<Tr> <Th> Responsibility for regulation </Th> <Td> Electricity Authority Commerce Commission </Td> </Tr> <Tr> <Th> Electricity sector law </Th> <Td> Electricity Act 1992 Electricity Industry Act 2010 </Td> </Tr> <P> The electricity sector in New Zealand uses mainly renewable energy sources such as hydropower, geothermal power and increasingly wind energy . 80% of energy for electricity generation is from renewable sources, making New Zealand one of the lowest carbon dioxide emitting countries in terms of electricity generation . Electricity demand has grown by an average of 2.1% per year from 1974 to 2010 but decreased by 1.2% from 2010 to 2013 . </P> <P> Regulation of the electricity market is the responsibility of the Electricity Authority (formerly the Electricity Commission). Electricity lines businesses, including Transpower and the distribution lines companies, are regulated by the Commerce Commission . Control is also exerted by the Minister of Energy in the New Zealand Cabinet, though the Minister for State - Owned Enterprises and the Minister for Climate Change also have some powers by virtue of their positions and policy influence in the government . </P>

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