New Zealand's electricity market is in the spotlight like never before. The Labour/ Green announcement last week of plans to fundamentally restructure the system has affected the partial sale of state owned Mighty River Power.
So how does the electricity market work? How are prices set and who pays for new lines, new generation or new forms of electricity production?
Carl Hansen is chief executive of the Electricity Authority, the agency responsible for running New Zealand's electricity market.
He joined us for a live chat, see below for the replay: