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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in NE67 (Northumberland)

See if solar pays off for you in Northumberland — 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
13.3 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£920
What you save every year
Profit Over 25 Years
£10,782
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 Northern, the current unit rate is 25.43p/kWh with a 59.86p/day standing charge. Your postcode’s south-facing sunshine yield is 948 kWh/kW — 22 above the regional median (926).

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 948 kWh per year on a south-facing roof. We value self-used electricity at 25.4p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
25.4p/kWh
Standing charge
59.9p/day
Sunshine yield (south)
948 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: £766, Upfront: £10,173, 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 1895 kWh 758 kWh 1137 kWh £193 £114 £307 £4,069 13.3 yrs £2,061
3 kW 2843 kWh 1137 kWh 1706 kWh £289 £171 £460 £6,104 13.3 yrs £3,092
4 kW 3791 kWh 1516 kWh 2274 kWh £386 £227 £613 £8,138 13.3 yrs £4,123
5 kW 4738 kWh 1895 kWh 2843 kWh £482 £284 £766 £10,173 13.3 yrs £5,153
6 kW 5686 kWh 2274 kWh 3412 kWh £578 £341 £920 £12,207 13.3 yrs £6,184
7 kW 6634 kWh 2653 kWh 3980 kWh £675 £398 £1,073 £14,242 13.3 yrs £7,214
8 kW 7581 kWh 3033 kWh 4549 kWh £771 £455 £1,226 £16,276 13.3 yrs £8,245

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: £913, Upfront: £12,273, Break-even: 13.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1895 kWh 1137 kWh 758 kWh £289 £76 £365 £6,169 16.9 yrs £1,131
3 kW 2843 kWh 1706 kWh 1137 kWh £434 £114 £548 £8,204 15.0 yrs £2,747
4 kW 3791 kWh 2274 kWh 1516 kWh £578 £152 £730 £10,238 14.0 yrs £4,362
5 kW 4738 kWh 2843 kWh 1895 kWh £723 £190 £913 £12,273 13.4 yrs £5,978
6 kW 5686 kWh 3412 kWh 2274 kWh £868 £227 £1,095 £14,307 13.1 yrs £7,593
7 kW 6634 kWh 3980 kWh 2653 kWh £1,012 £265 £1,278 £16,342 12.8 yrs £9,209
8 kW 7581 kWh 4549 kWh 3033 kWh £1,157 £303 £1,460 £18,376 12.6 yrs £10,824

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: £986, Upfront: £13,673, Break-even: 13.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1895 kWh 1327 kWh 569 kWh £337 £57 £394 £7,569 19.2 yrs £316
3 kW 2843 kWh 1990 kWh 853 kWh £506 £85 £591 £9,604 16.2 yrs £2,224
4 kW 3791 kWh 2653 kWh 1137 kWh £675 £114 £788 £11,638 14.8 yrs £4,132
5 kW 4738 kWh 3317 kWh 1422 kWh £843 £142 £986 £13,673 13.9 yrs £6,040
6 kW 5686 kWh 3980 kWh 1706 kWh £1,012 £171 £1,183 £15,707 13.3 yrs £7,948
7 kW 6634 kWh 4644 kWh 1990 kWh £1,181 £199 £1,380 £17,742 12.9 yrs £9,856
8 kW 7581 kWh 5307 kWh 2274 kWh £1,350 £227 £1,577 £19,776 12.5 yrs £11,764

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: £1,008, Upfront: £15,423, Break-even: 15.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1895 kWh 1384 kWh 512 kWh £352 £51 £403 £9,319 23.1 yrs £-1,259
3 kW 2843 kWh 2075 kWh 768 kWh £528 £77 £605 £11,354 18.8 yrs £737
4 kW 3791 kWh 2767 kWh 1023 kWh £704 £102 £806 £13,388 16.6 yrs £2,733
5 kW 4738 kWh 3459 kWh 1279 kWh £880 £128 £1,008 £15,423 15.3 yrs £4,729
6 kW 5686 kWh 4151 kWh 1535 kWh £1,056 £154 £1,209 £17,457 14.4 yrs £6,724
7 kW 6634 kWh 4843 kWh 1791 kWh £1,231 £179 £1,411 £19,492 13.8 yrs £8,720
8 kW 7581 kWh 5534 kWh 2047 kWh £1,407 £205 £1,612 £21,526 13.4 yrs £10,716

