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New South Wales · Postcode 2500

Wollongong solar & clean energy data

2,742 solar installations registered with the Clean Energy Regulator · ranked top 25% in New South Wales · data current as at 2026-04-03

Wollongong
Ranked top 25% for solar uptake in New South Wales
#119
in New South Wales
2,742
Total solar installs
175
Installed last 12 months
-33%
12-month growth
Monthly solar installations · past 12 months
12 months agoThis month
200
Home batteries
7.3%
Of solar homes have battery
Cheaper Home Batteries Program · from Jul 2025
26,471
tonnes CO₂/yr
Estimated annual carbon avoided by Wollongong's 2,742 solar systems combined — equivalent to taking 12,605 cars off the road.
Community total, not per household. Estimated from avg 9kW system size × NSW grid emissions factor.
Compared to neighbouring postcodes
2500
2,742
#119 state
you
2502
1,398
#245 state
Wollongong
2505
681
#377 state
Port Kembla
2506
895
#314 state
Wollongong
2508
1,292
#262 state
2508
2490
211
#519 state
Murwillumbah
New South Wales grid · community impact

Based on last week's New South Wales grid mix (avg 790 gCO₂/kWh), Wollongong's 2,742 solar systems typically avoid around 16.57 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 119th in the state out of 721 postcodes in the Clean Energy Regulator dataset. New installations eased in the past 12 months (175 systems, 33% 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 26,471 tonnes of CO₂ every year — equivalent to taking 12,605 cars off the road or powering around 5,294 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
175 installs · May – Apr
21
13
11
8
8
22
16
15
20
16
18
7
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