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New South Wales · Postcode 2099

Collaroy solar & clean energy data

2,768 solar installations registered with the Clean Energy Regulator · ranked top 25% in New South Wales · data current as at 2026-04-03

Collaroy
Ranked top 25% for solar uptake in New South Wales
#118
in New South Wales
2,768
Total solar installs
181
Installed last 12 months
-29%
12-month growth
Monthly solar installations · past 12 months
12 months agoThis month
297
Home batteries
10.7%
Of solar homes have battery
Cheaper Home Batteries Program · from Jul 2025
26,722
tonnes CO₂/yr
Estimated annual carbon avoided by Collaroy's 2,768 solar systems combined — equivalent to taking 12,725 cars off the road.
Community total, not per household. Estimated from avg 9kW system size × NSW grid emissions factor.
Compared to neighbouring postcodes
2099
2,768
#118 state
you
2100
2,430
#139 state
Manly
2101
1,582
#222 state
Newport
2097
1,509
#231 state
Dee Why
2096
1,133
#282 state
Balgowlah
2102
895
#313 state
Mona Vale
New South Wales grid · community impact

Based on last week's New South Wales grid mix (avg 790 gCO₂/kWh), Collaroy's 2,768 solar systems typically avoid around 16.73 tonnes of CO₂ every hour during peak generation.

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

Collaroy sits in the top third of New South Wales for solar uptake, ranking 118th in the state out of 721 postcodes in the Clean Energy Regulator dataset. New installations eased in the past 12 months (181 systems, 29% below the previous year), a natural slowdown after earlier periods of stronger uptake.

The combined impact is substantial: Collaroy's solar community avoids an estimated 26,722 tonnes of CO₂ every year — equivalent to taking 12,725 cars off the road or powering around 5,344 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 · Collaroy
181 installs · May – Apr
12
10
11
6
21
18
16
23
17
20
16
11
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