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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in WR2 (Worcester)

See if solar pays off for you in Worcester — 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
12.9 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£789
What you save every year
Profit Over 25 Years
£9,544
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 970 kWh/kW — 28 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 970 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)
970 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: £789, Upfront: £10,173, Break-even: 12.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1941 kWh 776 kWh 1164 kWh £199 £116 £315 £4,069 12.9 yrs £2,240
3 kW 2911 kWh 1164 kWh 1747 kWh £299 £175 £473 £6,104 12.9 yrs £3,360
4 kW 3881 kWh 1552 kWh 2329 kWh £398 £233 £631 £8,138 12.9 yrs £4,481
5 kW 4852 kWh 1941 kWh 2911 kWh £498 £291 £789 £10,173 12.9 yrs £5,601
6 kW 5822 kWh 2329 kWh 3493 kWh £597 £349 £946 £12,207 12.9 yrs £6,721
7 kW 6792 kWh 2717 kWh 4075 kWh £697 £408 £1,104 £14,242 12.9 yrs £7,841
8 kW 7762 kWh 3105 kWh 4657 kWh £796 £466 £1,262 £16,276 12.9 yrs £8,961

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: £940, Upfront: £12,273, 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 1941 kWh 1164 kWh 776 kWh £299 £78 £376 £6,169 16.4 yrs £1,354
3 kW 2911 kWh 1747 kWh 1164 kWh £448 £116 £564 £8,204 14.5 yrs £3,082
4 kW 3881 kWh 2329 kWh 1552 kWh £597 £155 £752 £10,238 13.6 yrs £4,809
5 kW 4852 kWh 2911 kWh 1941 kWh £746 £194 £940 £12,273 13.1 yrs £6,536
6 kW 5822 kWh 3493 kWh 2329 kWh £896 £233 £1,129 £14,307 12.7 yrs £8,263
7 kW 6792 kWh 4075 kWh 2717 kWh £1,045 £272 £1,317 £16,342 12.4 yrs £9,990
8 kW 7762 kWh 4657 kWh 3105 kWh £1,194 £310 £1,505 £18,376 12.2 yrs £11,718

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: £1,016, Upfront: £13,673, 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 1941 kWh 1358 kWh 582 kWh £348 £58 £407 £7,569 18.6 yrs £561
3 kW 2911 kWh 2038 kWh 873 kWh £522 £87 £610 £9,604 15.7 yrs £2,592
4 kW 3881 kWh 2717 kWh 1164 kWh £697 £116 £813 £11,638 14.3 yrs £4,623
5 kW 4852 kWh 3396 kWh 1455 kWh £871 £146 £1,016 £13,673 13.5 yrs £6,654
6 kW 5822 kWh 4075 kWh 1747 kWh £1,045 £175 £1,220 £15,707 12.9 yrs £8,684
7 kW 6792 kWh 4755 kWh 2038 kWh £1,219 £204 £1,423 £17,742 12.5 yrs £10,715
8 kW 7762 kWh 5434 kWh 2329 kWh £1,393 £233 £1,626 £19,776 12.2 yrs £12,746

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: £1,039, Upfront: £15,423, 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 1941 kWh 1417 kWh 524 kWh £363 £52 £416 £9,319 22.4 yrs £-1,006
3 kW 2911 kWh 2125 kWh 786 kWh £545 £79 £623 £11,354 18.2 yrs £1,115
4 kW 3881 kWh 2833 kWh 1048 kWh £726 £105 £831 £13,388 16.1 yrs £3,237
5 kW 4852 kWh 3542 kWh 1310 kWh £908 £131 £1,039 £15,423 14.8 yrs £5,359
6 kW 5822 kWh 4250 kWh 1572 kWh £1,090 £157 £1,247 £17,457 14.0 yrs £7,481
7 kW 6792 kWh 4958 kWh 1834 kWh £1,271 £183 £1,455 £19,492 13.4 yrs £9,602
8 kW 7762 kWh 5667 kWh 2096 kWh £1,453 £210 £1,663 £21,526 12.9 yrs £11,724

