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Solar panel cost in Antrim and Newtownabbey (BT37)

See realistic solar installation costs, savings and payback for BT37 (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
31.1 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£314
What you save every year
Profit Over 25 Years
£-1,927
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 871 kWh/kW — 120 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 871 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)
871 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: 31.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1742 kWh 697 kWh 1045 kWh £0 £105 £105 £3,256 31.1 yrs £-1,165
3 kW 2613 kWh 1045 kWh 1568 kWh £0 £157 £157 £4,883 31.1 yrs £-1,748
4 kW 3484 kWh 1394 kWh 2090 kWh £0 £209 £209 £6,511 31.1 yrs £-2,330
5 kW 4355 kWh 1742 kWh 2613 kWh £0 £261 £261 £8,139 31.1 yrs £-2,913
6 kW 5226 kWh 2090 kWh 3136 kWh £0 £314 £314 £9,767 31.1 yrs £-3,495
7 kW 6097 kWh 2439 kWh 3658 kWh £0 £366 £366 £11,394 31.1 yrs £-4,078
8 kW 6968 kWh 2787 kWh 4181 kWh £0 £418 £418 £13,022 31.1 yrs £-4,660

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: 58.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1742 kWh 1045 kWh 697 kWh £0 £70 £70 £5,356 76.9 yrs £-3,962
3 kW 2613 kWh 1568 kWh 1045 kWh £0 £105 £105 £6,983 66.8 yrs £-4,893
4 kW 3484 kWh 2090 kWh 1394 kWh £0 £139 £139 £8,611 61.8 yrs £-5,824
5 kW 4355 kWh 2613 kWh 1742 kWh £0 £174 £174 £10,239 58.8 yrs £-6,755
6 kW 5226 kWh 3136 kWh 2090 kWh £0 £209 £209 £11,867 56.8 yrs £-7,686
7 kW 6097 kWh 3658 kWh 2439 kWh £0 £244 £244 £13,494 55.3 yrs £-8,616
8 kW 6968 kWh 4181 kWh 2787 kWh £0 £279 £279 £15,122 54.3 yrs £-9,547

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: £131, Upfront: £11,639, Break-even: 89.1 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1742 kWh 1219 kWh 523 kWh £0 £52 £52 £6,756 129.3 yrs £-5,710
3 kW 2613 kWh 1829 kWh 784 kWh £0 £78 £78 £8,383 106.9 yrs £-6,815
4 kW 3484 kWh 2439 kWh 1045 kWh £0 £105 £105 £10,011 95.8 yrs £-7,921
5 kW 4355 kWh 3049 kWh 1307 kWh £0 £131 £131 £11,639 89.1 yrs £-9,026
6 kW 5226 kWh 3658 kWh 1568 kWh £0 £157 £157 £13,267 84.6 yrs £-10,131
7 kW 6097 kWh 4268 kWh 1829 kWh £0 £183 £183 £14,894 81.4 yrs £-11,236
8 kW 6968 kWh 4878 kWh 2090 kWh £0 £209 £209 £16,522 79.0 yrs £-12,341

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: £118, Upfront: £13,389, Break-even: 113.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1742 kWh 1272 kWh 470 kWh £0 £47 £47 £8,506 180.8 yrs £-7,565
3 kW 2613 kWh 1908 kWh 706 kWh £0 £71 £71 £10,133 143.6 yrs £-8,722
4 kW 3484 kWh 2543 kWh 941 kWh £0 £94 £94 £11,761 125.0 yrs £-9,880
5 kW 4355 kWh 3179 kWh 1176 kWh £0 £118 £118 £13,389 113.9 yrs £-11,037
6 kW 5226 kWh 3815 kWh 1411 kWh £0 £141 £141 £15,017 106.4 yrs £-12,194
7 kW 6097 kWh 4451 kWh 1646 kWh £0 £165 £165 £16,644 101.1 yrs £-13,352
8 kW 6968 kWh 5087 kWh 1881 kWh £0 £188 £188 £18,272 97.1 yrs £-14,509

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: 139.0 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1742 kWh 1307 kWh 436 kWh £0 £44 £44 £10,256 235.5 yrs £-9,384
3 kW 2613 kWh 1960 kWh 653 kWh £0 £65 £65 £11,883 181.9 yrs £-10,577
4 kW 3484 kWh 2613 kWh 871 kWh £0 £87 £87 £13,511 155.1 yrs £-11,769
5 kW 4355 kWh 3266 kWh 1089 kWh £0 £109 £109 £15,139 139.0 yrs £-12,961
6 kW 5226 kWh 3920 kWh 1307 kWh £0 £131 £131 £16,767 128.3 yrs £-14,153
7 kW 6097 kWh 4573 kWh 1524 kWh £0 £152 £152 £18,394 120.7 yrs £-15,346
8 kW 6968 kWh 5226 kWh 1742 kWh £0 £174 £174 £20,022 114.9 yrs £-16,538

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: 175.6 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1742 kWh 1341 kWh 401 kWh £0 £40 £40 £12,706 317.1 yrs £-11,904
3 kW 2613 kWh 2012 kWh 601 kWh £0 £60 £60 £14,333 238.5 yrs £-13,131
4 kW 3484 kWh 2683 kWh 801 kWh £0 £80 £80 £15,961 199.2 yrs £-14,358
5 kW 4355 kWh 3354 kWh 1002 kWh £0 £100 £100 £17,589 175.6 yrs £-15,585
6 kW 5226 kWh 4024 kWh 1202 kWh £0 £120 £120 £19,217 159.9 yrs £-16,812
7 kW 6097 kWh 4695 kWh 1402 kWh £0 £140 £140 £20,844 148.6 yrs £-18,040
8 kW 6968 kWh 5366 kWh 1603 kWh £0 £160 £160 £22,472 140.2 yrs £-19,267

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 BT37

Figures below are tailored to BT37 — click through for full league tables.

Aspect Penalty View ranking →
East −20.4% West −20.3%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in BT37

Monthly generation per kilowatt of solar panels

kWh 29 Jan 45 Feb 76 Mar 104 Apr 117 May 111 Jun 105 Jul 95 Aug 76 Sep 54 Oct 34 Nov 25 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 45.6% 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 33 kWh per month; the average month produces around 73 kWh. So a typical 4 kW home system would generate roughly 132 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
871kWh/kW
A 1 kW system generates ~871 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 (100%)

Areas Covered

Whitehouse, Monkstown, Rostulla, Abbey, Jordanstown, Rathcoole, O'Neill, Valley + 3 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)
≈3.2 km away
Local sunshine: ~879 kWh/kWp · +1% vs BT37
BT15 (Belfast)
≈6.2 km away
Local sunshine: ~886 kWh/kWp · +2% vs BT37
BT3 (Belfast)
≈6.5 km away
Local sunshine: ~885 kWh/kWp · +2% vs BT37
BT18 (Ards and North Down)
≈6.5 km away
Local sunshine: ~918 kWh/kWp · +5% vs BT37
BT14 (Belfast)
≈7.1 km away
Local sunshine: ~886 kWh/kWp · +2% vs BT37
BT99 (Belfast)
≈8.2 km away
Local sunshine: ~885 kWh/kWp · +2% vs BT37

Similar sunshine across the UK

NE19 (Northumberland)
~871 kWh/kWp · -0% vs BT37
BL2 (Bolton)
~871 kWh/kWp · -0% vs BT37
KY13 (Perth and Kinross)
~871 kWh/kWp · +0% vs BT37