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Big Roof Britain Solar Payback Index Standing Charge Drag

Solar Panels in BT67 (Armagh City, Banbridge and Craigavon)

See if solar pays off for you in Armagh City, Banbridge and Craigavon — 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
38.1 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£321
What you save every year
Profit Over 25 Years
£-4,193
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 Ireland, the current unit rate is 0.00p/kWh with a 0.00p/day standing charge. Your postcode’s south-facing sunshine yield is 890 kWh/kW — 100 below the regional median (991).

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 890 kWh per year on a south-facing roof. We value self-used electricity at 0.0p and exported surplus at a baseline 10p via SEG. Use the calculator above for your exact tariff.

Unit rate
0.0p/kWh
Standing charge
0.0p/day
Sunshine yield (south)
890 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: £267, Upfront: £10,173, Break-even: 38.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1781 kWh 712 kWh 1069 kWh £0 £107 £107 £4,069 38.1 yrs £-1,932
3 kW 2671 kWh 1069 kWh 1603 kWh £0 £160 £160 £6,104 38.1 yrs £-2,898
4 kW 3562 kWh 1425 kWh 2137 kWh £0 £214 £214 £8,138 38.1 yrs £-3,864
5 kW 4452 kWh 1781 kWh 2671 kWh £0 £267 £267 £10,173 38.1 yrs £-4,830
6 kW 5343 kWh 2137 kWh 3206 kWh £0 £321 £321 £12,207 38.1 yrs £-5,796
7 kW 6233 kWh 2493 kWh 3740 kWh £0 £374 £374 £14,242 38.1 yrs £-6,762
8 kW 7123 kWh 2849 kWh 4274 kWh £0 £427 £427 £16,276 38.1 yrs £-7,728

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: £178, Upfront: £12,273, Break-even: 68.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1781 kWh 1069 kWh 712 kWh £0 £71 £71 £6,169 86.6 yrs £-4,744
3 kW 2671 kWh 1603 kWh 1069 kWh £0 £107 £107 £8,204 76.8 yrs £-6,066
4 kW 3562 kWh 2137 kWh 1425 kWh £0 £142 £142 £10,238 71.9 yrs £-7,389
5 kW 4452 kWh 2671 kWh 1781 kWh £0 £178 £178 £12,273 68.9 yrs £-8,711
6 kW 5343 kWh 3206 kWh 2137 kWh £0 £214 £214 £14,307 66.9 yrs £-10,033
7 kW 6233 kWh 3740 kWh 2493 kWh £0 £249 £249 £16,342 65.5 yrs £-11,355
8 kW 7123 kWh 4274 kWh 2849 kWh £0 £285 £285 £18,376 64.5 yrs £-12,677

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: £134, Upfront: £13,673, Break-even: 102.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1781 kWh 1247 kWh 534 kWh £0 £53 £53 £7,569 141.7 yrs £-6,501
3 kW 2671 kWh 1870 kWh 801 kWh £0 £80 £80 £9,604 119.8 yrs £-8,001
4 kW 3562 kWh 2493 kWh 1069 kWh £0 £107 £107 £11,638 108.9 yrs £-9,501
5 kW 4452 kWh 3117 kWh 1336 kWh £0 £134 £134 £13,673 102.4 yrs £-11,001
6 kW 5343 kWh 3740 kWh 1603 kWh £0 £160 £160 £15,707 98.0 yrs £-12,502
7 kW 6233 kWh 4363 kWh 1870 kWh £0 £187 £187 £17,742 94.9 yrs £-14,002
8 kW 7123 kWh 4986 kWh 2137 kWh £0 £214 £214 £19,776 92.5 yrs £-15,502

