Victoria deserves praise for promising a rapid shift from coal to renewables. Now comes the hard part | Adam Morton

Reliability and emissions reduction goals are technically achievable, but cost is a separate question. Governments should be careful what they promise

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Transformations don't come much bigger than that proposed in Victoria by Daniel Andrews last week.

At the time of typing, about two-thirds of the electricity generated in Victoria comes from burning brown coal - basically mud - in old, sometimes failing, generators in the Latrobe Valley. It is the most polluting form of large-scale power generation.

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