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Solar panel cost in Oadby and Wigston (LE18)

See realistic solar installation costs, savings and payback for LE18 (Oadby and Wigston) in under a minute using official UK data. Start with the calculator, then get a no-obligation quote from an MCS-certified installer. You can also ask the SolarByPostcode assistant to sanity-check your roof, bills and plans.

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
10.5 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£777
What you save every year
Profit Over 25 Years
£11,280
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: The official cost per kW is lower above 4 kW, so a 5–6 kW system can pay back a little faster than a 3–4 kW system on otherwise identical assumptions.
  • 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

Panel costs: Uses March 2026 TIC mean installation costs: £1,827/kW up to 4 kW and £1,628/kW above 4 kW.

Other costs: Battery prices are modelled at £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 25.10p/kWh with a 53.60p/day standing charge. Your postcode’s south-facing sunshine yield is 969 kWh/kW — 0 above 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 969 kWh per year on a south-facing roof. We value self-used electricity at 25.1p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.1p/kWh
Standing charge
53.6p/day
Sunshine yield (south)
969 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: £777, Upfront: £8,139, Break-even: 10.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1937 kWh 775 kWh 1162 kWh £194 £116 £311 £3,256 10.5 yrs £2,958
3 kW 2906 kWh 1162 kWh 1743 kWh £292 £174 £466 £4,883 10.5 yrs £4,438
4 kW 3874 kWh 1550 kWh 2324 kWh £389 £232 £621 £6,511 10.5 yrs £5,917
5 kW 4843 kWh 1937 kWh 2906 kWh £486 £291 £777 £8,139 10.5 yrs £7,396
6 kW 5811 kWh 2324 kWh 3487 kWh £583 £349 £932 £9,767 10.5 yrs £8,875
7 kW 6780 kWh 2712 kWh 4068 kWh £681 £407 £1,087 £11,394 10.5 yrs £10,355
8 kW 7748 kWh 3099 kWh 4649 kWh £778 £465 £1,243 £13,022 10.5 yrs £11,834

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £923, Upfront: £10,239, Break-even: 11.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1937 kWh 1162 kWh 775 kWh £292 £77 £369 £5,356 14.5 yrs £2,028
3 kW 2906 kWh 1743 kWh 1162 kWh £438 £116 £554 £6,983 12.6 yrs £4,093
4 kW 3874 kWh 2324 kWh 1550 kWh £583 £155 £738 £8,611 11.7 yrs £6,157
5 kW 4843 kWh 2906 kWh 1937 kWh £729 £194 £923 £10,239 11.1 yrs £8,221
6 kW 5811 kWh 3487 kWh 2324 kWh £875 £232 £1,108 £11,867 10.7 yrs £10,285
7 kW 6780 kWh 4068 kWh 2712 kWh £1,021 £271 £1,292 £13,494 10.4 yrs £12,349
8 kW 7748 kWh 4649 kWh 3099 kWh £1,167 £310 £1,477 £15,122 10.2 yrs £14,414

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £996, Upfront: £11,639, Break-even: 11.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1937 kWh 1356 kWh 581 kWh £340 £58 £398 £6,756 17.0 yrs £1,213
3 kW 2906 kWh 2034 kWh 872 kWh £511 £87 £598 £8,383 14.0 yrs £3,570
4 kW 3874 kWh 2712 kWh 1162 kWh £681 £116 £797 £10,011 12.6 yrs £5,927
5 kW 4843 kWh 3390 kWh 1453 kWh £851 £145 £996 £11,639 11.7 yrs £8,283
6 kW 5811 kWh 4068 kWh 1743 kWh £1,021 £174 £1,195 £13,267 11.1 yrs £10,640
7 kW 6780 kWh 4746 kWh 2034 kWh £1,191 £203 £1,395 £14,894 10.7 yrs £12,997
8 kW 7748 kWh 5424 kWh 2324 kWh £1,361 £232 £1,594 £16,522 10.4 yrs £15,354

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £1,018, Upfront: £13,389, 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 1937 kWh 1414 kWh 523 kWh £355 £52 £407 £8,506 20.9 yrs £-361
3 kW 2906 kWh 2121 kWh 784 kWh £532 £78 £611 £10,133 16.6 yrs £2,083
4 kW 3874 kWh 2828 kWh 1046 kWh £710 £105 £814 £11,761 14.4 yrs £4,528
5 kW 4843 kWh 3535 kWh 1307 kWh £887 £131 £1,018 £13,389 13.2 yrs £6,972
6 kW 5811 kWh 4242 kWh 1569 kWh £1,065 £157 £1,222 £15,017 12.3 yrs £9,417
7 kW 6780 kWh 4949 kWh 1830 kWh £1,242 £183 £1,425 £16,644 11.7 yrs £11,861
8 kW 7748 kWh 5656 kWh 2092 kWh £1,420 £209 £1,629 £18,272 11.2 yrs £14,305

