An independent sustainability coach has slammed parts of the City of Sydney’s Renewable Energy Plan adopted at a council meeting on Monday.

But Liberal councillor Edward Mandla has doubts about the capacity of the plan to reach its targets.

“You’re telling me it’s going to generate 100 per cent of its electricity for the LGA from renewable sources by 2030?” he asked. “It’s a bit farfetched.”

Mr Mandla moved an amendment to include the following statement on each page of the Master Plan: “The implementation of the Master Plan cannot be delivered by the city alone, and without regulatory change nor can the outcomes be realised in a short time frame.”

The amendment was supported by fellow Liberal Christine Forster but not by any other councillors.