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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in SK15 (Tameside)

See if solar pays off for you in Tameside — 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
14.4 years
After this, it's pure profit
Upfront Cost
£8,138
What you pay to get started
Annual Benefit
£567
What you save every year
Profit Over 25 Years
£6,028
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 North West, the current unit rate is 27.11p/kWh with a 51.16p/day standing charge. Your postcode’s south-facing sunshine yield is 841 kWh/kW — 29 below the regional median (870).

Read the full story

A typical roof here lands around 4.0 kW, with most eligible homes comfortably fitting within 3–6 kW. Each kilowatt of panels produces roughly 841 kWh per year on a south-facing roof. We value self-used electricity at 27.1p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
27.1p/kWh
Standing charge
51.2p/day
Sunshine yield (south)
841 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: £708, Upfront: £10,173, Break-even: 14.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1682 kWh 673 kWh 1009 kWh £182 £101 £283 £4,069 14.4 yrs £1,597
3 kW 2523 kWh 1009 kWh 1514 kWh £274 £151 £425 £6,104 14.4 yrs £2,396
4 kW 3364 kWh 1346 kWh 2018 kWh £365 £202 £567 £8,138 14.4 yrs £3,194
5 kW 4205 kWh 1682 kWh 2523 kWh £456 £252 £708 £10,173 14.4 yrs £3,993
6 kW 5046 kWh 2018 kWh 3028 kWh £547 £303 £850 £12,207 14.4 yrs £4,792
7 kW 5887 kWh 2355 kWh 3532 kWh £638 £353 £992 £14,242 14.4 yrs £5,590
8 kW 6728 kWh 2691 kWh 4037 kWh £730 £404 £1,133 £16,276 14.4 yrs £6,389

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: £852, Upfront: £12,273, Break-even: 14.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1682 kWh 1009 kWh 673 kWh £274 £67 £341 £6,169 18.1 yrs £648
3 kW 2523 kWh 1514 kWh 1009 kWh £410 £101 £511 £8,204 16.0 yrs £2,023
4 kW 3364 kWh 2018 kWh 1346 kWh £547 £135 £682 £10,238 15.0 yrs £3,397
5 kW 4205 kWh 2523 kWh 1682 kWh £684 £168 £852 £12,273 14.4 yrs £4,771
6 kW 5046 kWh 3028 kWh 2018 kWh £821 £202 £1,023 £14,307 14.0 yrs £6,145
7 kW 5887 kWh 3532 kWh 2355 kWh £958 £235 £1,193 £16,342 13.7 yrs £7,519
8 kW 6728 kWh 4037 kWh 2691 kWh £1,094 £269 £1,363 £18,376 13.5 yrs £8,894

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: £924, Upfront: £13,673, 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 1682 kWh 1177 kWh 505 kWh £319 £50 £370 £7,569 20.5 yrs £-176
3 kW 2523 kWh 1766 kWh 757 kWh £479 £76 £554 £9,604 17.3 yrs £1,486
4 kW 3364 kWh 2355 kWh 1009 kWh £638 £101 £739 £11,638 15.7 yrs £3,148
5 kW 4205 kWh 2943 kWh 1261 kWh £798 £126 £924 £13,673 14.8 yrs £4,810
6 kW 5046 kWh 3532 kWh 1514 kWh £958 £151 £1,109 £15,707 14.2 yrs £6,472
7 kW 5887 kWh 4121 kWh 1766 kWh £1,117 £177 £1,294 £17,742 13.7 yrs £8,134
8 kW 6728 kWh 4710 kWh 2018 kWh £1,277 £202 £1,479 £19,776 13.4 yrs £9,796

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: £946, Upfront: £15,423, Break-even: 16.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1682 kWh 1228 kWh 454 kWh £333 £45 £378 £9,319 24.6 yrs £-1,753
3 kW 2523 kWh 1842 kWh 681 kWh £499 £68 £567 £11,354 20.0 yrs £-5
4 kW 3364 kWh 2456 kWh 908 kWh £666 £91 £757 £13,388 17.7 yrs £1,743
5 kW 4205 kWh 3070 kWh 1135 kWh £832 £114 £946 £15,423 16.3 yrs £3,492
6 kW 5046 kWh 3684 kWh 1362 kWh £999 £136 £1,135 £17,457 15.4 yrs £5,240
7 kW 5887 kWh 4297 kWh 1589 kWh £1,165 £159 £1,324 £19,492 14.7 yrs £6,988
8 kW 6728 kWh 4911 kWh 1817 kWh £1,331 £182 £1,513 £21,526 14.2 yrs £8,737

