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Solar panel cost in Mid Ulster (BT45)

See realistic solar installation costs, savings and payback for BT45 (Mid Ulster) in under a minute using official UK data. Start with the calculator, then get a no-obligation quote from an MCS-certified installer. You can also ask the SolarByPostcode assistant to sanity-check your roof, bills and plans.

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
31.3 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£312
What you save every year
Profit Over 25 Years
£-1,961
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: The official cost per kW is lower above 4 kW, so a 5–6 kW system can pay back a little faster than a 3–4 kW system on otherwise identical assumptions.
  • 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

Panel costs: Uses March 2026 TIC mean installation costs: £1,827/kW up to 4 kW and £1,628/kW above 4 kW.

Other costs: Battery prices are modelled at £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: £8,139, Break-even: 31.3 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 £3,256 31.3 yrs £-1,174
3 kW 2602 kWh 1041 kWh 1561 kWh £0 £156 £156 £4,883 31.3 yrs £-1,761
4 kW 3469 kWh 1388 kWh 2081 kWh £0 £208 £208 £6,511 31.3 yrs £-2,348
5 kW 4336 kWh 1734 kWh 2602 kWh £0 £260 £260 £8,139 31.3 yrs £-2,935
6 kW 5203 kWh 2081 kWh 3122 kWh £0 £312 £312 £9,767 31.3 yrs £-3,523
7 kW 6071 kWh 2428 kWh 3642 kWh £0 £364 £364 £11,394 31.3 yrs £-4,110
8 kW 6938 kWh 2775 kWh 4163 kWh £0 £416 £416 £13,022 31.3 yrs £-4,697

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

3 kWh battery 5 kW example → Annual benefit: £173, Upfront: £10,239, Break-even: 59.0 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 £5,356 77.2 yrs £-3,968
3 kW 2602 kWh 1561 kWh 1041 kWh £0 £104 £104 £6,983 67.1 yrs £-4,902
4 kW 3469 kWh 2081 kWh 1388 kWh £0 £139 £139 £8,611 62.1 yrs £-5,836
5 kW 4336 kWh 2602 kWh 1734 kWh £0 £173 £173 £10,239 59.0 yrs £-6,770
6 kW 5203 kWh 3122 kWh 2081 kWh £0 £208 £208 £11,867 57.0 yrs £-7,704
7 kW 6071 kWh 3642 kWh 2428 kWh £0 £243 £243 £13,494 55.6 yrs £-8,638
8 kW 6938 kWh 4163 kWh 2775 kWh £0 £278 £278 £15,122 54.5 yrs £-9,572

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

5 kWh battery 5 kW example → Annual benefit: £130, Upfront: £11,639, Break-even: 89.5 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 £6,756 129.8 yrs £-5,715
3 kW 2602 kWh 1821 kWh 781 kWh £0 £78 £78 £8,383 107.4 yrs £-6,822
4 kW 3469 kWh 2428 kWh 1041 kWh £0 £104 £104 £10,011 96.2 yrs £-7,930
5 kW 4336 kWh 3035 kWh 1301 kWh £0 £130 £130 £11,639 89.5 yrs £-9,037
6 kW 5203 kWh 3642 kWh 1561 kWh £0 £156 £156 £13,267 85.0 yrs £-10,145
7 kW 6071 kWh 4249 kWh 1821 kWh £0 £182 £182 £14,894 81.8 yrs £-11,252
8 kW 6938 kWh 4856 kWh 2081 kWh £0 £208 £208 £16,522 79.4 yrs £-12,359

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

7.5 kWh battery 5 kW example → Annual benefit: £117, Upfront: £13,389, Break-even: 114.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1734 kWh 1266 kWh 468 kWh £0 £47 £47 £8,506 181.6 yrs £-7,569
3 kW 2602 kWh 1899 kWh 702 kWh £0 £70 £70 £10,133 144.3 yrs £-8,728
4 kW 3469 kWh 2532 kWh 937 kWh £0 £94 £94 £11,761 125.6 yrs £-9,888
5 kW 4336 kWh 3165 kWh 1171 kWh £0 £117 £117 £13,389 114.4 yrs £-11,047
6 kW 5203 kWh 3798 kWh 1405 kWh £0 £140 £140 £15,017 106.9 yrs £-12,207
7 kW 6071 kWh 4432 kWh 1639 kWh £0 £164 £164 £16,644 101.5 yrs £-13,366
8 kW 6938 kWh 5065 kWh 1873 kWh £0 £187 £187 £18,272 97.5 yrs £-14,526

