New Zealand - Electricity production from hydroelectric sources (% of total)

Electricity production from hydroelectric sources (% of total) in New Zealand was 55.49 as of 2015. Its highest value over the past 55 years was 85.39 in 1967, while its lowest value was 50.95 in 2008.

Definition: Sources of electricity refer to the inputs used to generate electricity. Hydropower refers to electricity produced by hydroelectric power plants.

Source: IEA Statistics © OECD/IEA 2014 (http://www.iea.org/stats/index.asp), subject to https://www.iea.org/t&c/termsandconditions/

See also:

Year Value
1960 79.75
1961 79.37
1962 84.44
1963 75.66
1964 79.04
1965 80.38
1966 81.83
1967 85.39
1968 84.46
1969 78.02
1970 81.41
1971 84.75
1972 81.05
1973 77.25
1974 75.40
1975 82.05
1976 69.57
1977 66.84
1978 72.94
1979 84.65
1980 83.77
1981 83.24
1982 72.03
1983 76.24
1984 73.28
1985 71.08
1986 76.25
1987 75.81
1988 77.49
1989 70.68
1990 71.85
1991 68.75
1992 64.12
1993 68.54
1994 74.13
1995 76.35
1996 71.78
1997 62.67
1998 67.31
1999 60.60
2000 62.25
2001 54.78
2002 61.21
2003 57.92
2004 63.35
2005 54.28
2006 54.06
2007 54.03
2008 50.95
2009 55.74
2010 55.08
2011 56.48
2012 51.74
2013 53.26
2014 55.88
2015 55.49

Development Relevance: Electrical energy from hydropower is derived from turbines being driven by flowing water in rivers, with or without man-made dams forming reservoirs. Presently, hydropower is the world's largest source of renewable electricity. Hydropower represents the largest share of renewable electricity production. It was second only to wind power for new-built capacities between 2005 and 2010. IEA estimates that hydropower could produce up to 6,000 terawatt-hours in 2050, roughly twice as much as today. Hydropower's storage capacity and fast response characteristics are especially valuable to meet sudden fluctuations in electricity demand and to match supply from less flexible electricity sources and variable renewable sources, such as solar photovoltaic (PV) and wind power. Use of energy is important in improving people's standard of living. But electricity generation also can damage the environment. Whether such damage occurs depends largely on how electricity is generated. For example, burning coal releases twice as much carbon dioxide - a major contributor to global warming - as does burning an equivalent amount of natural gas. Anthropogenic carbon dioxide emissions result primarily from fossil fuel combustion and cement manufacturing. In combustion different fossil fuels release different amounts of carbon dioxide for the same level of energy use: oil releases about 50 percent more carbon dioxide than natural gas, and coal releases about twice as much. Nuclear energy does not generate carbon dioxide emissions, but it produces other dangerous waste products.

Limitations and Exceptions: IEA occasionally revises its time series to reflect political changes. For example, the IEA has constructed historical energy statistics for countries of the former Soviet Union. In addition, energy statistics for other countries have undergone continuous changes in coverage or methodology in recent years as more detailed energy accounts have become available. Breaks in series are therefore unavoidable.

Statistical Concept and Methodology: Electricity production is total number of kWh generated by power plants separated into electricity plants and CHP plants. The International Energy Agency (IEA) compiles data on energy inputs used to generate electricity. IEA data for countries that are not members of the Organisation for Economic Co-operation and Development (OECD) are based on national energy data adjusted to conform to annual questionnaires completed by OECD member governments. In addition, estimates are sometimes made to complete major aggregates from which key data are missing, and adjustments are made to compensate for differences in definitions. The IEA makes these estimates in consultation with national statistical offices, oil companies, electric utilities, and national energy experts.

Aggregation method: Weighted average

Periodicity: Annual

General Comments: Electricity production shares may not sum to 100 percent because other sources of generated electricity (such as geothermal, solar, and wind) are not shown. Restricted use: Please contact the International Energy Agency for third-party use of these data.

Classification

Topic: Environment Indicators

Sub-Topic: Energy production & use