New Zealand lies on the Pacific Ring of Fire, creating favourable geological conditions for the exploitation of geothermal power. Geothermal fields have been located across New Zealand, but at present, most geothermal power is generated within the Taupo Volcanic Zone - an area in the North Island stretching from Mount Ruapehu in the south to White Island in the north. As at December 2012, the installed capacity of geothermal power was 723 MW, and in 2013, geothermal generated 6,053 GWh of electricity - 15% of the country's electricity generation that year.