Electricity supply in south-west Victoria could remain substandard as planned upgrade is hamstrung WedWednesday 6 updated ThuThursday 7 JanJanuary 2021 at 2:40am Bruce Knowles' dairy farm is located close to a wind farm, yet his dairy is connected to a single-phase powerline. ( Print text only Cancel A thousand electricity customers in south-west Victoria could be stuck with a substandard supply unless a stalemate is overcome. Key points: They currently have single-phase power, but say three-phase is needed to advance industry Powercor has scrapped the project from its five-year plan Electricity distributors must apply to the Australian Energy Regulator (AER) every five years for a determination on their revenue requirements.