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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in FY6 (Wyre)

See if solar pays off for you in Wyre — 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
12.3 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£991
What you save every year
Profit Over 25 Years
£12,563
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 North West, the current unit rate is 27.11p/kWh with a 51.16p/day standing charge. Your postcode’s south-facing sunshine yield is 980 kWh/kW — 110 above the regional median (870).

Read the full story

A typical roof here lands around 6.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 980 kWh per year on a south-facing roof. We value self-used electricity at 27.1p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
27.1p/kWh
Standing charge
51.2p/day
Sunshine yield (south)
980 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: £826, Upfront: £10,173, Break-even: 12.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1961 kWh 784 kWh 1176 kWh £213 £118 £330 £4,069 12.3 yrs £2,536
3 kW 2941 kWh 1176 kWh 1765 kWh £319 £176 £495 £6,104 12.3 yrs £3,805
4 kW 3922 kWh 1569 kWh 2353 kWh £425 £235 £661 £8,138 12.3 yrs £5,073
5 kW 4902 kWh 1961 kWh 2941 kWh £532 £294 £826 £10,173 12.3 yrs £6,341
6 kW 5882 kWh 2353 kWh 3529 kWh £638 £353 £991 £12,207 12.3 yrs £7,609
7 kW 6863 kWh 2745 kWh 4118 kWh £744 £412 £1,156 £14,242 12.3 yrs £8,877
8 kW 7843 kWh 3137 kWh 4706 kWh £850 £471 £1,321 £16,276 12.3 yrs £10,146

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: £993, Upfront: £12,273, Break-even: 12.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1961 kWh 1176 kWh 784 kWh £319 £78 £397 £6,169 15.5 yrs £1,778
3 kW 2941 kWh 1765 kWh 1176 kWh £478 £118 £596 £8,204 13.8 yrs £3,717
4 kW 3922 kWh 2353 kWh 1569 kWh £638 £157 £795 £10,238 12.9 yrs £5,657
5 kW 4902 kWh 2941 kWh 1961 kWh £797 £196 £993 £12,273 12.4 yrs £7,596
6 kW 5882 kWh 3529 kWh 2353 kWh £957 £235 £1,192 £14,307 12.0 yrs £9,535
7 kW 6863 kWh 4118 kWh 2745 kWh £1,116 £275 £1,391 £16,342 11.7 yrs £11,474
8 kW 7843 kWh 4706 kWh 3137 kWh £1,276 £314 £1,589 £18,376 11.6 yrs £13,413

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: £1,077, Upfront: £13,673, Break-even: 12.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1961 kWh 1373 kWh 588 kWh £372 £59 £431 £7,569 17.6 yrs £1,049
3 kW 2941 kWh 2059 kWh 882 kWh £558 £88 £646 £9,604 14.9 yrs £3,324
4 kW 3922 kWh 2745 kWh 1176 kWh £744 £118 £862 £11,638 13.5 yrs £5,599
5 kW 4902 kWh 3431 kWh 1471 kWh £930 £147 £1,077 £13,673 12.7 yrs £7,873
6 kW 5882 kWh 4118 kWh 1765 kWh £1,116 £176 £1,293 £15,707 12.2 yrs £10,148
7 kW 6863 kWh 4804 kWh 2059 kWh £1,302 £206 £1,508 £17,742 11.8 yrs £12,423
8 kW 7843 kWh 5490 kWh 2353 kWh £1,488 £235 £1,724 £19,776 11.5 yrs £14,697

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: £1,102, Upfront: £15,423, Break-even: 14.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1961 kWh 1431 kWh 529 kWh £388 £53 £441 £9,319 21.1 yrs £-499
3 kW 2941 kWh 2147 kWh 794 kWh £582 £79 £661 £11,354 17.2 yrs £1,876
4 kW 3922 kWh 2863 kWh 1059 kWh £776 £106 £882 £13,388 15.2 yrs £4,251
5 kW 4902 kWh 3578 kWh 1324 kWh £970 £132 £1,102 £15,423 14.0 yrs £6,626
6 kW 5882 kWh 4294 kWh 1588 kWh £1,164 £159 £1,323 £17,457 13.2 yrs £9,002
7 kW 6863 kWh 5010 kWh 1853 kWh £1,358 £185 £1,543 £19,492 12.6 yrs £11,377
8 kW 7843 kWh 5725 kWh 2118 kWh £1,552 £212 £1,764 £21,526 12.2 yrs £13,752

