Iceland - Electricity production from hydroelectric sources (% of total)

Electricity production from hydroelectric sources (% of total) in Iceland was 73.31 as of 2015. Its highest value over the past 55 years was 97.30 in 1978, while its lowest value was 70.08 in 2007.

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 95.46
1961 96.02
1962 95.97
1963 96.34
1964 96.33
1965 94.99
1966 92.92
1967 94.76
1968 94.79
1969 94.63
1970 96.17
1971 96.18
1972 96.10
1973 95.13
1974 96.58
1975 96.08
1976 96.90
1977 96.73
1978 97.30
1979 96.45
1980 96.95
1981 94.69
1982 94.83
1983 94.78
1984 95.02
1985 94.97
1986 94.41
1987 93.99
1988 94.04
1989 93.87
1990 93.22
1991 93.55
1992 94.81
1993 94.48
1994 94.46
1995 94.00
1996 93.15
1997 93.22
1998 89.49
1999 84.13
2000 82.72
2001 81.89
2002 82.90
2003 83.39
2004 82.73
2005 80.81
2006 73.44
2007 70.08
2008 75.47
2009 72.94
2010 73.81
2011 72.67
2012 70.30
2013 71.00
2014 71.04
2015 73.31

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