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: £1,054, Upfront: £17,173, 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 1941 kWh 1455 kWh 485 kWh £373 £49 £422 £11,069 26.2 yrs £-2,635
3 kW 2911 kWh 2183 kWh 728 kWh £560 £73 £633 £13,104 20.7 yrs £-453
4 kW 3881 kWh 2911 kWh 970 kWh £746 £97 £843 £15,138 17.9 yrs £1,730
5 kW 4852 kWh 3639 kWh 1213 kWh £933 £121 £1,054 £17,173 16.3 yrs £3,912
6 kW 5822 kWh 4366 kWh 1455 kWh £1,120 £146 £1,265 £19,207 15.2 yrs £6,095
7 kW 6792 kWh 5094 kWh 1698 kWh £1,306 £170 £1,476 £21,242 14.4 yrs £8,277
8 kW 7762 kWh 5822 kWh 1941 kWh £1,493 £194 £1,687 £23,276 13.8 yrs £10,460

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: £1,069, Upfront: £19,623, Break-even: 18.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1941 kWh 1494 kWh 446 kWh £383 £45 £428 £13,519 31.6 yrs £-4,964
3 kW 2911 kWh 2241 kWh 670 kWh £575 £67 £642 £15,554 24.2 yrs £-2,721
4 kW 3881 kWh 2989 kWh 893 kWh £766 £89 £856 £17,588 20.6 yrs £-477
5 kW 4852 kWh 3736 kWh 1116 kWh £958 £112 £1,069 £19,623 18.3 yrs £1,766
6 kW 5822 kWh 4483 kWh 1339 kWh £1,149 £134 £1,283 £21,657 16.9 yrs £4,009
7 kW 6792 kWh 5230 kWh 1562 kWh £1,341 £156 £1,497 £23,692 15.8 yrs £6,252
8 kW 7762 kWh 5977 kWh 1785 kWh £1,533 £179 £1,711 £25,726 15.0 yrs £8,495

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 WR2

Figures below are tailored to WR2 — click through for full league tables.

Big-Roof Britain Rank #1099 of 2182
5.0 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #1636 of 2997
11.3 years (UK avg 11.3 years)
~£902 /yr • £10,173 upfront
Standing-Charge Drag Rank #1694 of 2997
21.4% (UK avg 21.7%) drag on savings
£193 fixed • ~£902 /yr value

Your Area at a Glance

Your Electricity Rate
25.64p/kWh
Daily Fixed Charge
53.00p/day
Local Sunshine
970kWh/kW
A 1 kW system generates ~970 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: 74% • Flats: 16% • Bungalows: 9% Based on 9,185 properties

Coverage

Worcester (71%)|Malvern Hills (29%)

Areas Covered

Lower Wick & Pitmaston, Dines Green & Grove Farm, St John's, St Clement, St Nicholas, Powick & the Hanleys, Alfrick, Leigh & Rushwick + 4 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

WR99 (Worcester)
≈1.7 km away
Local sunshine: ~972 kWh/kWp · +0% vs WR2
WR78 (Worcester)
≈1.7 km away
Local sunshine: ~971 kWh/kWp · +0% vs WR2
WR1 (Worcester)
≈1.7 km away
Local sunshine: ~971 kWh/kWp · +0% vs WR2
WR5 (Worcester)
≈2.9 km away
Local sunshine: ~968 kWh/kWp · -0% vs WR2
WR3 (Worcester)
≈3.5 km away
Local sunshine: ~966 kWh/kWp · -0% vs WR2
WR4 (Worcester)
≈4.0 km away
Local sunshine: ~967 kWh/kWp · -0% vs WR2

Similar sunshine across the UK

HP17 (Buckinghamshire)
~971 kWh/kWp · +0% vs WR2
HP27 (Buckinghamshire)
~971 kWh/kWp · +0% vs WR2
CR8 (Croydon)
~971 kWh/kWp · +0% vs WR2