1998 – national electricity market is established

2005 – AEMC is established and assumes responsibility for rule making and market development for the operation of the electricity wholesale market and transmission regulation.

2008 – AEMC’s role expands to economic regulation of:

• electricity distribution network services
• gas transmission and distribution services
• natural gas pipeline access.

2009 – AEMC’s role expands to:

• gas retail functions
• Victoria’s declared wholesale market.

2010 – Western Australia joins national gas regulatory scheme.

• AEMC’s role expands to include gas Short Term Trading Markets
• Energy ministers endorse new National Energy Customer Framework.

2012 - AEMC assumes responsibility for the National Energy Retail Rules under the Ministerial Council on Energy’s National Energy Customer Framework package of reforms.