Half of Victoria’s energy could come from renewable sources such as wind, solar and hydro power within 12 years, if the Andrews government is re-elected.

The Age can reveal that Labor will promise to raise Victoria’s renewable energy target from 40 per cent to 50 per cent by 2030 if it wins this month’s election.

The move would enhance Labor's green credentials and cement the state's transition away from coal as its primary power source.

Victoria has already legislated renewable energy targets of 25 per cent by 2020 and 40 per cent by 2025, although the Coalition has promised to scrap the targets if it wins the November 24 election.