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New South Wales · Postcode 2223

Mortdale solar & clean energy data

1,891 solar installations registered with the Clean Energy Regulator · ranked top 50% in New South Wales · data current as at 2026-04-03

Mortdale
Ranked top 50% for solar uptake in New South Wales
#193
in New South Wales
1,891
Total solar installs
164
Installed last 12 months
-2%
12-month growth
Monthly solar installations · past 12 months
12 months agoThis month
236
Home batteries
12.5%
Of solar homes have battery
Cheaper Home Batteries Program · from Jul 2025
18,256
tonnes CO₂/yr
Estimated annual carbon avoided by Mortdale's 1,891 solar systems combined — equivalent to taking 8,693 cars off the road.
Community total, not per household. Estimated from avg 9kW system size × NSW grid emissions factor.
Compared to neighbouring postcodes
2223
1,891
#193 state
you
2224
1,321
#255 state
Sylvania
2222
694
#372 state
Penshurst
2221
1,554
#228 state
Oatley
2225
643
#384 state
Como
2220
1,618
#219 state
Blakehurst
New South Wales grid · community impact

Based on last week's New South Wales grid mix (avg 790 gCO₂/kWh), Mortdale's 1,891 solar systems typically avoid around 11.43 tonnes of CO₂ every hour during peak generation.

Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly

Mortdale sits in the top third of New South Wales for solar uptake, ranking 193rd in the state out of 721 postcodes in the Clean Energy Regulator dataset. New installations eased in the past 12 months (164 systems, 2% below the previous year), a natural slowdown after earlier periods of stronger uptake.

The combined impact is substantial: Mortdale's solar community avoids an estimated 18,256 tonnes of CO₂ every year — equivalent to taking 8,693 cars off the road or powering around 3,651 average Australian homes with clean electricity. This is estimated using New South Wales's average grid emissions intensity of 790 gCO₂/kWh, sourced from OpenElectricity, applied to an average system size of 9kW.

Monthly solar installations · Mortdale
164 installs · May – Apr
15
10
6
1
10
16
17
18
22
26
9
14
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