Ararat police discovered a crop house in Ararat on Tuesday afternoon.
The discovery comes after Ararat Police intercepted a vehicle and found 40kg of cannabis about midnight on Monday.
As a result from enquiries, Ararat CIU discovered a sophisticated hydroponic set-up at a property in Lambert Street.
Ararat Detective Senior Constable Mal Wineberg said there was about 150-200 plants located at the property.
"The set-up was of commercial quantity," he said
"No further arrests have been made at this stage.
"We've located an illegal bypass for power. We are still making enquiries at this stage."
RELATED NEWS: 40kg of cannabis found in car at Ararat
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