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New South Wales · Postcode 2125

West Pennant Hills solar & clean energy data

2,839 solar installations registered with the Clean Energy Regulator · ranked top 25% in New South Wales · data current as at 2026-04-03

West Pennant Hills
Ranked top 25% for solar uptake in New South Wales
#116
in New South Wales
2,839
Total solar installs
270
Installed last 12 months
+8%
12-month growth
Monthly solar installations · past 12 months
12 months agoThis month
461
Home batteries
16.2%
Of solar homes have battery
Cheaper Home Batteries Program · from Jul 2025
27,408
tonnes CO₂/yr
Estimated annual carbon avoided by West Pennant Hills's 2,839 solar systems combined — equivalent to taking 13,051 cars off the road.
Community total, not per household. Estimated from avg 9kW system size × NSW grid emissions factor.
Compared to neighbouring postcodes
2125
2,839
#116 state
you
2126
2,929
#112 state
Cherrybrook
2124
6
#625 state
2124
2127
267
#500 state
Newington
2123
1
#713 state
2123
2122
2,432
#138 state
Eastwood
New South Wales grid · community impact

Based on last week's New South Wales grid mix (avg 790 gCO₂/kWh), West Pennant Hills's 2,839 solar systems typically avoid around 17.16 tonnes of CO₂ every hour during peak generation.

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

West Pennant Hills sits in the top third of New South Wales for solar uptake, ranking 116th in the state out of 721 postcodes in the Clean Energy Regulator dataset. 270 new systems were installed in the past 12 months, a 8% increase on the previous year — steady growth consistent with continued community uptake.

The combined impact is substantial: West Pennant Hills's solar community avoids an estimated 27,408 tonnes of CO₂ every year — equivalent to taking 13,051 cars off the road or powering around 5,482 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 · West Pennant Hills
270 installs · May – Apr
12
22
10
20
26
17
21
24
35
54
12
17
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