Winter electricity bill subsidies announced by Liberals as election campaign moves through its last week

Energy Minister Guy Barnett will announce the supplement on Wednesday which he said would cut power bulls by $125 per household.

Mr Barnett said the supplement was part of the government's plan to reduce cost of living for Tasmanians and put downward pressure on power prices.

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He said the supplement would not only reduce power bills, but reduce the chance of bill shock.

Labor's David O'Byrne repeatedly called for the government to establish a supplement to help people pay for their power bills last winter during the coronavirus pandemic - a call which was ignored by the government.

In addition to the supplement, Mr Barnett said the government would in its next term relaunch the $30 million Energy Efficiency Loans Scheme program over two years.

The scheme provides no-interest loans over 36 months to businesses and households to purchase products that would reduce energy consumption.

Mr Barnett said the government would boost the No Interest Loan Scheme's Energy Saver Loan and Subsidy Scheme to $2 million over the forward estimates.

The Liberals announced on Tuesday it would double the energy production capacity on the Tarraleah power scheme if returned to government after Saturday.

Premier Peter Gutwein said the state government would commit $635 million to the project and the federal government $65 million to build a new 220 megawatt power station.

He said construction of the four-year project would start in 2022 and would initially create 100 jobs.

Mr Gutwein said this would increase to 250 jobs during the peak of construction.

He said the new power station, which would have up to 24 hours energy storage, and existing hydroelectricity infrastructure statewide put the state in a good position to embrace opportunities in the emerging hydrogen industry and the nationwide transition to cleaner energy sources.

Mr Barnett said the Tarraleah project would contribute to the state's energy security and the government's ambition for downward pressure on energy prices.