The Government is looking into how it can transition towards a low emissions economy and move away from fossil fuels. Energy Link was commissioned by the Parliamentary Commissioner for the Environment to model the system-wide effects of four potential electricity pathways in New Zealand. Parts of the model look into storing hydroelectricity generated by Lake Onslow and closing the Tiwai Point aluminium smelter. The Parliamentary Commission for the Environment's chief economist, Geoff Simmons, spoke to Corin Dann.