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Solar panel cost in North East Derbyshire (S45)

See realistic solar installation costs, savings and payback for S45 (North East Derbyshire) 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
10.9 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£749
What you save every year
Profit Over 25 Years
£10,589
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 934 kWh/kW — 34 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 934 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)
934 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: £749, Upfront: £8,139, Break-even: 10.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1868 kWh 747 kWh 1121 kWh £188 £112 £300 £3,256 10.9 yrs £2,737
3 kW 2802 kWh 1121 kWh 1681 kWh £281 £168 £449 £4,883 10.9 yrs £4,106
4 kW 3736 kWh 1494 kWh 2242 kWh £375 £224 £599 £6,511 10.9 yrs £5,474
5 kW 4670 kWh 1868 kWh 2802 kWh £469 £280 £749 £8,139 10.9 yrs £6,843
6 kW 5604 kWh 2242 kWh 3363 kWh £563 £336 £899 £9,767 10.9 yrs £8,212
7 kW 6538 kWh 2615 kWh 3923 kWh £656 £392 £1,049 £11,394 10.9 yrs £9,580
8 kW 7472 kWh 2989 kWh 4483 kWh £750 £448 £1,199 £13,022 10.9 yrs £10,949

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: £890, Upfront: £10,239, Break-even: 11.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1868 kWh 1121 kWh 747 kWh £281 £75 £356 £5,356 15.0 yrs £1,766
3 kW 2802 kWh 1681 kWh 1121 kWh £422 £112 £534 £6,983 13.1 yrs £3,698
4 kW 3736 kWh 2242 kWh 1494 kWh £563 £149 £712 £8,611 12.1 yrs £5,631
5 kW 4670 kWh 2802 kWh 1868 kWh £703 £187 £890 £10,239 11.5 yrs £7,564
6 kW 5604 kWh 3363 kWh 2242 kWh £844 £224 £1,068 £11,867 11.1 yrs £9,497
7 kW 6538 kWh 3923 kWh 2615 kWh £985 £262 £1,246 £13,494 10.8 yrs £11,429
8 kW 7472 kWh 4483 kWh 2989 kWh £1,125 £299 £1,424 £15,122 10.6 yrs £13,362

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: £961, Upfront: £11,639, Break-even: 12.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1868 kWh 1308 kWh 560 kWh £328 £56 £384 £6,756 17.6 yrs £930
3 kW 2802 kWh 1961 kWh 841 kWh £492 £84 £576 £8,383 14.5 yrs £3,145
4 kW 3736 kWh 2615 kWh 1121 kWh £656 £112 £769 £10,011 13.0 yrs £5,359
5 kW 4670 kWh 3269 kWh 1401 kWh £821 £140 £961 £11,639 12.1 yrs £7,574
6 kW 5604 kWh 3923 kWh 1681 kWh £985 £168 £1,153 £13,267 11.5 yrs £9,789
7 kW 6538 kWh 4577 kWh 1961 kWh £1,149 £196 £1,345 £14,894 11.1 yrs £12,004
8 kW 7472 kWh 5231 kWh 2242 kWh £1,313 £224 £1,537 £16,522 10.7 yrs £14,219

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: £982, Upfront: £13,389, 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 1868 kWh 1364 kWh 504 kWh £342 £50 £393 £8,506 21.7 yrs £-651
3 kW 2802 kWh 2046 kWh 757 kWh £513 £76 £589 £10,133 17.2 yrs £1,648
4 kW 3736 kWh 2727 kWh 1009 kWh £685 £101 £785 £11,761 15.0 yrs £3,948
5 kW 4670 kWh 3409 kWh 1261 kWh £856 £126 £982 £13,389 13.6 yrs £6,247
6 kW 5604 kWh 4091 kWh 1513 kWh £1,027 £151 £1,178 £15,017 12.7 yrs £8,547
7 kW 6538 kWh 4773 kWh 1765 kWh £1,198 £177 £1,375 £16,644 12.1 yrs £10,846
8 kW 7472 kWh 5455 kWh 2018 kWh £1,369 £202 £1,571 £18,272 11.6 yrs £13,146