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

10 kWh battery 5 kW example → Annual benefit: £108, Upfront: £15,139, Break-even: 139.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1734 kWh 1301 kWh 434 kWh £0 £43 £43 £10,256 236.5 yrs £-9,388
3 kW 2602 kWh 1951 kWh 650 kWh £0 £65 £65 £11,883 182.7 yrs £-10,582
4 kW 3469 kWh 2602 kWh 867 kWh £0 £87 £87 £13,511 155.8 yrs £-11,777
5 kW 4336 kWh 3252 kWh 1084 kWh £0 £108 £108 £15,139 139.7 yrs £-12,971
6 kW 5203 kWh 3903 kWh 1301 kWh £0 £130 £130 £16,767 128.9 yrs £-14,165
7 kW 6071 kWh 4553 kWh 1518 kWh £0 £152 £152 £18,394 121.2 yrs £-15,359
8 kW 6938 kWh 5203 kWh 1734 kWh £0 £173 £173 £20,022 115.4 yrs £-16,553

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, battery £/kWh = 700.

13.5 kWh battery 5 kW example → Annual benefit: £100, Upfront: £17,589, Break-even: 176.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1734 kWh 1336 kWh 399 kWh £0 £40 £40 £12,706 318.5 yrs £-11,908
3 kW 2602 kWh 2003 kWh 598 kWh £0 £60 £60 £14,333 239.5 yrs £-13,137
4 kW 3469 kWh 2671 kWh 798 kWh £0 £80 £80 £15,961 200.1 yrs £-14,365
5 kW 4336 kWh 3339 kWh 997 kWh £0 £100 £100 £17,589 176.4 yrs £-15,594
6 kW 5203 kWh 4007 kWh 1197 kWh £0 £120 £120 £19,217 160.6 yrs £-16,823
7 kW 6071 kWh 4674 kWh 1396 kWh £0 £140 £140 £20,844 149.3 yrs £-18,052
8 kW 6938 kWh 5342 kWh 1596 kWh £0 £160 £160 £22,472 140.8 yrs £-19,281

Assumptions: south-facing, sensible tilt; self-use shares from site rules; export at 10p baseline. Costs: panels £/kW = 1,628, 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.

Before you request quotes in Mid Ulster

Use the numbers above to sanity-check installer quotes. The main things to compare are system size, battery assumptions, payback claims, MCS certification, DNO paperwork and export assumptions.

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Check what MCS certification means

Understand DNO, G98 and G99 export limits

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Want a quote sanity check for BT45?

Share the first part of your postcode and a few basics. We’ll help you check whether system size, battery, export and paperwork assumptions look sensible before you commit to installer conversations.

This is a practical sanity-check request, not an instant quote promise. The Blue Ape quote route above remains available if you already want installer introductions.

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Insights for BT45

Figures below are tailored to BT45 — click through for full league tables.

Aspect Penalty View ranking →
East −20.3% West −19.7%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in BT45

Monthly generation per kilowatt of solar panels

kWh 27 Jan 44 Feb 75 Mar 104 Apr 117 May 109 Jun 104 Jul 97 Aug 76 Sep 55 Oct 36 Nov 23 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 43.3% of an average month (Dec–Feb)

Best / worst month: May / Dec

These figures show output per kilowatt (kW) of panels installed. In winter, a 1 kW system here produces about 31 kWh per month; the average month produces around 72 kWh. So a typical 4 kW home system would generate roughly 125 kWh in winter, or 289 kWh in an average month.

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,

Installation costs: DESNZ/MCS data, March 2026 (TIC)

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