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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in NG21 (Newark and Sherwood)

See if solar pays off for you in Newark and Sherwood — 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
£781
What you save every year
Profit Over 25 Years
£9,355
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 963 kWh/kW — 5 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 963 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)
963 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: £781, 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 1926 kWh 771 kWh 1156 kWh £197 £116 £312 £4,069 13.0 yrs £2,180
3 kW 2889 kWh 1156 kWh 1734 kWh £295 £173 £469 £6,104 13.0 yrs £3,270
4 kW 3853 kWh 1541 kWh 2312 kWh £394 £231 £625 £8,138 13.0 yrs £4,360
5 kW 4816 kWh 1926 kWh 2889 kWh £492 £289 £781 £10,173 13.0 yrs £5,449
6 kW 5779 kWh 2312 kWh 3467 kWh £591 £347 £937 £12,207 13.0 yrs £6,539
7 kW 6742 kWh 2697 kWh 4045 kWh £689 £405 £1,094 £14,242 13.0 yrs £7,629
8 kW 7705 kWh 3082 kWh 4623 kWh £787 £462 £1,250 £16,276 13.0 yrs £8,719

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: £931, 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 1926 kWh 1156 kWh 771 kWh £295 £77 £372 £6,169 16.6 yrs £1,278
3 kW 2889 kWh 1734 kWh 1156 kWh £443 £116 £559 £8,204 14.7 yrs £2,967
4 kW 3853 kWh 2312 kWh 1541 kWh £591 £154 £745 £10,238 13.7 yrs £4,656
5 kW 4816 kWh 2889 kWh 1926 kWh £738 £193 £931 £12,273 13.2 yrs £6,345
6 kW 5779 kWh 3467 kWh 2312 kWh £886 £231 £1,117 £14,307 12.8 yrs £8,034
7 kW 6742 kWh 4045 kWh 2697 kWh £1,034 £270 £1,303 £16,342 12.5 yrs £9,723
8 kW 7705 kWh 4623 kWh 3082 kWh £1,181 £308 £1,489 £18,376 12.3 yrs £11,412

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: £1,006, 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 1926 kWh 1348 kWh 578 kWh £345 £58 £402 £7,569 18.8 yrs £477
3 kW 2889 kWh 2023 kWh 867 kWh £517 £87 £603 £9,604 15.9 yrs £2,465
4 kW 3853 kWh 2697 kWh 1156 kWh £689 £116 £805 £11,638 14.5 yrs £4,454
5 kW 4816 kWh 3371 kWh 1445 kWh £861 £144 £1,006 £13,673 13.6 yrs £6,442
6 kW 5779 kWh 4045 kWh 1734 kWh £1,034 £173 £1,207 £15,707 13.0 yrs £8,431
7 kW 6742 kWh 4719 kWh 2023 kWh £1,206 £202 £1,408 £17,742 12.6 yrs £10,419
8 kW 7705 kWh 5394 kWh 2312 kWh £1,378 £231 £1,609 £19,776 12.3 yrs £12,408

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: £1,028, 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 1926 kWh 1406 kWh 520 kWh £359 £52 £411 £9,319 22.7 yrs £-1,093
3 kW 2889 kWh 2109 kWh 780 kWh £539 £78 £617 £11,354 18.4 yrs £985
4 kW 3853 kWh 2812 kWh 1040 kWh £719 £104 £823 £13,388 16.3 yrs £3,063
5 kW 4816 kWh 3515 kWh 1300 kWh £898 £130 £1,028 £15,423 15.0 yrs £5,142
6 kW 5779 kWh 4219 kWh 1560 kWh £1,078 £156 £1,234 £17,457 14.1 yrs £7,220
7 kW 6742 kWh 4922 kWh 1820 kWh £1,257 £182 £1,439 £19,492 13.5 yrs £9,298
8 kW 7705 kWh 5625 kWh 2080 kWh £1,437 £208 £1,645 £21,526 13.1 yrs £11,377

