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Solar panel cost in Rotherham (S66)

See realistic solar installation costs, savings and payback for S66 (Rotherham) 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
10.6 years
After this, it's pure profit
Upfront Cost
£8,139
What you pay to get started
Annual Benefit
£768
What you save every year
Profit Over 25 Years
£11,064
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 Yorkshire, the current unit rate is 25.31p/kWh with a 64.38p/day standing charge. Your postcode’s south-facing sunshine yield is 953 kWh/kW — 24 above the regional median (929).

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 953 kWh per year on a south-facing roof. We value self-used electricity at 25.3p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.3p/kWh
Standing charge
64.4p/day
Sunshine yield (south)
953 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: £768, Upfront: £8,139, Break-even: 10.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1906 kWh 762 kWh 1143 kWh £193 £114 £307 £3,256 10.6 yrs £2,889
3 kW 2858 kWh 1143 kWh 1715 kWh £289 £171 £461 £4,883 10.6 yrs £4,334
4 kW 3811 kWh 1524 kWh 2287 kWh £386 £229 £614 £6,511 10.6 yrs £5,779
5 kW 4764 kWh 1906 kWh 2858 kWh £482 £286 £768 £8,139 10.6 yrs £7,224
6 kW 5717 kWh 2287 kWh 3430 kWh £579 £343 £922 £9,767 10.6 yrs £8,668
7 kW 6669 kWh 2668 kWh 4002 kWh £675 £400 £1,075 £11,394 10.6 yrs £10,113
8 kW 7622 kWh 3049 kWh 4573 kWh £772 £457 £1,229 £13,022 10.6 yrs £11,558

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: £914, Upfront: £10,239, Break-even: 11.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1906 kWh 1143 kWh 762 kWh £289 £76 £366 £5,356 14.6 yrs £1,956
3 kW 2858 kWh 1715 kWh 1143 kWh £434 £114 £548 £6,983 12.7 yrs £3,985
4 kW 3811 kWh 2287 kWh 1524 kWh £579 £152 £731 £8,611 11.8 yrs £6,013
5 kW 4764 kWh 2858 kWh 1906 kWh £723 £191 £914 £10,239 11.2 yrs £8,041
6 kW 5717 kWh 3430 kWh 2287 kWh £868 £229 £1,097 £11,867 10.8 yrs £10,069
7 kW 6669 kWh 4002 kWh 2668 kWh £1,013 £267 £1,280 £13,494 10.5 yrs £12,097
8 kW 7622 kWh 4573 kWh 3049 kWh £1,158 £305 £1,462 £15,122 10.3 yrs £14,126

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: £987, Upfront: £11,639, Break-even: 11.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1906 kWh 1334 kWh 572 kWh £338 £57 £395 £6,756 17.1 yrs £1,140
3 kW 2858 kWh 2001 kWh 857 kWh £506 £86 £592 £8,383 14.2 yrs £3,460
4 kW 3811 kWh 2668 kWh 1143 kWh £675 £114 £790 £10,011 12.7 yrs £5,780
5 kW 4764 kWh 3335 kWh 1429 kWh £844 £143 £987 £11,639 11.8 yrs £8,100
6 kW 5717 kWh 4002 kWh 1715 kWh £1,013 £171 £1,184 £13,267 11.2 yrs £10,420
7 kW 6669 kWh 4669 kWh 2001 kWh £1,182 £200 £1,382 £14,894 10.8 yrs £12,740
8 kW 7622 kWh 5336 kWh 2287 kWh £1,350 £229 £1,579 £16,522 10.5 yrs £15,060

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: £1,009, Upfront: £13,389, Break-even: 13.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1906 kWh 1391 kWh 514 kWh £352 £51 £404 £8,506 21.1 yrs £-435
3 kW 2858 kWh 2087 kWh 772 kWh £528 £77 £605 £10,133 16.7 yrs £1,972
4 kW 3811 kWh 2782 kWh 1029 kWh £704 £103 £807 £11,761 14.6 yrs £4,380
5 kW 4764 kWh 3478 kWh 1286 kWh £880 £129 £1,009 £13,389 13.3 yrs £6,787
6 kW 5717 kWh 4173 kWh 1543 kWh £1,056 £154 £1,211 £15,017 12.4 yrs £9,195
7 kW 6669 kWh 4869 kWh 1801 kWh £1,232 £180 £1,412 £16,644 11.8 yrs £11,602
8 kW 7622 kWh 5564 kWh 2058 kWh £1,408 £206 £1,614 £18,272 11.3 yrs £14,010