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: £120, Upfront: £15,423, Break-even: 128.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1781 kWh 1300 kWh 481 kWh £0 £48 £48 £9,319 193.8 yrs £-8,357
3 kW 2671 kWh 1950 kWh 721 kWh £0 £72 £72 £11,354 157.4 yrs £-9,911
4 kW 3562 kWh 2600 kWh 962 kWh £0 £96 £96 £13,388 139.2 yrs £-11,465
5 kW 4452 kWh 3250 kWh 1202 kWh £0 £120 £120 £15,423 128.3 yrs £-13,018
6 kW 5343 kWh 3900 kWh 1442 kWh £0 £144 £144 £17,457 121.0 yrs £-14,572
7 kW 6233 kWh 4550 kWh 1683 kWh £0 £168 £168 £19,492 115.8 yrs £-16,126
8 kW 7123 kWh 5200 kWh 1923 kWh £0 £192 £192 £21,526 111.9 yrs £-17,679

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: £111, Upfront: £17,173, Break-even: 154.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1781 kWh 1336 kWh 445 kWh £0 £45 £45 £11,069 248.6 yrs £-10,179
3 kW 2671 kWh 2003 kWh 668 kWh £0 £67 £67 £13,104 196.2 yrs £-11,768
4 kW 3562 kWh 2671 kWh 890 kWh £0 £89 £89 £15,138 170.0 yrs £-13,357
5 kW 4452 kWh 3339 kWh 1113 kWh £0 £111 £111 £17,173 154.3 yrs £-14,946
6 kW 5343 kWh 4007 kWh 1336 kWh £0 £134 £134 £19,207 143.8 yrs £-16,536
7 kW 6233 kWh 4675 kWh 1558 kWh £0 £156 £156 £21,242 136.3 yrs £-18,125
8 kW 7123 kWh 5343 kWh 1781 kWh £0 £178 £178 £23,276 130.7 yrs £-19,714

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: £102, Upfront: £19,623, Break-even: 191.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1781 kWh 1371 kWh 410 kWh £0 £41 £41 £13,519 330.1 yrs £-12,700
3 kW 2671 kWh 2057 kWh 614 kWh £0 £61 £61 £15,554 253.2 yrs £-14,325
4 kW 3562 kWh 2743 kWh 819 kWh £0 £82 £82 £17,588 214.7 yrs £-15,950
5 kW 4452 kWh 3428 kWh 1024 kWh £0 £102 £102 £19,623 191.6 yrs £-17,575
6 kW 5343 kWh 4114 kWh 1229 kWh £0 £123 £123 £21,657 176.2 yrs £-19,199
7 kW 6233 kWh 4799 kWh 1434 kWh £0 £143 £143 £23,692 165.3 yrs £-20,824
8 kW 7123 kWh 5485 kWh 1638 kWh £0 £164 £164 £25,726 157.0 yrs £-22,449

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.

Your Area at a Glance

Your Electricity Rate
0.00p/kWh
Daily Fixed Charge
0.00p/day
Local Sunshine
890kWh/kW
A 1 kW system generates ~890 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

No EPC data available for this outcode

Coverage

Armagh City, Banbridge and Craigavon (56%)|Lisburn and Castlereagh (44%)

Areas Covered

Aghagallon, Parklake, Lagan, Moira, Magheralin, Lough Road, Maghaberry, Ballinderry + 1 more

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 Ireland

BT66 (Armagh City, Banbridge and Craigavon)
≈5.0 km away
Local sunshine: ~886 kWh/kWp · -1% vs BT67
BT65 (Armagh City, Banbridge and Craigavon)
≈7.4 km away
Local sunshine: ~886 kWh/kWp · -1% vs BT67
BT64 (Armagh City, Banbridge and Craigavon)
≈8.4 km away
Local sunshine: ~886 kWh/kWp · -1% vs BT67
BT63 (Armagh City, Banbridge and Craigavon)
≈11.2 km away
Local sunshine: ~880 kWh/kWp · -1% vs BT67
BT25 (Armagh City, Banbridge and Craigavon)
≈11.6 km away
Local sunshine: ~886 kWh/kWp · -1% vs BT67
BT26 (Lisburn and Castlereagh)
≈12.4 km away
Local sunshine: ~889 kWh/kWp · -0% vs BT67

Similar sunshine across the UK

PA42 (Argyll and Bute)
~890 kWh/kWp · +0% vs BT67
EH95 (City of Edinburgh)
~890 kWh/kWp · -0% vs BT67
ST8 (Staffordshire Moorlands)
~891 kWh/kWp · +0% vs BT67