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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in NE64 (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
13.7 years
After this, it's pure profit
Upfront Cost
£8,138
What you pay to get started
Annual Benefit
£592
What you save every year
Profit Over 25 Years
£6,666
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 915 kWh/kW — 10 below the regional median (926).

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 915 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)
915 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: £740, Upfront: £10,173, Break-even: 13.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1831 kWh 732 kWh 1099 kWh £186 £110 £296 £4,069 13.7 yrs £1,853
3 kW 2746 kWh 1099 kWh 1648 kWh £279 £165 £444 £6,104 13.7 yrs £2,779
4 kW 3662 kWh 1465 kWh 2197 kWh £372 £220 £592 £8,138 13.7 yrs £3,706
5 kW 4577 kWh 1831 kWh 2746 kWh £466 £275 £740 £10,173 13.7 yrs £4,632
6 kW 5493 kWh 2197 kWh 3296 kWh £559 £330 £888 £12,207 13.7 yrs £5,558
7 kW 6408 kWh 2563 kWh 3845 kWh £652 £384 £1,036 £14,242 13.7 yrs £6,485
8 kW 7324 kWh 2929 kWh 4394 kWh £745 £439 £1,184 £16,276 13.7 yrs £7,411

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: £881, Upfront: £12,273, 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 1831 kWh 1099 kWh 732 kWh £279 £73 £353 £6,169 17.5 yrs £883
3 kW 2746 kWh 1648 kWh 1099 kWh £419 £110 £529 £8,204 15.5 yrs £2,374
4 kW 3662 kWh 2197 kWh 1465 kWh £559 £146 £705 £10,238 14.5 yrs £3,866
5 kW 4577 kWh 2746 kWh 1831 kWh £698 £183 £881 £12,273 13.9 yrs £5,357
6 kW 5493 kWh 3296 kWh 2197 kWh £838 £220 £1,058 £14,307 13.5 yrs £6,848
7 kW 6408 kWh 3845 kWh 2563 kWh £978 £256 £1,234 £16,342 13.2 yrs £8,340
8 kW 7324 kWh 4394 kWh 2929 kWh £1,117 £293 £1,410 £18,376 13.0 yrs £9,831

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: £952, Upfront: £13,673, 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 1831 kWh 1282 kWh 549 kWh £326 £55 £381 £7,569 19.9 yrs £48
3 kW 2746 kWh 1922 kWh 824 kWh £489 £82 £571 £9,604 16.8 yrs £1,822
4 kW 3662 kWh 2563 kWh 1099 kWh £652 £110 £762 £11,638 15.3 yrs £3,596
5 kW 4577 kWh 3204 kWh 1373 kWh £815 £137 £952 £13,673 14.4 yrs £5,370
6 kW 5493 kWh 3845 kWh 1648 kWh £978 £165 £1,143 £15,707 13.7 yrs £7,143
7 kW 6408 kWh 4486 kWh 1922 kWh £1,141 £192 £1,333 £17,742 13.3 yrs £8,917
8 kW 7324 kWh 5126 kWh 2197 kWh £1,304 £220 £1,523 £19,776 13.0 yrs £10,691

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: £973, Upfront: £15,423, Break-even: 15.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1831 kWh 1337 kWh 494 kWh £340 £49 £389 £9,319 23.9 yrs £-1,533
3 kW 2746 kWh 2005 kWh 742 kWh £510 £74 £584 £11,354 19.4 yrs £326
4 kW 3662 kWh 2673 kWh 989 kWh £680 £99 £779 £13,388 17.2 yrs £2,185
5 kW 4577 kWh 3341 kWh 1236 kWh £850 £124 £973 £15,423 15.8 yrs £4,043
6 kW 5493 kWh 4010 kWh 1483 kWh £1,020 £148 £1,168 £17,457 14.9 yrs £5,902
7 kW 6408 kWh 4678 kWh 1730 kWh £1,190 £173 £1,363 £19,492 14.3 yrs £7,761
8 kW 7324 kWh 5346 kWh 1977 kWh £1,360 £198 £1,557 £21,526 13.8 yrs £9,619