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: £960, Upfront: £17,173, Break-even: 17.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1682 kWh 1261 kWh 420 kWh £342 £42 £384 £11,069 28.8 yrs £-3,388
3 kW 2523 kWh 1892 kWh 631 kWh £513 £63 £576 £13,104 22.7 yrs £-1,582
4 kW 3364 kWh 2523 kWh 841 kWh £684 £84 £768 £15,138 19.7 yrs £223
5 kW 4205 kWh 3154 kWh 1051 kWh £855 £105 £960 £17,173 17.9 yrs £2,029
6 kW 5046 kWh 3784 kWh 1261 kWh £1,026 £126 £1,152 £19,207 16.7 yrs £3,835
7 kW 5887 kWh 4415 kWh 1472 kWh £1,197 £147 £1,344 £21,242 15.8 yrs £5,641
8 kW 6728 kWh 5046 kWh 1682 kWh £1,368 £168 £1,536 £23,276 15.2 yrs £7,447

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: £974, Upfront: £19,623, Break-even: 20.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1682 kWh 1295 kWh 387 kWh £351 £39 £390 £13,519 34.7 yrs £-5,723
3 kW 2523 kWh 1943 kWh 580 kWh £527 £58 £585 £15,554 26.6 yrs £-3,860
4 kW 3364 kWh 2590 kWh 774 kWh £702 £77 £780 £17,588 22.6 yrs £-1,996
5 kW 4205 kWh 3238 kWh 967 kWh £878 £97 £974 £19,623 20.1 yrs £-133
6 kW 5046 kWh 3885 kWh 1161 kWh £1,053 £116 £1,169 £21,657 18.5 yrs £1,731
7 kW 5887 kWh 4533 kWh 1354 kWh £1,229 £135 £1,364 £23,692 17.4 yrs £3,594
8 kW 6728 kWh 5180 kWh 1547 kWh £1,404 £155 £1,559 £25,726 16.5 yrs £5,457

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 SK15

Figures below are tailored to SK15 — click through for full league tables.

Big-Roof Britain Rank #1810 of 2182
4.4 kWp (UK avg 5.1 kWp)
~9 panels (≈430 W)
Solar Payback Index Rank #2658 of 2997
12.5 years (UK avg 11.3 years)
~£653 /yr • £8,138 upfront
Standing-Charge Drag Rank #2604 of 2997
28.6% (UK avg 21.7%) drag on savings
£187 fixed • ~£653 /yr value

Your Area at a Glance

Your Electricity Rate
27.11p/kWh
Daily Fixed Charge
51.16p/day
Local Sunshine
841kWh/kW
A 1 kW system generates ~841 kWh per year. A typical home uses ~2,700 kWh per year.
Typical System Size
4.0kW
For houses & bungalows in this area

Local Property Data

Property Types

Houses: 68% • Flats: 25% • Bungalows: 6% Based on 7,060 properties

Coverage

Tameside (100%)

Areas Covered

Stalybridge North, Stalybridge South, Dukinfield Stalybridge, St Peter's, Ashton St Michael's, Mossley

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 North West

SK16 (Tameside)
≈2.4 km away
Local sunshine: ~842 kWh/kWp · +0% vs SK15
OL6 (Tameside)
≈2.6 km away
Local sunshine: ~842 kWh/kWp · +0% vs SK15
OL7 (Tameside)
≈3.5 km away
Local sunshine: ~845 kWh/kWp · +0% vs SK15
OL5 (Tameside)
≈3.7 km away
Local sunshine: ~803 kWh/kWp · -5% vs SK15
SK14 (Tameside)
≈3.8 km away
Local sunshine: ~841 kWh/kWp · +0% vs SK15
M34 (Tameside)
≈5.2 km away
Local sunshine: ~845 kWh/kWp · +0% vs SK15

Similar sunshine across the UK

G74 (South Lanarkshire)
~841 kWh/kWp · +0% vs SK15
PA20 (Argyll and Bute)
~841 kWh/kWp · +0% vs SK15
DG13 (Dumfries and Galloway)
~841 kWh/kWp · -0% vs SK15