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Solar Panels in BT45 (Mid Ulster)

See if solar pays off for you in Mid Ulster — 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
39.1 years
After this, it's pure profit
Upfront Cost
£12,207
What you pay to get started
Annual Benefit
£312
What you save every year
Profit Over 25 Years
£-4,402
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 867 kWh/kW — 123 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 867 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)
867 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: £260, Upfront: £10,173, Break-even: 39.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1734 kWh 694 kWh 1041 kWh £0 £104 £104 £4,069 39.1 yrs £-1,988
3 kW 2602 kWh 1041 kWh 1561 kWh £0 £156 £156 £6,104 39.1 yrs £-2,982
4 kW 3469 kWh 1388 kWh 2081 kWh £0 £208 £208 £8,138 39.1 yrs £-3,975
5 kW 4336 kWh 1734 kWh 2602 kWh £0 £260 £260 £10,173 39.1 yrs £-4,969
6 kW 5203 kWh 2081 kWh 3122 kWh £0 £312 £312 £12,207 39.1 yrs £-5,963
7 kW 6071 kWh 2428 kWh 3642 kWh £0 £364 £364 £14,242 39.1 yrs £-6,957
8 kW 6938 kWh 2775 kWh 4163 kWh £0 £416 £416 £16,276 39.1 yrs £-7,951

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: £173, Upfront: £12,273, Break-even: 70.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1734 kWh 1041 kWh 694 kWh £0 £69 £69 £6,169 88.9 yrs £-4,781
3 kW 2602 kWh 1561 kWh 1041 kWh £0 £104 £104 £8,204 78.8 yrs £-6,122
4 kW 3469 kWh 2081 kWh 1388 kWh £0 £139 £139 £10,238 73.8 yrs £-7,463
5 kW 4336 kWh 2602 kWh 1734 kWh £0 £173 £173 £12,273 70.8 yrs £-8,804
6 kW 5203 kWh 3122 kWh 2081 kWh £0 £208 £208 £14,307 68.7 yrs £-10,144
7 kW 6071 kWh 3642 kWh 2428 kWh £0 £243 £243 £16,342 67.3 yrs £-11,485
8 kW 6938 kWh 4163 kWh 2775 kWh £0 £278 £278 £18,376 66.2 yrs £-12,826

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: £130, Upfront: £13,673, Break-even: 105.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1734 kWh 1214 kWh 520 kWh £0 £52 £52 £7,569 145.5 yrs £-6,528
3 kW 2602 kWh 1821 kWh 781 kWh £0 £78 £78 £9,604 123.0 yrs £-8,043
4 kW 3469 kWh 2428 kWh 1041 kWh £0 £104 £104 £11,638 111.8 yrs £-9,557
5 kW 4336 kWh 3035 kWh 1301 kWh £0 £130 £130 £13,673 105.1 yrs £-11,071
6 kW 5203 kWh 3642 kWh 1561 kWh £0 £156 £156 £15,707 100.6 yrs £-12,585
7 kW 6071 kWh 4249 kWh 1821 kWh £0 £182 £182 £17,742 97.4 yrs £-14,099
8 kW 6938 kWh 4856 kWh 2081 kWh £0 £208 £208 £19,776 95.0 yrs £-15,613

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: £117, Upfront: £15,423, Break-even: 131.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1734 kWh 1266 kWh 468 kWh £0 £47 £47 £9,319 199.0 yrs £-8,382
3 kW 2602 kWh 1899 kWh 702 kWh £0 £70 £70 £11,354 161.6 yrs £-9,949
4 kW 3469 kWh 2532 kWh 937 kWh £0 £94 £94 £13,388 142.9 yrs £-11,515
5 kW 4336 kWh 3165 kWh 1171 kWh £0 £117 £117 £15,423 131.7 yrs £-13,081
6 kW 5203 kWh 3798 kWh 1405 kWh £0 £140 £140 £17,457 124.3 yrs £-14,647
7 kW 6071 kWh 4432 kWh 1639 kWh £0 £164 £164 £19,492 118.9 yrs £-16,213
8 kW 6938 kWh 5065 kWh 1873 kWh £0 £187 £187 £21,526 114.9 yrs £-17,780

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: £108, Upfront: £17,173, Break-even: 158.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1734 kWh 1301 kWh 434 kWh £0 £43 £43 £11,069 255.3 yrs £-10,202
3 kW 2602 kWh 1951 kWh 650 kWh £0 £65 £65 £13,104 201.5 yrs £-11,803
4 kW 3469 kWh 2602 kWh 867 kWh £0 £87 £87 £15,138 174.6 yrs £-13,404
5 kW 4336 kWh 3252 kWh 1084 kWh £0 £108 £108 £17,173 158.4 yrs £-15,004
6 kW 5203 kWh 3903 kWh 1301 kWh £0 £130 £130 £19,207 147.7 yrs £-16,605
7 kW 6071 kWh 4553 kWh 1518 kWh £0 £152 £152 £21,242 140.0 yrs £-18,206
8 kW 6938 kWh 5203 kWh 1734 kWh £0 £173 £173 £23,276 134.2 yrs £-19,807

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: £100, Upfront: £19,623, Break-even: 196.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1734 kWh 1336 kWh 399 kWh £0 £40 £40 £13,519 338.9 yrs £-12,721
3 kW 2602 kWh 2003 kWh 598 kWh £0 £60 £60 £15,554 259.9 yrs £-14,357
4 kW 3469 kWh 2671 kWh 798 kWh £0 £80 £80 £17,588 220.4 yrs £-15,992
5 kW 4336 kWh 3339 kWh 997 kWh £0 £100 £100 £19,623 196.8 yrs £-17,628
6 kW 5203 kWh 4007 kWh 1197 kWh £0 £120 £120 £21,657 181.0 yrs £-19,264
7 kW 6071 kWh 4674 kWh 1396 kWh £0 £140 £140 £23,692 169.7 yrs £-20,899
8 kW 6938 kWh 5342 kWh 1596 kWh £0 £160 £160 £25,726 161.2 yrs £-22,535

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
867kWh/kW
A 1 kW system generates ~867 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

Mid Ulster (100%)

Areas Covered

Glebe, Castledawson, Tobermore, Town Parks East, Coolshinny, The Loup, Draperstown, Ballymaguigan + 4 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

BT46 (Mid Ulster)
≈11.2 km away
Local sunshine: ~852 kWh/kWp · -2% vs BT45
BT80 (Mid Ulster)
≈15.2 km away
Local sunshine: ~873 kWh/kWp · +1% vs BT45
BT42 (Mid and East Antrim)
≈24.1 km away
Local sunshine: ~838 kWh/kWp · -3% vs BT45
BT43 (Mid and East Antrim)
≈25.4 km away
Local sunshine: ~838 kWh/kWp · -3% vs BT45
BT41 (Antrim and Newtownabbey)
≈26.0 km away
Local sunshine: ~866 kWh/kWp · -0% vs BT45
BT71 (Mid Ulster)
≈28.1 km away
Local sunshine: ~877 kWh/kWp · +1% vs BT45

Similar sunshine across the UK

KA20 (North Ayrshire)
~868 kWh/kWp · +0% vs BT45
M27 (Salford)
~868 kWh/kWp · +0% vs BT45
EH52 (West Lothian)
~868 kWh/kWp · +0% vs BT45