The owner of the state's gas and electricity retail business, Alinta Energy, has recorded a $577 million loss after tax for the 2010 financial year, mainly due to a full year impairment charge of $670 million.

The owner of the state's gas and electricity retail business, Alinta Energy, has recorded a $577 million loss after tax for the 2010 financial year, mainly due to a full year impairment charge of $670 million.