Billions of dollars of collective profits being made by New Zealand's top four electricity providers have prompted claims from the consumer watchdog that the system is broken.
In the last year, Mercury Energy made $841 million before tax, Meridian Energy made $783 million, and Genesis Energy made $523.5 million - all of which are part-owned by the government.
Contact Energy, the only privately owned company of the four, made $573 million before tax.
Contact Energy chief executive Mike Fuge spoke to Ingrid Hipkiss.
