AGL says keeping Liddell power station open beyond 2022 could cost $900m

Coal-fired power station's general manager says plant should not be extended beyond 2022 and new coal power stations do not make sense

Keeping the Liddell coal-fired power station open beyond 2022, as Malcolm Turnbull has urged, could cost more than $900m, AGL says, with representatives of the energy company saying the station should be shut.

In a tour for journalists, in which AGL spoke about the problems facing the ageing power station, the company revealed an independent study conducted in 2013 estimated it would cost $900m to extend its life until 2032.