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: £1,119, Upfront: £17,173, 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 1961 kWh 1471 kWh 490 kWh £399 £49 £448 £11,069 24.7 yrs £-2,115
3 kW 2941 kWh 2206 kWh 735 kWh £598 £74 £672 £13,104 19.5 yrs £327
4 kW 3922 kWh 2941 kWh 980 kWh £797 £98 £895 £15,138 16.9 yrs £2,770
5 kW 4902 kWh 3676 kWh 1225 kWh £997 £123 £1,119 £17,173 15.3 yrs £5,212
6 kW 5882 kWh 4412 kWh 1471 kWh £1,196 £147 £1,343 £19,207 14.3 yrs £7,654
7 kW 6863 kWh 5147 kWh 1716 kWh £1,395 £172 £1,567 £21,242 13.6 yrs £10,097
8 kW 7843 kWh 5882 kWh 1961 kWh £1,595 £196 £1,791 £23,276 13.0 yrs £12,539

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: £1,136, Upfront: £19,623, Break-even: 17.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1961 kWh 1510 kWh 451 kWh £409 £45 £454 £13,519 29.8 yrs £-4,431
3 kW 2941 kWh 2265 kWh 676 kWh £614 £68 £682 £15,554 22.8 yrs £-1,922
4 kW 3922 kWh 3020 kWh 902 kWh £819 £90 £909 £17,588 19.4 yrs £588
5 kW 4902 kWh 3774 kWh 1127 kWh £1,023 £113 £1,136 £19,623 17.3 yrs £3,097
6 kW 5882 kWh 4529 kWh 1353 kWh £1,228 £135 £1,363 £21,657 15.9 yrs £5,607
7 kW 6863 kWh 5284 kWh 1578 kWh £1,433 £158 £1,590 £23,692 14.9 yrs £8,116
8 kW 7843 kWh 6039 kWh 1804 kWh £1,637 £180 £1,818 £25,726 14.2 yrs £10,626

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 FY6

Figures below are tailored to FY6 — click through for full league tables.

Big-Roof Britain Rank #342 of 2182
5.8 kWp (UK avg 5.1 kWp)
~12 panels (≈430 W)
Solar Payback Index Rank #789 of 2997
10.7 years (UK avg 11.3 years)
~£1,142 /yr • £12,207 upfront
Standing-Charge Drag Rank #614 of 2997
16.4% (UK avg 21.7%) drag on savings
£187 fixed • ~£1,142 /yr value

Your Area at a Glance

Your Electricity Rate
27.11p/kWh
Daily Fixed Charge
51.16p/day
Local Sunshine
980kWh/kW
A 1 kW system generates ~980 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
6.0kW
For houses & bungalows in this area

Local Property Data

Property Types

Houses: 60% • Flats: 13% • Bungalows: 26% Based on 8,116 properties

Coverage

Wyre (95%)|Fylde (4%)

Areas Covered

Hardhorn with High Cross, Preesall, Hambleton & Stalmine, Breck, Tithebarn, Carleton, Rural North Fylde, Staining + 2 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 North West

FY2 (Blackpool)
≈3.8 km away
Local sunshine: ~998 kWh/kWp · +2% vs FY6
FY3 (Blackpool)
≈4.1 km away
Local sunshine: ~999 kWh/kWp · +2% vs FY6
FY5 (Wyre)
≈4.1 km away
Local sunshine: ~998 kWh/kWp · +2% vs FY6
FY1 (Blackpool)
≈5.7 km away
Local sunshine: ~995 kWh/kWp · +1% vs FY6
FY4 (Blackpool)
≈7.2 km away
Local sunshine: ~986 kWh/kWp · +1% vs FY6
FY7 (Wyre)
≈8.1 km away
Local sunshine: ~986 kWh/kWp · +1% vs FY6

Similar sunshine across the UK

GL15 (Forest of Dean)
~980 kWh/kWp · -0% vs FY6
GL6 (Stroud)
~981 kWh/kWp · +0% vs FY6
HP5 (Buckinghamshire)
~981 kWh/kWp · +0% vs FY6