A move that could dramatically reduce power bills for Perth residents is on the backburner, despite a similar process taking place in other parts of the state, so the government can appease unions, according to shadow energy minister Dean Nalder.

A move that could dramatically reduce power bills for Perth residents is on the backburner, despite a similar process taking place in other parts of the state, so the government can appease unions, according to shadow energy minister Dean Nalder.