Switchboard Upgrades in Berwick

Berwick was a small agricultural town before its rapid urban growth from the 1970s, and its population tripled in less than 15 years to 2011. That gives two kinds of switchboard job: original boards near the old township along High Street, and boards in later estates that are newer but already full, with no room for the circuits households now want.

Postcode 3806, shared with Harkaway, has 8996 small-scale solar installations since 2001 and 2350 air source heat pumps, and both need protected circuits and space on the board. AusNet Services approves solar export and supply upgrades here. With 46.2% of homes owned with a mortgage at the 2021 Census, many upgrades come with a renovation or extension, which is the time to calculate maximum demand properly so a new kitchen, a heat pump and an EV charger can share one supply. Gas reaches streets in Berwick on the Australian Gas Networks system, and households electrifying one appliance at a time should size the board for the end point.