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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in LE19 (Blaby)

See if solar pays off for you in Blaby — 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
13.0 years
After this, it's pure profit
Upfront Cost
£10,173
What you pay to get started
Annual Benefit
£783
What you save every year
Profit Over 25 Years
£9,392
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 East Midlands, the current unit rate is 25.55p/kWh with a 49.09p/day standing charge. Your postcode’s south-facing sunshine yield is 965 kWh/kW — 3 below the regional median (968).

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 965 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
49.1p/day
Sunshine yield (south)
965 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: £783, Upfront: £10,173, Break-even: 13.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1930 kWh 772 kWh 1158 kWh £197 £116 £313 £4,069 13.0 yrs £2,192
3 kW 2895 kWh 1158 kWh 1737 kWh £296 £174 £470 £6,104 13.0 yrs £3,287
4 kW 3860 kWh 1544 kWh 2316 kWh £394 £232 £626 £8,138 13.0 yrs £4,383
5 kW 4825 kWh 1930 kWh 2895 kWh £493 £289 £783 £10,173 13.0 yrs £5,479
6 kW 5790 kWh 2316 kWh 3474 kWh £592 £347 £939 £12,207 13.0 yrs £6,575
7 kW 6755 kWh 2702 kWh 4053 kWh £690 £405 £1,096 £14,242 13.0 yrs £7,671
8 kW 7720 kWh 3088 kWh 4632 kWh £789 £463 £1,252 £16,276 13.0 yrs £8,767

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: £933, Upfront: £12,273, Break-even: 13.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1930 kWh 1158 kWh 772 kWh £296 £77 £373 £6,169 16.5 yrs £1,292
3 kW 2895 kWh 1737 kWh 1158 kWh £444 £116 £560 £8,204 14.7 yrs £2,988
4 kW 3860 kWh 2316 kWh 1544 kWh £592 £154 £746 £10,238 13.7 yrs £4,684
5 kW 4825 kWh 2895 kWh 1930 kWh £740 £193 £933 £12,273 13.2 yrs £6,380
6 kW 5790 kWh 3474 kWh 2316 kWh £888 £232 £1,119 £14,307 12.8 yrs £8,076
7 kW 6755 kWh 4053 kWh 2702 kWh £1,035 £270 £1,306 £16,342 12.5 yrs £9,772
8 kW 7720 kWh 4632 kWh 3088 kWh £1,183 £309 £1,492 £18,376 12.3 yrs £11,468

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: £1,008, Upfront: £13,673, Break-even: 13.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1930 kWh 1351 kWh 579 kWh £345 £58 £403 £7,569 18.8 yrs £492
3 kW 2895 kWh 2026 kWh 868 kWh £518 £87 £605 £9,604 15.9 yrs £2,488
4 kW 3860 kWh 2702 kWh 1158 kWh £690 £116 £806 £11,638 14.4 yrs £4,485
5 kW 4825 kWh 3377 kWh 1447 kWh £863 £145 £1,008 £13,673 13.6 yrs £6,481
6 kW 5790 kWh 4053 kWh 1737 kWh £1,035 £174 £1,209 £15,707 13.0 yrs £8,477
7 kW 6755 kWh 4728 kWh 2026 kWh £1,208 £203 £1,411 £17,742 12.6 yrs £10,473
8 kW 7720 kWh 5404 kWh 2316 kWh £1,381 £232 £1,612 £19,776 12.3 yrs £12,469

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: £1,030, Upfront: £15,423, Break-even: 15.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1930 kWh 1409 kWh 521 kWh £360 £52 £412 £9,319 22.6 yrs £-1,078
3 kW 2895 kWh 2113 kWh 782 kWh £540 £78 £618 £11,354 18.4 yrs £1,008
4 kW 3860 kWh 2818 kWh 1042 kWh £720 £104 £824 £13,388 16.2 yrs £3,095
5 kW 4825 kWh 3522 kWh 1303 kWh £900 £130 £1,030 £15,423 15.0 yrs £5,181
6 kW 5790 kWh 4227 kWh 1563 kWh £1,080 £156 £1,236 £17,457 14.1 yrs £7,267
7 kW 6755 kWh 4931 kWh 1824 kWh £1,260 £182 £1,442 £19,492 13.5 yrs £9,353
8 kW 7720 kWh 5635 kWh 2084 kWh £1,440 £208 £1,648 £21,526 13.1 yrs £11,439

