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CER installation records · ABS 2021 Census · Postal Area approximations

Data & methodology

About the evidence

This tool brings area-level installation records together with housing data. It describes places. Individual household tenure and solar access require separate evidence.

CER installation records

Recorded solar capacity and battery installations come from postcode records. Battery coverage starts in July 2025. Recent periods are provisional as certificate claims are completed.

ABS 2021 Census

Renter and apartment shares use the 2021 Census occupied private dwelling totals in G37. Uptake measures use the published G36 private dwelling total, which includes unoccupied dwellings and excludes non-classifiable households from its occupied count. The fixed tenure pilot uses Census dwelling records linked to SRES installation records.

Geography and council estimates

Postal Areas approximate postcodes. For cross-boundary areas, council estimates allocate recorded capacity and installations by the share of 2021 Mesh Block dwellings on each side.

Interpreting the measures

Solar capacity per dwelling is an area ratio. The two automatic rules compare five nearby housing profiles using renter and apartment shares. The alternative gives apartment share twice the weight in the squared distance. Peer comparisons describe area-level associations.

Connect an external MCP client

Use Streamable HTTP at https://loots.dwaq.me/mcp. Try compare_housing_peers with a published release ID and the same area, period and rule as Compare.

CER data ↗ABS Census data ↗Release index ↗Open the 2021 pilot →