Winter will become more tolerable for the inhabitants of the Halls Gap Zoo as the facility's energy capacity doubles.
Zoo manager Mark Treweek said that the works included installing a second transformer and upgrading infrastructure on June 22 and 23.
The boost will mean Treweek and his team can focus on other areas, such as building more enclosures, and adding more heated areas.
Heat is vital for the zoo during winter, with many animals requiring heating to be comfortable.
Currently, heating is required for the five residents of the primate complex and seven smaller monkeys, as well as the crocodile, reptile, and nocturnal enclosures.
Mr Treweek said the zoo often loses power in winter, as the energy required to heat enclosures, on top of the usual power to run a zoo, is too much for the system.
"We'd basically overload the system," Mr Treweek said.
"Without these upgrades in we'd be having outages again all winter. Especially in the morning when everything gets turned on.
"What they're doing is going to allow us to keep expanding and adding to our collection.
"There's things that we want to do, that we haven't been able to do because of the (power) issue."
Mr Treweek couldn't say much about the expansions, but said there were a "few, exciting developments" coming up.
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