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: £1,043, Upfront: £17,173, Break-even: 16.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1926 kWh 1445 kWh 482 kWh £369 £48 £417 £11,069 26.5 yrs £-2,723
3 kW 2889 kWh 2167 kWh 722 kWh £554 £72 £626 £13,104 20.9 yrs £-585
4 kW 3853 kWh 2889 kWh 963 kWh £738 £96 £835 £15,138 18.1 yrs £1,553
5 kW 4816 kWh 3612 kWh 1204 kWh £923 £120 £1,043 £17,173 16.5 yrs £3,691
6 kW 5779 kWh 4334 kWh 1445 kWh £1,107 £144 £1,252 £19,207 15.3 yrs £5,830
7 kW 6742 kWh 5056 kWh 1685 kWh £1,292 £169 £1,460 £21,242 14.5 yrs £7,968
8 kW 7705 kWh 5779 kWh 1926 kWh £1,476 £193 £1,669 £23,276 13.9 yrs £10,106

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: £1,058, 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 1926 kWh 1483 kWh 443 kWh £379 £44 £423 £13,519 31.9 yrs £-5,054
3 kW 2889 kWh 2225 kWh 665 kWh £568 £66 £635 £15,554 24.5 yrs £-2,856
4 kW 3853 kWh 2966 kWh 886 kWh £758 £89 £847 £17,588 20.8 yrs £-657
5 kW 4816 kWh 3708 kWh 1108 kWh £947 £111 £1,058 £19,623 18.5 yrs £1,541
6 kW 5779 kWh 4450 kWh 1329 kWh £1,137 £133 £1,270 £21,657 17.1 yrs £3,739
7 kW 6742 kWh 5191 kWh 1551 kWh £1,326 £155 £1,481 £23,692 16.0 yrs £5,937
8 kW 7705 kWh 5933 kWh 1772 kWh £1,516 £177 £1,693 £25,726 15.2 yrs £8,135

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 NG21

Figures below are tailored to NG21 — click through for full league tables.

Big-Roof Britain Rank #966 of 2182
5.1 kWp (UK avg 5.1 kWp)
~11 panels (≈430 W)
Solar Payback Index Rank #1708 of 2997
11.4 years (UK avg 11.3 years)
~£893 /yr • £10,173 upfront
Standing-Charge Drag Rank #1416 of 2997
20.1% (UK avg 21.7%) drag on savings
£179 fixed • ~£893 /yr value

Your Area at a Glance

Your Electricity Rate
25.55p/kWh
Daily Fixed Charge
49.09p/day
Local Sunshine
963kWh/kW
A 1 kW system generates ~963 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: 75% • Flats: 5% • Bungalows: 18% Based on 7,114 properties

Coverage

Newark and Sherwood (88%)|Mansfield (11%)|Gedling (1%)

Areas Covered

Edwinstowe & Clipstone, Rainworth South & Blidworth, Rainworth North & Rufford, Southwell, Mill Lane, Newstead Abbey, Central, Newlands Forest Town + 1 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

NG18 (Mansfield)
≈5.3 km away
Local sunshine: ~953 kWh/kWp · -1% vs NG21
NG70 (Mansfield)
≈6.0 km away
Local sunshine: ~954 kWh/kWp · -1% vs NG21
NG19 (Mansfield)
≈6.6 km away
Local sunshine: ~948 kWh/kWp · -2% vs NG21
NG17 (Ashfield)
≈9.9 km away
Local sunshine: ~937 kWh/kWp · -3% vs NG21
NG20 (Bolsover)
≈10.7 km away
Local sunshine: ~943 kWh/kWp · -2% vs NG21
NG22 (Newark and Sherwood)
≈11.2 km away
Local sunshine: ~973 kWh/kWp · +1% vs NG21

Similar sunshine across the UK

B80 (Stratford-on-Avon)
~963 kWh/kWp · +0% vs NG21
HU13 (East Riding of Yorkshire)
~964 kWh/kWp · +0% vs NG21
HU20 (East Riding of Yorkshire)
~964 kWh/kWp · +0% vs NG21