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Solar panel cost in Antrim and Newtownabbey (BT29)

See realistic solar installation costs, savings and payback for BT29 (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
31.2 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£313
What you save every year
Profit Over 25 Years
£-1,948
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 869 kWh/kW — 122 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 869 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)
869 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: £261, Upfront: £8,139, Break-even: 31.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1737 kWh 695 kWh 1042 kWh £0 £104 £104 £3,256 31.2 yrs £-1,171
3 kW 2606 kWh 1042 kWh 1564 kWh £0 £156 £156 £4,883 31.2 yrs £-1,756
4 kW 3475 kWh 1390 kWh 2085 kWh £0 £208 £208 £6,511 31.2 yrs £-2,341
5 kW 4343 kWh 1737 kWh 2606 kWh £0 £261 £261 £8,139 31.2 yrs £-2,927
6 kW 5212 kWh 2085 kWh 3127 kWh £0 £313 £313 £9,767 31.2 yrs £-3,512
7 kW 6081 kWh 2432 kWh 3648 kWh £0 £365 £365 £11,394 31.2 yrs £-4,097
8 kW 6949 kWh 2780 kWh 4170 kWh £0 £417 £417 £13,022 31.2 yrs £-4,683

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: £174, Upfront: £10,239, Break-even: 58.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1737 kWh 1042 kWh 695 kWh £0 £69 £69 £5,356 77.1 yrs £-3,966
3 kW 2606 kWh 1564 kWh 1042 kWh £0 £104 £104 £6,983 67.0 yrs £-4,898
4 kW 3475 kWh 2085 kWh 1390 kWh £0 £139 £139 £8,611 62.0 yrs £-5,831
5 kW 4343 kWh 2606 kWh 1737 kWh £0 £174 £174 £10,239 58.9 yrs £-6,764
6 kW 5212 kWh 3127 kWh 2085 kWh £0 £208 £208 £11,867 56.9 yrs £-7,697
7 kW 6081 kWh 3648 kWh 2432 kWh £0 £243 £243 £13,494 55.5 yrs £-8,630
8 kW 6949 kWh 4170 kWh 2780 kWh £0 £278 £278 £15,122 54.4 yrs £-9,563

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: 89.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1737 kWh 1216 kWh 521 kWh £0 £52 £52 £6,756 129.6 yrs £-5,713
3 kW 2606 kWh 1824 kWh 782 kWh £0 £78 £78 £8,383 107.2 yrs £-6,820
4 kW 3475 kWh 2432 kWh 1042 kWh £0 £104 £104 £10,011 96.0 yrs £-7,926
5 kW 4343 kWh 3040 kWh 1303 kWh £0 £130 £130 £11,639 89.3 yrs £-9,033
6 kW 5212 kWh 3648 kWh 1564 kWh £0 £156 £156 £13,267 84.8 yrs £-10,139
7 kW 6081 kWh 4257 kWh 1824 kWh £0 £182 £182 £14,894 81.6 yrs £-11,246
8 kW 6949 kWh 4865 kWh 2085 kWh £0 £208 £208 £16,522 79.2 yrs £-12,352

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: 114.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1737 kWh 1268 kWh 469 kWh £0 £47 £47 £8,506 181.3 yrs £-7,567
3 kW 2606 kWh 1902 kWh 704 kWh £0 £70 £70 £10,133 144.0 yrs £-8,726
4 kW 3475 kWh 2537 kWh 938 kWh £0 £94 £94 £11,761 125.4 yrs £-9,885
5 kW 4343 kWh 3171 kWh 1173 kWh £0 £117 £117 £13,389 114.2 yrs £-11,043
6 kW 5212 kWh 3805 kWh 1407 kWh £0 £141 £141 £15,017 106.7 yrs £-12,202
7 kW 6081 kWh 4439 kWh 1642 kWh £0 £164 £164 £16,644 101.4 yrs £-13,361
8 kW 6949 kWh 5073 kWh 1876 kWh £0 £188 £188 £18,272 97.4 yrs £-14,519

