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Solar panel cost in Antrim and Newtownabbey (BT39)

See realistic solar installation costs, savings and payback for BT39 (Antrim and Newtownabbey) 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
30.8 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£317
What you save every year
Profit Over 25 Years
£-1,834
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 881 kWh/kW — 109 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 881 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)
881 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: £264, Upfront: £8,139, Break-even: 30.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1763 kWh 705 kWh 1058 kWh £0 £106 £106 £3,256 30.8 yrs £-1,140
3 kW 2644 kWh 1058 kWh 1586 kWh £0 £159 £159 £4,883 30.8 yrs £-1,710
4 kW 3525 kWh 1410 kWh 2115 kWh £0 £212 £212 £6,511 30.8 yrs £-2,281
5 kW 4407 kWh 1763 kWh 2644 kWh £0 £264 £264 £8,139 30.8 yrs £-2,851
6 kW 5288 kWh 2115 kWh 3173 kWh £0 £317 £317 £9,767 30.8 yrs £-3,421
7 kW 6169 kWh 2468 kWh 3702 kWh £0 £370 £370 £11,394 30.8 yrs £-3,991
8 kW 7051 kWh 2820 kWh 4230 kWh £0 £423 £423 £13,022 30.8 yrs £-4,561

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: £176, Upfront: £10,239, Break-even: 58.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1763 kWh 1058 kWh 705 kWh £0 £71 £71 £5,356 76.0 yrs £-3,945
3 kW 2644 kWh 1586 kWh 1058 kWh £0 £106 £106 £6,983 66.0 yrs £-4,868
4 kW 3525 kWh 2115 kWh 1410 kWh £0 £141 £141 £8,611 61.1 yrs £-5,791
5 kW 4407 kWh 2644 kWh 1763 kWh £0 £176 £176 £10,239 58.1 yrs £-6,713
6 kW 5288 kWh 3173 kWh 2115 kWh £0 £212 £212 £11,867 56.1 yrs £-7,636
7 kW 6169 kWh 3702 kWh 2468 kWh £0 £247 £247 £13,494 54.7 yrs £-8,559
8 kW 7051 kWh 4230 kWh 2820 kWh £0 £282 £282 £15,122 53.6 yrs £-9,481

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: £132, Upfront: £11,639, Break-even: 88.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1763 kWh 1234 kWh 529 kWh £0 £53 £53 £6,756 127.7 yrs £-5,698
3 kW 2644 kWh 1851 kWh 793 kWh £0 £79 £79 £8,383 105.7 yrs £-6,797
4 kW 3525 kWh 2468 kWh 1058 kWh £0 £106 £106 £10,011 94.7 yrs £-7,896
5 kW 4407 kWh 3085 kWh 1322 kWh £0 £132 £132 £11,639 88.0 yrs £-8,995
6 kW 5288 kWh 3702 kWh 1586 kWh £0 £159 £159 £13,267 83.6 yrs £-10,094
7 kW 6169 kWh 4319 kWh 1851 kWh £0 £185 £185 £14,894 80.5 yrs £-11,193
8 kW 7051 kWh 4936 kWh 2115 kWh £0 £212 £212 £16,522 78.1 yrs £-12,292

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: £119, Upfront: £13,389, Break-even: 112.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1763 kWh 1287 kWh 476 kWh £0 £48 £48 £8,506 178.7 yrs £-7,554
3 kW 2644 kWh 1930 kWh 714 kWh £0 £71 £71 £10,133 141.9 yrs £-8,705
4 kW 3525 kWh 2574 kWh 952 kWh £0 £95 £95 £11,761 123.6 yrs £-9,857
5 kW 4407 kWh 3217 kWh 1190 kWh £0 £119 £119 £13,389 112.5 yrs £-11,009
6 kW 5288 kWh 3860 kWh 1428 kWh £0 £143 £143 £15,017 105.2 yrs £-12,161
7 kW 6169 kWh 4504 kWh 1666 kWh £0 £167 £167 £16,644 99.9 yrs £-13,313
8 kW 7051 kWh 5147 kWh 1904 kWh £0 £190 £190 £18,272 96.0 yrs £-14,465

