Queenslanders will save up to $300 for buying energy-efficient appliances under a new power-saving rebate.

Premier Annastacia Palaszczuk announced the energy-saving rebate in the lead-up to the November 25 state election, and will apply to four-, or five-star energy-rated appliances bought from January 1.

“If your old clunkers are on their last legs, these rebates will help cut the cost of new, more efficient replacements,” Queensland Energy Minister Anthony Lynham said in a statement on Wednesday.

Dr Lynham said appliances accounted for nearly half of household energy use.

“Old, inefficient appliances could be adding more to your power bill than they need to.”

Households will receive a $200 rebate for energy-efficient washing machines, $250 for fridges, and $300 for air-conditioners bought after January 1. Rebates are limited to one per household.

“You’ll consume less energy, you’ll save money on your energy bills, and you’ll help reduce carbon emissions,” Dr Lynham said.

“Households can save up to $50 a year by using an energy-efficient refrigerator or washing machine and up to $135 per year with an energy- efficient air-conditioner.”