Generation
See also: List of power stations in New ZealandIn 2011, New Zealand generated 43,138 gigawatt-hours (GWh) of electricity. The electricity generated in 2011 was 57.6% hydroelectricity, 18.4% natural gas, 13.4% geothermal, 4.7% coal, 4.5% wind, 1.4% other sources. The installed generating capacity of New Zealand (all sources) as of December 2011 was 9,751 megawatts (MW), composed of 53.8% hydroelectricity, 19.9% natural gas, 9.4% coal, 7.5% geothermal, 6.3% wind, 1.7% oil, and 1.3% other sources (mainly biogas, waste heat and wood). Note that some power stations can use more than one fuel, so their capacity has been split in line with the amount of electricity generated by each fuel.
Comparing the two main islands, nearly all South Island's electricity is generated by hydroelectricity - 98.3 percent in 2011 - with much of the remainder being generated by wind power. The North Island meanwhile has a wider spread of generation sources - 31.2 percent of generation in 2010 was from natural gas, 29.4 percent from hydroelectricity, 22.6 percent from geothermal, 7.9 percent from coal, 6.5 percent from wind, and the remainder mainly from bioenergy.
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Read more about this topic: Electricity Sector In New Zealand
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