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £1,033, Upfront: £15,139, Break-even: 14.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1937 kWh 1453 kWh 484 kWh £365 £48 £413 £10,256 24.8 yrs £-1,994
3 kW 2906 kWh 2179 kWh 726 kWh £547 £73 £620 £11,883 19.2 yrs £509
4 kW 3874 kWh 2906 kWh 969 kWh £729 £97 £826 £13,511 16.4 yrs £3,012
5 kW 4843 kWh 3632 kWh 1211 kWh £912 £121 £1,033 £15,139 14.7 yrs £5,515
6 kW 5811 kWh 4358 kWh 1453 kWh £1,094 £145 £1,239 £16,767 13.5 yrs £8,018
7 kW 6780 kWh 5085 kWh 1695 kWh £1,276 £169 £1,446 £18,394 12.7 yrs £10,521
8 kW 7748 kWh 5811 kWh 1937 kWh £1,459 £194 £1,652 £20,022 12.1 yrs £13,023

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £1,047, Upfront: £17,589, 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 1937 kWh 1492 kWh 446 kWh £374 £45 £419 £12,706 30.3 yrs £-4,327
3 kW 2906 kWh 2237 kWh 668 kWh £562 £67 £628 £14,333 22.8 yrs £-1,766
4 kW 3874 kWh 2983 kWh 891 kWh £749 £89 £838 £15,961 19.1 yrs £796
5 kW 4843 kWh 3729 kWh 1114 kWh £936 £111 £1,047 £17,589 16.8 yrs £3,357
6 kW 5811 kWh 4475 kWh 1337 kWh £1,123 £134 £1,257 £19,217 15.3 yrs £5,919
7 kW 6780 kWh 5220 kWh 1559 kWh £1,310 £156 £1,466 £20,844 14.2 yrs £8,480
8 kW 7748 kWh 5966 kWh 1782 kWh £1,497 £178 £1,676 £22,472 13.4 yrs £11,041

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, 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.

Before you request quotes in Oadby and Wigston

Use the numbers above to sanity-check installer quotes. The main things to compare are system size, battery assumptions, payback claims, MCS certification, DNO paperwork and export assumptions.

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Understand DNO, G98 and G99 export limits

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Insights for LE18

Figures below are tailored to LE18 — click through for full league tables.

Big-Roof Britain Rank #1338 of 2182
4.8 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #1552 of 2996
10.5 years (UK avg 10.8 years)
~£777 /yr • £8,139 upfront
Standing-Charge Drag Rank #1445 of 2996
25.2% (UK avg 26.6%) drag on savings
£196 fixed • ~£777 /yr value
Aspect Penalty View ranking →
East −21.5% West −19.8%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in LE18

Monthly generation per kilowatt of solar panels

kWh 36 Jan 51 Feb 82 Mar 110 Apr 118 May 115 Jun 118 Jul 107 Aug 91 Sep 64 Oct 44 Nov 33 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 49.5% of an average month (Dec–Feb)

Best / worst month: Jul / Dec

These figures show output per kilowatt (kW) of panels installed. In winter, a 1 kW system here produces about 40 kWh per month; the average month produces around 81 kWh. So a typical 4 kW home system would generate roughly 160 kWh in winter, or 323 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.10p/kWh
Daily Fixed Charge
53.60p/day
Local Sunshine
969kWh/kW
A 1 kW system generates ~969 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: 71% • Flats: 16% • Bungalows: 12% Based on 8,805 properties

Coverage

Oadby and Wigston (99%)|Blaby (1%)

Areas Covered

Wigston All Saints, South Wigston, Wigston Meadowcourt, Wigston Fields, Wigston St Wolstan's, Countesthorpe, Glen Parva

Data Sources & Assumptions

Solar yield: PVGIS (EU Joint Research Centre), January 2025 data

Electricity rates: Ofgem price cap, Q3 2026

Installation costs: DESNZ/MCS data, March 2026 (TIC)

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

LE8 (Blaby)
≈1.7 km away
Local sunshine: ~986 kWh/kWp · +2% vs LE18
LE2 (Leicester)
≈3.1 km away
Local sunshine: ~952 kWh/kWp · -2% vs LE18
LE21 (Leicester)
≈5.5 km away
Local sunshine: ~952 kWh/kWp · -2% vs LE18
LE1 (Leicester)
≈5.6 km away
Local sunshine: ~952 kWh/kWp · -2% vs LE18
LE5 (Leicester)
≈5.8 km away
Local sunshine: ~959 kWh/kWp · -1% vs LE18
LE87 (Leicester)
≈6.0 km away
Local sunshine: ~966 kWh/kWp · -0% vs LE18

Similar sunshine across the UK

HU10 (East Riding of Yorkshire)
~968 kWh/kWp · -0% vs LE18
SA99 (Swansea)
~968 kWh/kWp · -0% vs LE18
HU7 (Kingston upon Hull, City of)
~968 kWh/kWp · -0% vs LE18