More changes are on the way for the electricity sector, as power prices continue to rise

The Electricity Authority's proposing new measures to stop the big four electricity companies giving their own retail arms preferential treatment.

The Government's lifting restrictions to allow lines companies to invest more in electricity generation.

And Meridian Energy Chief Financial Officer Mike Roan says the sector's also looking at how they can shore up energy supplies, after being caught out by the gas shortage.

He says they're scrambling, dusting off old contingency plans from 10 to 15 years ago.