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Solar panel cost in Newry, Mourne and Down (BT33)

See realistic solar installation costs, savings and payback for BT33 (Newry, Mourne and Down) 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
30.3 years
After this, it's pure profit
Upfront Cost
£9,767
What you pay to get started
Annual Benefit
£322
What you save every year
Profit Over 25 Years
£-1,711
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 895 kWh/kW — 96 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 895 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)
895 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: £269, Upfront: £8,139, Break-even: 30.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1790 kWh 716 kWh 1074 kWh £0 £107 £107 £3,256 30.3 yrs £-1,107
3 kW 2685 kWh 1074 kWh 1611 kWh £0 £161 £161 £4,883 30.3 yrs £-1,661
4 kW 3580 kWh 1432 kWh 2148 kWh £0 £215 £215 £6,511 30.3 yrs £-2,215
5 kW 4476 kWh 1790 kWh 2685 kWh £0 £269 £269 £8,139 30.3 yrs £-2,768
6 kW 5371 kWh 2148 kWh 3222 kWh £0 £322 £322 £9,767 30.3 yrs £-3,322
7 kW 6266 kWh 2506 kWh 3759 kWh £0 £376 £376 £11,394 30.3 yrs £-3,875
8 kW 7161 kWh 2864 kWh 4296 kWh £0 £430 £430 £13,022 30.3 yrs £-4,429

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: £179, Upfront: £10,239, Break-even: 57.2 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1790 kWh 1074 kWh 716 kWh £0 £72 £72 £5,356 74.8 yrs £-3,923
3 kW 2685 kWh 1611 kWh 1074 kWh £0 £107 £107 £6,983 65.0 yrs £-4,835
4 kW 3580 kWh 2148 kWh 1432 kWh £0 £143 £143 £8,611 60.1 yrs £-5,747
5 kW 4476 kWh 2685 kWh 1790 kWh £0 £179 £179 £10,239 57.2 yrs £-6,658
6 kW 5371 kWh 3222 kWh 2148 kWh £0 £215 £215 £11,867 55.2 yrs £-7,570
7 kW 6266 kWh 3759 kWh 2506 kWh £0 £251 £251 £13,494 53.8 yrs £-8,482
8 kW 7161 kWh 4296 kWh 2864 kWh £0 £286 £286 £15,122 52.8 yrs £-9,393

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: £134, Upfront: £11,639, Break-even: 86.7 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1790 kWh 1253 kWh 537 kWh £0 £54 £54 £6,756 125.8 yrs £-5,681
3 kW 2685 kWh 1880 kWh 806 kWh £0 £81 £81 £8,383 104.1 yrs £-6,772
4 kW 3580 kWh 2506 kWh 1074 kWh £0 £107 £107 £10,011 93.2 yrs £-7,863
5 kW 4476 kWh 3133 kWh 1343 kWh £0 £134 £134 £11,639 86.7 yrs £-8,954
6 kW 5371 kWh 3759 kWh 1611 kWh £0 £161 £161 £13,267 82.3 yrs £-10,044
7 kW 6266 kWh 4386 kWh 1880 kWh £0 £188 £188 £14,894 79.2 yrs £-11,135
8 kW 7161 kWh 5013 kWh 2148 kWh £0 £215 £215 £16,522 76.9 yrs £-12,226

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: £121, Upfront: £13,389, Break-even: 110.8 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1790 kWh 1307 kWh 483 kWh £0 £48 £48 £8,506 176.0 yrs £-7,539
3 kW 2685 kWh 1960 kWh 725 kWh £0 £73 £73 £10,133 139.8 yrs £-8,683
4 kW 3580 kWh 2614 kWh 967 kWh £0 £97 £97 £11,761 121.7 yrs £-9,828
5 kW 4476 kWh 3267 kWh 1208 kWh £0 £121 £121 £13,389 110.8 yrs £-10,972
6 kW 5371 kWh 3921 kWh 1450 kWh £0 £145 £145 £15,017 103.6 yrs £-12,116
7 kW 6266 kWh 4574 kWh 1692 kWh £0 £169 £169 £16,644 98.4 yrs £-13,261
8 kW 7161 kWh 5227 kWh 1933 kWh £0 £193 £193 £18,272 94.5 yrs £-14,405

