Updates

Follow the data.

New data and updates — no noise. We'll let you know when something worth knowing happens.

New South Wales · Postcode 2120

Pennant Hills solar & clean energy data

2,311 solar installations registered with the Clean Energy Regulator · ranked top 25% in New South Wales · data current as at 2026-04-03

Pennant Hills
Ranked top 25% for solar uptake in New South Wales
#156
in New South Wales
2,311
Total solar installs
182
Installed last 12 months
-19%
12-month growth
Monthly solar installations · past 12 months
12 months agoThis month
319
Home batteries
13.8%
Of solar homes have battery
Cheaper Home Batteries Program · from Jul 2025
22,310
tonnes CO₂/yr
Estimated annual carbon avoided by Pennant Hills's 2,311 solar systems combined — equivalent to taking 10,624 cars off the road.
Community total, not per household. Estimated from avg 9kW system size × NSW grid emissions factor.
Compared to neighbouring postcodes
2120
2,311
#156 state
you
2121
2,687
#127 state
Epping
2119
1,335
#252 state
Beecroft
2118
2,702
#125 state
Carlingford
2122
2,432
#138 state
Eastwood
2117
1,901
#191 state
Granville
New South Wales grid · community impact

Based on last week's New South Wales grid mix (avg 790 gCO₂/kWh), Pennant Hills's 2,311 solar systems typically avoid around 13.97 tonnes of CO₂ every hour during peak generation.

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

Pennant Hills sits in the top third of New South Wales for solar uptake, ranking 156th in the state out of 721 postcodes in the Clean Energy Regulator dataset. New installations eased in the past 12 months (182 systems, 19% below the previous year), a natural slowdown after earlier periods of stronger uptake.

The combined impact is substantial: Pennant Hills's solar community avoids an estimated 22,310 tonnes of CO₂ every year — equivalent to taking 10,624 cars off the road or powering around 4,462 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 · Pennant Hills
182 installs · May – Apr
15
7
13
10
18
14
20
10
18
35
12
10
← Browse all postcodes