Updates

Follow the data.

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

Victoria · Postcode 3931

Langwarrin solar & clean energy data

3,639 solar installations registered with the Clean Energy Regulator · ranked top 10% in Victoria · data current as at 2026-04-03

Langwarrin
Ranked top 10% for solar uptake in Victoria
#47
in Victoria
3,639
Total solar installs
157
Installed last 12 months
-27%
12-month growth
Monthly solar installations · past 12 months
12 months agoThis month
187
Home batteries
5.1%
Of solar homes have battery
Cheaper Home Batteries Program · from Jul 2025
43,580
tonnes CO₂/yr
Estimated annual carbon avoided by Langwarrin's 3,639 solar systems combined — equivalent to taking 20,752 cars off the road.
Community total, not per household. Estimated from avg 9kW system size × VIC grid emissions factor.
Compared to neighbouring postcodes
3931
3,639
#47 state
you
3930
2,592
#93 state
Frankston
3929
433
#375 state
Flinders
3933
200
#471 state
Langwarrin
3934
3,071
#77 state
Frankston
3928
141
#522 state
Red Hill
Victoria grid · community impact

Based on last week's Victoria grid mix (avg 980 gCO₂/kWh), Langwarrin's 3,639 solar systems typically avoid around 27.28 tonnes of CO₂ every hour during peak generation.

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

Langwarrin is one of Victoria's strongest solar communities, ranking 47th in the state — ahead of 93% of all Victoria postcodes tracked by the Clean Energy Regulator. New installations eased in the past 12 months (157 systems, 27% below the previous year), a natural slowdown after earlier periods of stronger uptake.

The combined impact is substantial: Langwarrin's solar community avoids an estimated 43,580 tonnes of CO₂ every year — equivalent to taking 20,752 cars off the road or powering around 8,716 average Australian homes with clean electricity. This is estimated using Victoria's average grid emissions intensity of 980 gCO₂/kWh, sourced from OpenElectricity, applied to an average system size of 9kW.

Monthly solar installations · Langwarrin
157 installs · May – Apr
12
10
15
9
11
10
13
16
12
27
11
11
← Browse all postcodes