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: £109, Upfront: £15,139, Break-even: 139.4 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1737 kWh 1303 kWh 434 kWh £0 £43 £43 £10,256 236.1 yrs £-9,387
3 kW 2606 kWh 1955 kWh 652 kWh £0 £65 £65 £11,883 182.4 yrs £-10,580
4 kW 3475 kWh 2606 kWh 869 kWh £0 £87 £87 £13,511 155.5 yrs £-11,774
5 kW 4343 kWh 3258 kWh 1086 kWh £0 £109 £109 £15,139 139.4 yrs £-12,967
6 kW 5212 kWh 3909 kWh 1303 kWh £0 £130 £130 £16,767 128.7 yrs £-14,161
7 kW 6081 kWh 4561 kWh 1520 kWh £0 £152 £152 £18,394 121.0 yrs £-15,354
8 kW 6949 kWh 5212 kWh 1737 kWh £0 £174 £174 £20,022 115.2 yrs £-16,547

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: 176.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1737 kWh 1338 kWh 400 kWh £0 £40 £40 £12,706 318.0 yrs £-11,906
3 kW 2606 kWh 2007 kWh 599 kWh £0 £60 £60 £14,333 239.1 yrs £-13,135
4 kW 3475 kWh 2676 kWh 799 kWh £0 £80 £80 £15,961 199.7 yrs £-14,363
5 kW 4343 kWh 3344 kWh 999 kWh £0 £100 £100 £17,589 176.1 yrs £-15,591
6 kW 5212 kWh 4013 kWh 1199 kWh £0 £120 £120 £19,217 160.3 yrs £-16,819
7 kW 6081 kWh 4682 kWh 1399 kWh £0 £140 £140 £20,844 149.0 yrs £-18,047
8 kW 6949 kWh 5351 kWh 1598 kWh £0 £160 £160 £22,472 140.6 yrs £-19,275

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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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 BT29

Figures below are tailored to BT29 — click through for full league tables.

Aspect Penalty View ranking →
East −20.0% West −19.6%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in BT29

Monthly generation per kilowatt of solar panels

kWh 26 Jan 43 Feb 75 Mar 106 Apr 118 May 111 Jun 107 Jul 97 Aug 76 Sep 55 Oct 34 Nov 22 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 41.7% 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 30 kWh per month; the average month produces around 72 kWh. So a typical 4 kW home system would generate roughly 121 kWh in winter, or 290 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
0.00p/kWh
Daily Fixed Charge
0.00p/day
Local Sunshine
869kWh/kW
A 1 kW system generates ~869 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 (70%)|Lisburn and Castlereagh (30%)

Areas Covered

Aldergrove, Glenavy, Crumlin, Clady, Stonyford

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

BT41 (Antrim and Newtownabbey)
≈11.6 km away
Local sunshine: ~866 kWh/kWp · -0% vs BT29
BT17 (Belfast)
≈14.5 km away
Local sunshine: ~886 kWh/kWp · +2% vs BT29
BT28 (Lisburn and Castlereagh)
≈14.7 km away
Local sunshine: ~895 kWh/kWp · +3% vs BT29
BT11 (Belfast)
≈14.8 km away
Local sunshine: ~884 kWh/kWp · +2% vs BT29
BT67 (Armagh City, Banbridge and Craigavon)
≈16.1 km away
Local sunshine: ~890 kWh/kWp · +3% vs BT29
BT10 (Belfast)
≈16.2 km away
Local sunshine: ~884 kWh/kWp · +2% vs BT29

Similar sunshine across the UK

BL0 (Bury)
~869 kWh/kWp · -0% vs BT29
M6 (Salford)
~869 kWh/kWp · -0% vs BT29
PA61 (Argyll and Bute)
~869 kWh/kWp · +0% vs BT29