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: £110, Upfront: £15,139, Break-even: 137.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1763 kWh 1322 kWh 441 kWh £0 £44 £44 £10,256 232.7 yrs £-9,374
3 kW 2644 kWh 1983 kWh 661 kWh £0 £66 £66 £11,883 179.8 yrs £-10,561
4 kW 3525 kWh 2644 kWh 881 kWh £0 £88 £88 £13,511 153.3 yrs £-11,748
5 kW 4407 kWh 3305 kWh 1102 kWh £0 £110 £110 £15,139 137.4 yrs £-12,935
6 kW 5288 kWh 3966 kWh 1322 kWh £0 £132 £132 £16,767 126.8 yrs £-14,123
7 kW 6169 kWh 4627 kWh 1542 kWh £0 £154 £154 £18,394 119.3 yrs £-15,310
8 kW 7051 kWh 5288 kWh 1763 kWh £0 £176 £176 £20,022 113.6 yrs £-16,497

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: £101, Upfront: £17,589, Break-even: 173.5 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1763 kWh 1357 kWh 405 kWh £0 £41 £41 £12,706 313.4 yrs £-11,895
3 kW 2644 kWh 2036 kWh 608 kWh £0 £61 £61 £14,333 235.7 yrs £-13,117
4 kW 3525 kWh 2715 kWh 811 kWh £0 £81 £81 £15,961 196.8 yrs £-14,339
5 kW 4407 kWh 3393 kWh 1014 kWh £0 £101 £101 £17,589 173.5 yrs £-15,562
6 kW 5288 kWh 4072 kWh 1216 kWh £0 £122 £122 £19,217 158.0 yrs £-16,784
7 kW 6169 kWh 4750 kWh 1419 kWh £0 £142 £142 £20,844 146.9 yrs £-18,006
8 kW 7051 kWh 5429 kWh 1622 kWh £0 £162 £162 £22,472 138.6 yrs £-19,229

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 Antrim and Newtownabbey

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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Understand DNO, G98 and G99 export limits

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Insights for BT39

Figures below are tailored to BT39 — click through for full league tables.

Aspect Penalty View ranking →
East −19.8% West −19.9%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in BT39

Monthly generation per kilowatt of solar panels

kWh 26 Jan 43 Feb 77 Mar 106 Apr 119 May 112 Jun 108 Jul 99 Aug 78 Sep 54 Oct 36 Nov 22 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 41.8% 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 73 kWh. So a typical 4 kW home system would generate roughly 123 kWh in winter, or 294 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
0.00p/kWh
Daily Fixed Charge
0.00p/day
Local Sunshine
881kWh/kW
A 1 kW system generates ~881 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

Antrim and Newtownabbey (94%)|Mid and East Antrim (6%)

Areas Covered

Ballynure, Doagh, Ballyrobert, Templepatrick, Ballyclare East, Ballyclare West, Parkgate, Kilwaughter + 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

BT36 (Antrim and Newtownabbey)
≈8.7 km away
Local sunshine: ~879 kWh/kWp · -0% vs BT39
BT37 (Antrim and Newtownabbey)
≈10.6 km away
Local sunshine: ~871 kWh/kWp · -1% vs BT39
BT41 (Antrim and Newtownabbey)
≈13.3 km away
Local sunshine: ~866 kWh/kWp · -2% vs BT39
BT38 (Mid and East Antrim)
≈13.4 km away
Local sunshine: ~896 kWh/kWp · +2% vs BT39
BT14 (Belfast)
≈15.0 km away
Local sunshine: ~886 kWh/kWp · +1% vs BT39
BT15 (Belfast)
≈15.2 km away
Local sunshine: ~886 kWh/kWp · +1% vs BT39

Similar sunshine across the UK

DG2 (Dumfries and Galloway)
~881 kWh/kWp · +0% vs BT39
DG1 (Dumfries and Galloway)
~881 kWh/kWp · +0% vs BT39
M22 (Manchester)
~881 kWh/kWp · -0% vs BT39