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: £996, Upfront: £15,139, Break-even: 15.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1868 kWh 1401 kWh 467 kWh £352 £47 £398 £10,256 25.7 yrs £-2,288
3 kW 2802 kWh 2102 kWh 701 kWh £527 £70 £598 £11,883 19.9 yrs £68
4 kW 3736 kWh 2802 kWh 934 kWh £703 £93 £797 £13,511 17.0 yrs £2,424
5 kW 4670 kWh 3503 kWh 1168 kWh £879 £117 £996 £15,139 15.2 yrs £4,779
6 kW 5604 kWh 4203 kWh 1401 kWh £1,055 £140 £1,195 £16,767 14.0 yrs £7,135
7 kW 6538 kWh 4904 kWh 1635 kWh £1,231 £163 £1,394 £18,394 13.2 yrs £9,491
8 kW 7472 kWh 5604 kWh 1868 kWh £1,407 £187 £1,593 £20,022 12.6 yrs £11,847

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: £1,010, Upfront: £17,589, Break-even: 17.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1868 kWh 1438 kWh 430 kWh £361 £43 £404 £12,706 31.4 yrs £-4,625
3 kW 2802 kWh 2158 kWh 644 kWh £542 £64 £606 £14,333 23.7 yrs £-2,213
4 kW 3736 kWh 2877 kWh 859 kWh £722 £86 £808 £15,961 19.8 yrs £199
5 kW 4670 kWh 3596 kWh 1074 kWh £903 £107 £1,010 £17,589 17.4 yrs £2,611
6 kW 5604 kWh 4315 kWh 1289 kWh £1,083 £129 £1,212 £19,217 15.9 yrs £5,024
7 kW 6538 kWh 5034 kWh 1504 kWh £1,264 £150 £1,414 £20,844 14.7 yrs £7,436
8 kW 7472 kWh 5754 kWh 1719 kWh £1,444 £172 £1,616 £22,472 13.9 yrs £9,848

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 North East Derbyshire

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 S45

Figures below are tailored to S45 — click through for full league tables.

Big-Roof Britain Rank #1155 of 2182
4.9 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #1926 of 2996
10.9 years (UK avg 10.8 years)
~£749 /yr • £8,139 upfront
Standing-Charge Drag Rank #1640 of 2996
26.2% (UK avg 26.6%) drag on savings
£196 fixed • ~£749 /yr value
Aspect Penalty View ranking →
East −20.9% West −20.0%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in S45

Monthly generation per kilowatt of solar panels

kWh 34 Jan 48 Feb 82 Mar 105 Apr 117 May 111 Jun 115 Jul 106 Aug 86 Sep 59 Oct 39 Nov 29 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 47.5% of an average month (Dec–Feb)

Best / worst month: May / Dec

These figures show output per kilowatt (kW) of panels installed. In winter, a 1 kW system here produces about 37 kWh per month; the average month produces around 78 kWh. So a typical 4 kW home system would generate roughly 148 kWh in winter, or 311 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.10p/kWh
Daily Fixed Charge
53.60p/day
Local Sunshine
934kWh/kW
A 1 kW system generates ~934 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: 73% • Flats: 10% • Bungalows: 15% Based on 5,317 properties

Coverage

North East Derbyshire (95%)|Chesterfield (3%)|Bolsover (2%)

Areas Covered

Clay Cross North, Ashover, Pilsley & Morton, Clay Cross South, Spire, Ault Hucknall, Brampton & Walton

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

S42 (North East Derbyshire)
≈3.4 km away
Local sunshine: ~935 kWh/kWp · +0% vs S45
S49 (Chesterfield)
≈7.9 km away
Local sunshine: ~933 kWh/kWp · -0% vs S45
S40 (Chesterfield)
≈7.9 km away
Local sunshine: ~933 kWh/kWp · -0% vs S45
DE55 (Amber Valley)
≈8.2 km away
Local sunshine: ~943 kWh/kWp · +1% vs S45
S41 (Chesterfield)
≈9.3 km away
Local sunshine: ~935 kWh/kWp · +0% vs S45
S44 (Bolsover)
≈10.5 km away
Local sunshine: ~935 kWh/kWp · +0% vs S45

Similar sunshine across the UK

CF82 (Caerphilly)
~934 kWh/kWp · -0% vs S45
CH44 (Wirral)
~934 kWh/kWp · -0% vs S45
L44 (Wirral)
~934 kWh/kWp · -0% vs S45