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: £1,022, Upfront: £17,173, Break-even: 16.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1895 kWh 1422 kWh 474 kWh £361 £47 £409 £11,069 27.1 yrs £-2,892
3 kW 2843 kWh 2132 kWh 711 kWh £542 £71 £613 £13,104 21.4 yrs £-837
4 kW 3791 kWh 2843 kWh 948 kWh £723 £95 £818 £15,138 18.5 yrs £1,217
5 kW 4738 kWh 3554 kWh 1185 kWh £904 £118 £1,022 £17,173 16.8 yrs £3,271
6 kW 5686 kWh 4265 kWh 1422 kWh £1,084 £142 £1,227 £19,207 15.7 yrs £5,325
7 kW 6634 kWh 4975 kWh 1658 kWh £1,265 £166 £1,431 £21,242 14.8 yrs £7,379
8 kW 7581 kWh 5686 kWh 1895 kWh £1,446 £190 £1,635 £23,276 14.2 yrs £9,434

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: £1,037, Upfront: £19,623, Break-even: 18.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1895 kWh 1459 kWh 436 kWh £371 £44 £415 £13,519 32.6 yrs £-5,225
3 kW 2843 kWh 2189 kWh 654 kWh £557 £65 £622 £15,554 25.0 yrs £-3,112
4 kW 3791 kWh 2919 kWh 872 kWh £742 £87 £829 £17,588 21.2 yrs £-999
5 kW 4738 kWh 3649 kWh 1090 kWh £928 £109 £1,037 £19,623 18.9 yrs £1,114
6 kW 5686 kWh 4378 kWh 1308 kWh £1,113 £131 £1,244 £21,657 17.4 yrs £3,226
7 kW 6634 kWh 5108 kWh 1526 kWh £1,299 £153 £1,452 £23,692 16.3 yrs £5,339
8 kW 7581 kWh 5838 kWh 1744 kWh £1,485 £174 £1,659 £25,726 15.5 yrs £7,452

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 NE67

Figures below are tailored to NE67 — click through for full league tables.

Big-Roof Britain Rank #112 of 2182
6.5 kWp (UK avg 5.1 kWp)
~14 panels (≈430 W)
Solar Payback Index Rank #1877 of 2997
11.6 years (UK avg 11.3 years)
~£1,051 /yr • £12,207 upfront
Standing-Charge Drag Rank #1563 of 2997
20.8% (UK avg 21.7%) drag on savings
£218 fixed • ~£1,051 /yr value

Your Area at a Glance

Your Electricity Rate
25.43p/kWh
Daily Fixed Charge
59.86p/day
Local Sunshine
948kWh/kW
A 1 kW system generates ~948 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: 62% • Flats: 8% • Bungalows: 30% Based on 645 properties

Coverage

Northumberland (100%)

Areas Covered

Bamburgh, Wooler, Longhoughton, Alnwick Castle

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 Northern

NE68 (Northumberland)
≈5.0 km away
Local sunshine: ~911 kWh/kWp · -4% vs NE67
NE69 (Northumberland)
≈7.4 km away
Local sunshine: ~938 kWh/kWp · -1% vs NE67
NE70 (Northumberland)
≈10.3 km away
Local sunshine: ~941 kWh/kWp · -1% vs NE67
NE66 (Northumberland)
≈14.4 km away
Local sunshine: ~949 kWh/kWp · +0% vs NE67
NE71 (Northumberland)
≈20.1 km away
Local sunshine: ~912 kWh/kWp · -4% vs NE67
NE65 (Northumberland)
≈25.4 km away
Local sunshine: ~916 kWh/kWp · -3% vs NE67

Similar sunshine across the UK

SY8 (Shropshire)
~948 kWh/kWp · -0% vs NE67
L61 (Wirral)
~948 kWh/kWp · +0% vs NE67
HU15 (East Riding of Yorkshire)
~948 kWh/kWp · +0% vs NE67