Melbourne Solar Data · solar adoption

How rooftop solar has grown in Victoria.

Explore recorded rooftop-solar installation activity and capacity from the Clean Energy Regulator. Search a Victorian postcode to see its history without pretending postcode totals describe every individual home.

Solar snapshot: Postcode 3909

Source data through 31 August 2026. Current and previous installation years are provisional because Small-scale Technology Certificates can be created for up to 12 months after installation.

Recorded installations1,921certificate-backed installation events
Recorded capacity11.4 MWrated output recorded by CER
Average recorded capacity6.0 kWcapacity ÷ installation events; not a median
2026 installations47provisional through 31 August 2026

What this measures: these figures are recorded Small-scale Renewable Energy Scheme installation events, not a count of unique homes. The CER data includes new systems, upgrades and stand-alone systems.

Installation history

The chart is a visual summary of the same yearly values shown in the table below. Lighter bars indicate provisional years.

Recorded installation events by year

Postcode 3909
Bar chart showing annual Clean Energy Regulator solar installation events. The current and previous year are provisional and can increase.011923720082013201820232026
Annual solar installation and recorded capacity data for Postcode 3909
YearInstallationsCapacityAverage recorded capacityStatus
2026470.4 MW9.1 kWProvisional
2025870.8 MW9.8 kWProvisional
20241141.0 MW8.4 kWValidated
20231341.1 MW8.4 kWValidated
20221171.0 MW8.9 kWValidated
20211591.1 MW6.9 kWValidated
20201380.8 MW6.1 kWValidated
2019880.8 MW9.2 kWValidated
20181060.9 MW8.9 kWValidated
2017560.4 MW6.5 kWValidated
2016420.2 MW5.1 kWValidated
2015960.4 MW4.3 kWValidated
20141180.5 MW3.9 kWValidated
20131280.5 MW3.7 kWValidated
20122370.8 MW3.5 kWValidated
20111880.5 MW2.6 kWValidated
2010590.1 MW1.9 kWValidated
200950.0 MW1.2 kWValidated
200820.0 MW1.3 kWValidated

How to read these numbers

An “installation” here is a certificate-backed installation event. Because upgrades are included, it should not be used as a household solar-penetration rate. Average recorded capacity is a derived ratio of rated capacity to installation events; the aggregate source does not support a true median system size.

Source and methodology

Clean Energy Regulator: Small-scale installation postcode data

Data through 31 August 2026.

Open the original CER dataset ↗

Based on Clean Energy Regulator material licensed under CC BY 4.0. Melbourne Solar Guide groups the monthly postcode records into annual figures using the method described on the methodology page.