Solar explained to clever people by people who are not trying to be clever

Solar Panels in LE14 (Melton)

See if solar pays off for you in Melton — 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
12.6 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£966
What you save every year
Profit Over 25 Years
£11,947
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

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 993 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)
993 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: £805, Upfront: £10,173, Break-even: 12.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1986 kWh 794 kWh 1191 kWh £203 £119 £322 £4,069 12.6 yrs £2,372
3 kW 2978 kWh 1191 kWh 1787 kWh £304 £179 £483 £6,104 12.6 yrs £3,558
4 kW 3971 kWh 1588 kWh 2383 kWh £406 £238 £644 £8,138 12.6 yrs £4,744
5 kW 4964 kWh 1986 kWh 2978 kWh £507 £298 £805 £10,173 12.6 yrs £5,930
6 kW 5957 kWh 2383 kWh 3574 kWh £609 £357 £966 £12,207 12.6 yrs £7,116
7 kW 6949 kWh 2780 kWh 4170 kWh £710 £417 £1,127 £14,242 12.6 yrs £8,302
8 kW 7942 kWh 3177 kWh 4765 kWh £812 £477 £1,288 £16,276 12.6 yrs £9,489

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: £960, Upfront: £12,273, Break-even: 12.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1986 kWh 1191 kWh 794 kWh £304 £79 £384 £6,169 16.1 yrs £1,507
3 kW 2978 kWh 1787 kWh 1191 kWh £457 £119 £576 £8,204 14.2 yrs £3,311
4 kW 3971 kWh 2383 kWh 1588 kWh £609 £159 £768 £10,238 13.3 yrs £5,114
5 kW 4964 kWh 2978 kWh 1986 kWh £761 £199 £960 £12,273 12.8 yrs £6,918
6 kW 5957 kWh 3574 kWh 2383 kWh £913 £238 £1,151 £14,307 12.4 yrs £8,721
7 kW 6949 kWh 4170 kWh 2780 kWh £1,065 £278 £1,343 £16,342 12.2 yrs £10,525
8 kW 7942 kWh 4765 kWh 3177 kWh £1,218 £318 £1,535 £18,376 12.0 yrs £12,329

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: £1,037, Upfront: £13,673, 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 1986 kWh 1390 kWh 596 kWh £355 £60 £415 £7,569 18.3 yrs £725
3 kW 2978 kWh 2085 kWh 894 kWh £533 £89 £622 £9,604 15.4 yrs £2,837
4 kW 3971 kWh 2780 kWh 1191 kWh £710 £119 £829 £11,638 14.0 yrs £4,949
5 kW 4964 kWh 3475 kWh 1489 kWh £888 £149 £1,037 £13,673 13.2 yrs £7,062
6 kW 5957 kWh 4170 kWh 1787 kWh £1,065 £179 £1,244 £15,707 12.6 yrs £9,174
7 kW 6949 kWh 4865 kWh 2085 kWh £1,243 £208 £1,451 £17,742 12.2 yrs £11,286
8 kW 7942 kWh 5560 kWh 2383 kWh £1,420 £238 £1,659 £19,776 11.9 yrs £13,399

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: £1,060, Upfront: £15,423, Break-even: 14.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1986 kWh 1449 kWh 536 kWh £370 £54 £424 £9,319 22.0 yrs £-840
3 kW 2978 kWh 2174 kWh 804 kWh £556 £80 £636 £11,354 17.9 yrs £1,365
4 kW 3971 kWh 2899 kWh 1072 kWh £741 £107 £848 £13,388 15.8 yrs £3,570
5 kW 4964 kWh 3624 kWh 1340 kWh £926 £134 £1,060 £15,423 14.6 yrs £5,775
6 kW 5957 kWh 4348 kWh 1608 kWh £1,111 £161 £1,272 £17,457 13.7 yrs £7,980
7 kW 6949 kWh 5073 kWh 1876 kWh £1,296 £188 £1,484 £19,492 13.1 yrs £10,185
8 kW 7942 kWh 5798 kWh 2144 kWh £1,481 £214 £1,696 £21,526 12.7 yrs £12,390

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: £1,075, Upfront: £17,173, Break-even: 16.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1986 kWh 1489 kWh 496 kWh £380 £50 £430 £11,069 25.7 yrs £-2,467
3 kW 2978 kWh 2234 kWh 745 kWh £571 £74 £645 £13,104 20.3 yrs £-200
4 kW 3971 kWh 2978 kWh 993 kWh £761 £99 £860 £15,138 17.6 yrs £2,067
5 kW 4964 kWh 3723 kWh 1241 kWh £951 £124 £1,075 £17,173 16.0 yrs £4,334
6 kW 5957 kWh 4468 kWh 1489 kWh £1,141 £149 £1,290 £19,207 14.9 yrs £6,600
7 kW 6949 kWh 5212 kWh 1737 kWh £1,332 £174 £1,505 £21,242 14.1 yrs £8,867
8 kW 7942 kWh 5957 kWh 1986 kWh £1,522 £199 £1,720 £23,276 13.5 yrs £11,134

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: £1,091, Upfront: £19,623, Break-even: 18.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1986 kWh 1529 kWh 457 kWh £391 £46 £436 £13,519 31.0 yrs £-4,793
3 kW 2978 kWh 2293 kWh 685 kWh £586 £69 £654 £15,554 23.8 yrs £-2,465
4 kW 3971 kWh 3058 kWh 913 kWh £781 £91 £873 £17,588 20.2 yrs £-136
5 kW 4964 kWh 3822 kWh 1142 kWh £977 £114 £1,091 £19,623 18.0 yrs £2,192
6 kW 5957 kWh 4587 kWh 1370 kWh £1,172 £137 £1,309 £21,657 16.5 yrs £4,521
7 kW 6949 kWh 5351 kWh 1598 kWh £1,367 £160 £1,527 £23,692 15.5 yrs £6,849
8 kW 7942 kWh 6116 kWh 1827 kWh £1,563 £183 £1,745 £25,726 14.7 yrs £9,178

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.

Your Area at a Glance

Your Electricity Rate
25.55p/kWh
Daily Fixed Charge
49.09p/day
Local Sunshine
993kWh/kW
A 1 kW system generates ~993 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: 83% • Flats: 2% • Bungalows: 14% Based on 5,173 properties

Coverage

Melton (95%)|Rushcliffe (4%)

Areas Covered

Long Clawson and Stathern, Asfordby, Old Dalby, Frisby-on-the-Wreake, Somerby, Wymondham, Waltham-on-the-Wolds, Melton Newport + 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.