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: £112, Upfront: £15,139, Break-even: 135.3 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1790 kWh 1343 kWh 448 kWh £0 £45 £45 £10,256 229.1 yrs £-9,360
3 kW 2685 kWh 2014 kWh 671 kWh £0 £67 £67 £11,883 177.0 yrs £-10,541
4 kW 3580 kWh 2685 kWh 895 kWh £0 £90 £90 £13,511 150.9 yrs £-11,721
5 kW 4476 kWh 3357 kWh 1119 kWh £0 £112 £112 £15,139 135.3 yrs £-12,901
6 kW 5371 kWh 4028 kWh 1343 kWh £0 £134 £134 £16,767 124.9 yrs £-14,081
7 kW 6266 kWh 4699 kWh 1566 kWh £0 £157 £157 £18,394 117.4 yrs £-15,261
8 kW 7161 kWh 5371 kWh 1790 kWh £0 £179 £179 £20,022 111.8 yrs £-16,442

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: £103, Upfront: £17,589, Break-even: 170.9 yrs
System Annual output Self-use Exported Bill saving Export income Annual benefit Upfront cost Break-even 20-year net
2 kW 1790 kWh 1378 kWh 412 kWh £0 £41 £41 £12,706 308.6 yrs £-11,882
3 kW 2685 kWh 2068 kWh 618 kWh £0 £62 £62 £14,333 232.1 yrs £-13,098
4 kW 3580 kWh 2757 kWh 823 kWh £0 £82 £82 £15,961 193.8 yrs £-14,314
5 kW 4476 kWh 3446 kWh 1029 kWh £0 £103 £103 £17,589 170.9 yrs £-15,530
6 kW 5371 kWh 4135 kWh 1235 kWh £0 £124 £124 £19,217 155.6 yrs £-16,746
7 kW 6266 kWh 4825 kWh 1441 kWh £0 £144 £144 £20,844 144.6 yrs £-17,962
8 kW 7161 kWh 5514 kWh 1647 kWh £0 £165 £165 £22,472 136.4 yrs £-19,178

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 Newry, Mourne and Down

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 BT33

Figures below are tailored to BT33 — click through for full league tables.

Aspect Penalty View ranking →
East −22.0% West −19.6%
Typical output loss versus a south-facing roof (lower is better)

Seasonal solar output in BT33

Monthly generation per kilowatt of solar panels

kWh 26 Jan 44 Feb 79 Mar 106 Apr 121 May 117 Jun 111 Jul 100 Aug 81 Sep 56 Oct 33 Nov 22 Dec
Best month Worst month Winter (Dec–Feb) Other months

Winter output: 41.0% 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 75 kWh. So a typical 4 kW home system would generate roughly 122 kWh in winter, or 298 kWh in an average month.

Your Area at a Glance

Your Electricity Rate
0.00p/kWh
Daily Fixed Charge
0.00p/day
Local Sunshine
895kWh/kW
A 1 kW system generates ~895 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

Newry, Mourne and Down (100%)

Areas Covered

Donard, Murlough, Dundrum, Tollymore, Annalong

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

BT31 (Newry, Mourne and Down)
≈6.5 km away
Local sunshine: ~916 kWh/kWp · +2% vs BT33
BT30 (Newry, Mourne and Down)
≈17.1 km away
Local sunshine: ~976 kWh/kWp · +9% vs BT33
BT24 (Newry, Mourne and Down)
≈21.0 km away
Local sunshine: ~917 kWh/kWp · +2% vs BT33
BT34 (Newry, Mourne and Down)
≈22.2 km away
Local sunshine: ~898 kWh/kWp · +0% vs BT33
BT25 (Armagh City, Banbridge and Craigavon)
≈26.2 km away
Local sunshine: ~886 kWh/kWp · -1% vs BT33
BT32 (Armagh City, Banbridge and Craigavon)
≈28.2 km away
Local sunshine: ~889 kWh/kWp · -1% vs BT33

Similar sunshine across the UK

SA18 (Carmarthenshire)
~895 kWh/kWp · +0% vs BT33
S33 (High Peak)
~896 kWh/kWp · +0% vs BT33
KY4 (Fife)
~896 kWh/kWp · +0% vs BT33