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: £1,023, Upfront: £15,139, Break-even: 14.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1906 kWh 1429 kWh 476 kWh £362 £48 £409 £10,256 25.1 yrs £-2,068
3 kW 2858 kWh 2144 kWh 715 kWh £543 £71 £614 £11,883 19.4 yrs £397
4 kW 3811 kWh 2858 kWh 953 kWh £723 £95 £819 £13,511 16.5 yrs £2,863
5 kW 4764 kWh 3573 kWh 1191 kWh £904 £119 £1,023 £15,139 14.8 yrs £5,329
6 kW 5717 kWh 4287 kWh 1429 kWh £1,085 £143 £1,228 £16,767 13.7 yrs £7,795
7 kW 6669 kWh 5002 kWh 1667 kWh £1,266 £167 £1,433 £18,394 12.8 yrs £10,261
8 kW 7622 kWh 5717 kWh 1906 kWh £1,447 £191 £1,637 £20,022 12.2 yrs £12,727

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: £1,038, Upfront: £17,589, Break-even: 16.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1906 kWh 1467 kWh 438 kWh £371 £44 £415 £12,706 30.6 yrs £-4,402
3 kW 2858 kWh 2201 kWh 657 kWh £557 £66 £623 £14,333 23.0 yrs £-1,878
4 kW 3811 kWh 2935 kWh 877 kWh £743 £88 £830 £15,961 19.2 yrs £647
5 kW 4764 kWh 3668 kWh 1096 kWh £928 £110 £1,038 £17,589 16.9 yrs £3,171
6 kW 5717 kWh 4402 kWh 1315 kWh £1,114 £131 £1,246 £19,217 15.4 yrs £5,695
7 kW 6669 kWh 5135 kWh 1534 kWh £1,300 £153 £1,453 £20,844 14.3 yrs £8,219
8 kW 7622 kWh 5869 kWh 1753 kWh £1,485 £175 £1,661 £22,472 13.5 yrs £10,743

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 Rotherham

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 S66

Figures below are tailored to S66 — click through for full league tables.

Big-Roof Britain Rank #1251 of 2182
4.9 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #1635 of 2996
10.6 years (UK avg 10.8 years)
~£768 /yr • £8,139 upfront
Standing-Charge Drag Rank #2195 of 2996
30.6% (UK avg 26.6%) drag on savings
£235 fixed • ~£768 /yr value
Aspect Penalty View ranking →
East −22.0% West −20.4%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in S66

Monthly generation per kilowatt of solar panels

kWh 35 Jan 51 Feb 83 Mar 106 Apr 118 May 112 Jun 116 Jul 108 Aug 88 Sep 61 Oct 42 Nov 32 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 49.5% 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 39 kWh per month; the average month produces around 79 kWh. So a typical 4 kW home system would generate roughly 157 kWh in winter, or 318 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
25.31p/kWh
Daily Fixed Charge
64.38p/day
Local Sunshine
953kWh/kW
A 1 kW system generates ~953 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: 74% • Flats: 11% • Bungalows: 14% Based on 11,095 properties

Coverage

Rotherham (96%)|Doncaster (4%)

Areas Covered

Wickersley North, Thurcroft & Wickersley South, Maltby East, Hellaby & Maltby West, Bramley & Ravenfield, Tickhill & Wadsworth, Boston Castle, Conisbrough + 4 more

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 Yorkshire

S65 (Rotherham)
≈4.4 km away
Local sunshine: ~932 kWh/kWp · -2% vs S66
S60 (Rotherham)
≈6.3 km away
Local sunshine: ~928 kWh/kWp · -3% vs S66
DN12 (Doncaster)
≈6.9 km away
Local sunshine: ~958 kWh/kWp · +1% vs S66
S25 (Rotherham)
≈7.1 km away
Local sunshine: ~951 kWh/kWp · -0% vs S66
S62 (Rotherham)
≈7.2 km away
Local sunshine: ~943 kWh/kWp · -1% vs S66
S26 (Rotherham)
≈7.4 km away
Local sunshine: ~953 kWh/kWp · +0% vs S66

Similar sunshine across the UK

WS14 (Lichfield)
~953 kWh/kWp · +0% vs S66
HR6 (Herefordshire, County of)
~953 kWh/kWp · +0% vs S66
NG18 (Mansfield)
~953 kWh/kWp · -0% vs S66