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: £987, Upfront: £17,173, 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 1831 kWh 1373 kWh 458 kWh £349 £46 £395 £11,069 28.0 yrs £-3,170
3 kW 2746 kWh 2060 kWh 687 kWh £524 £69 £592 £13,104 22.1 yrs £-1,255
4 kW 3662 kWh 2746 kWh 915 kWh £698 £92 £790 £15,138 19.2 yrs £661
5 kW 4577 kWh 3433 kWh 1144 kWh £873 £114 £987 £17,173 17.4 yrs £2,576
6 kW 5493 kWh 4119 kWh 1373 kWh £1,048 £137 £1,185 £19,207 16.2 yrs £4,491
7 kW 6408 kWh 4806 kWh 1602 kWh £1,222 £160 £1,382 £21,242 15.4 yrs £6,406
8 kW 7324 kWh 5493 kWh 1831 kWh £1,397 £183 £1,580 £23,276 14.7 yrs £8,321

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: £1,002, Upfront: £19,623, Break-even: 19.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1831 kWh 1410 kWh 421 kWh £359 £42 £401 £13,519 33.7 yrs £-5,507
3 kW 2746 kWh 2115 kWh 632 kWh £538 £63 £601 £15,554 25.9 yrs £-3,535
4 kW 3662 kWh 2820 kWh 842 kWh £717 £84 £801 £17,588 22.0 yrs £-1,563
5 kW 4577 kWh 3524 kWh 1053 kWh £896 £105 £1,002 £19,623 19.6 yrs £408
6 kW 5493 kWh 4229 kWh 1263 kWh £1,076 £126 £1,202 £21,657 18.0 yrs £2,380
7 kW 6408 kWh 4934 kWh 1474 kWh £1,255 £147 £1,402 £23,692 16.9 yrs £4,352
8 kW 7324 kWh 5639 kWh 1684 kWh £1,434 £168 £1,602 £25,726 16.1 yrs £6,323

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 NE64

Figures below are tailored to NE64 — click through for full league tables.

Big-Roof Britain Rank #1366 of 2182
4.8 kWp (UK avg 5.1 kWp)
~10 panels (≈430 W)
Solar Payback Index Rank #2334 of 2997
12.0 years (UK avg 11.3 years)
~£677 /yr • £8,138 upfront
Standing-Charge Drag Rank #2744 of 2997
32.3% (UK avg 21.7%) drag on savings
£218 fixed • ~£677 /yr value

Your Area at a Glance

Your Electricity Rate
25.43p/kWh
Daily Fixed Charge
59.86p/day
Local Sunshine
915kWh/kW
A 1 kW system generates ~915 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: 78% • Flats: 10% • Bungalows: 12% Based on 1,490 properties

Coverage

Northumberland (100%)

Areas Covered

Newbiggin-by-the-Sea, Seaton with Spital, College with North Seaton

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

NE63 (Northumberland)
≈2.9 km away
Local sunshine: ~945 kWh/kWp · +3% vs NE64
NE62 (Northumberland)
≈5.7 km away
Local sunshine: ~945 kWh/kWp · +3% vs NE64
NE24 (Northumberland)
≈6.7 km away
Local sunshine: ~919 kWh/kWp · +0% vs NE64
NE22 (Northumberland)
≈7.1 km away
Local sunshine: ~948 kWh/kWp · +4% vs NE64
NE61 (Northumberland)
≈11.0 km away
Local sunshine: ~939 kWh/kWp · +3% vs NE64
NE23 (Northumberland)
≈11.6 km away
Local sunshine: ~950 kWh/kWp · +4% vs NE64

Similar sunshine across the UK

BD11 (Kirklees)
~915 kWh/kWp · -0% vs NE64
CA15 (Cumberland)
~915 kWh/kWp · +0% vs NE64
LS28 (Leeds)
~916 kWh/kWp · +0% vs NE64