% vs DY10