Consumer New Zealand says householders are throwing away millions of dollars by not shopping around for cheaper energy providers.
The Electricity Authority's found average households could have saved $150-dollars last year by switching retailers - saving $240-million nationwide.
Consumer NZ chief executive, Sue Chetwin, says a new 'What's My Number' website's been set up to make it easier for people to estimate potential savings.
Sue Chetwin says a large family in Christchurch could save over $900-dollars a year while a medium sized household in Wellington could save as much as $500-dollars.
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