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: £1,045, Upfront: £17,173, Break-even: 16.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1930 kWh 1447 kWh 482 kWh £370 £48 £418 £11,069 26.5 yrs £-2,708
3 kW 2895 kWh 2171 kWh 724 kWh £555 £72 £627 £13,104 20.9 yrs £-561
4 kW 3860 kWh 2895 kWh 965 kWh £740 £96 £836 £15,138 18.1 yrs £1,585
5 kW 4825 kWh 3619 kWh 1206 kWh £925 £121 £1,045 £17,173 16.4 yrs £3,731
6 kW 5790 kWh 4342 kWh 1447 kWh £1,109 £145 £1,254 £19,207 15.3 yrs £5,877
7 kW 6755 kWh 5066 kWh 1689 kWh £1,294 £169 £1,463 £21,242 14.5 yrs £8,023
8 kW 7720 kWh 5790 kWh 1930 kWh £1,479 £193 £1,672 £23,276 13.9 yrs £10,169

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: £1,060, Upfront: £19,623, Break-even: 18.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1930 kWh 1486 kWh 444 kWh £380 £44 £424 £13,519 31.9 yrs £-5,038
3 kW 2895 kWh 2229 kWh 666 kWh £570 £67 £636 £15,554 24.5 yrs £-2,831
4 kW 3860 kWh 2972 kWh 888 kWh £759 £89 £848 £17,588 20.7 yrs £-625
5 kW 4825 kWh 3715 kWh 1110 kWh £949 £111 £1,060 £19,623 18.5 yrs £1,581
6 kW 5790 kWh 4458 kWh 1332 kWh £1,139 £133 £1,272 £21,657 17.0 yrs £3,787
7 kW 6755 kWh 5201 kWh 1554 kWh £1,329 £155 £1,484 £23,692 16.0 yrs £5,993
8 kW 7720 kWh 5944 kWh 1776 kWh £1,519 £178 £1,696 £25,726 15.2 yrs £8,200

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 LE19

Figures below are tailored to LE19 — click through for full league tables.

Big-Roof Britain Rank #926 of 2182
5.1 kWp (UK avg 5.1 kWp)
~11 panels (≈430 W)
Solar Payback Index Rank #1699 of 2997
11.4 years (UK avg 11.3 years)
~£895 /yr • £10,173 upfront
Standing-Charge Drag Rank #1400 of 2997
20.0% (UK avg 21.7%) drag on savings
£179 fixed • ~£895 /yr value

Your Area at a Glance

Your Electricity Rate
25.55p/kWh
Daily Fixed Charge
49.09p/day
Local Sunshine
965kWh/kW
A 1 kW system generates ~965 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: 78% • Flats: 10% • Bungalows: 12% Based on 4,638 properties

Coverage

Blaby (95%)|Hinckley and Bosworth (5%)

Areas Covered

Narborough & Littlethorpe, Enderby, Thorpe Astley & St Mary's, Leicester Forest & Lubbesthorpe, Hinckley Castle, Braunstone Millfield, Braunstone Ravenhurst, Fosse Normanton + 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 East Midlands

LE95 (Blaby)
≈2.5 km away
Local sunshine: ~954 kWh/kWp · -1% vs LE19
LE9 (Blaby)
≈5.0 km away
Local sunshine: ~969 kWh/kWp · +0% vs LE19
LE3 (Leicester)
≈5.2 km away
Local sunshine: ~952 kWh/kWp · -1% vs LE19
LE2 (Leicester)
≈6.3 km away
Local sunshine: ~952 kWh/kWp · -1% vs LE19
LE8 (Blaby)
≈6.3 km away
Local sunshine: ~986 kWh/kWp · +2% vs LE19
LE18 (Oadby and Wigston)
≈6.6 km away
Local sunshine: ~969 kWh/kWp · +0% vs LE19

Similar sunshine across the UK

DN35 (North East Lincolnshire)
~965 kWh/kWp · -0% vs LE19
HR7 (Herefordshire, County of)
~965 kWh/kWp · -0% vs LE19
HR9 (Herefordshire, County of)
~965 kWh/kWp · -0% vs LE19