Green energy to dominate by power grid by 2040 as ageing stations retire

The government's energy policy adviser says renewable energy sources will dominate the national power grid by 2040 as ageing coal-fired stations are retired. 

"Designing the grid of the future" - blueprint from AEMC

Australian Energy Marketing Commission chairman John Pierce says regulators are now planning for the transition to renewables which will see the equivalent of today's national energy market coming from renewable sources by 2040. 

John Pierce speaks with ABC's Peter Ryan.