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New South Wales · Postcode 2519

Wollongong solar & clean energy data

2,000 solar installations registered with the Clean Energy Regulator · ranked top 50% in New South Wales · data current as at 2026-04-03

Wollongong
Ranked top 50% for solar uptake in New South Wales
#183
in New South Wales
2,000
Total solar installs
118
Installed last 12 months
-21%
12-month growth
Monthly solar installations · past 12 months
12 months agoThis month
169
Home batteries
8.5%
Of solar homes have battery
Cheaper Home Batteries Program · from Jul 2025
19,308
tonnes CO₂/yr
Estimated annual carbon avoided by Wollongong's 2,000 solar systems combined — equivalent to taking 9,194 cars off the road.
Community total, not per household. Estimated from avg 9kW system size × NSW grid emissions factor.
Compared to neighbouring postcodes
2519
2,000
#183 state
you
2518
2,336
#151 state
Corrimal
2520
7
#620 state
Wollongong
2517
1,902
#190 state
Wollongong
2516
1,044
#294 state
Bulli
2515
2,027
#181 state
Thirroul
New South Wales grid · community impact

Based on last week's New South Wales grid mix (avg 790 gCO₂/kWh), Wollongong's 2,000 solar systems typically avoid around 12.09 tonnes of CO₂ every hour during peak generation.

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

Wollongong sits in the top third of New South Wales for solar uptake, ranking 183rd in the state out of 721 postcodes in the Clean Energy Regulator dataset. New installations eased in the past 12 months (118 systems, 21% below the previous year), a natural slowdown after earlier periods of stronger uptake.

The combined impact is substantial: Wollongong's solar community avoids an estimated 19,308 tonnes of CO₂ every year — equivalent to taking 9,194 cars off the road or powering around 3,862 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 · Wollongong
118 installs · May – Apr
12
10
5
13
7
9
6
14
12
11
9
10
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