Huntly Power Station.

The minister of energy says the government's scrapping a planned power bill levy because he made the call that households should not have to pay to secure the country's electricity supply.

Simeon Brown is adamant the cost of shoring up supply should sit with generators instead, and changes announced on Tuesday could see power bills drop by hundreds of dollars each year.

Brown revealed the government would no longer introduce a power bill levy to fund a liquefied natural gas (LNG) import facility, which would be a fallback option in dry years when electricity generation is low.

The facility is going ahead, but the government's still working out how to pay for it.