Reactors under construction. Of the 56 new reactors under construction worldwide, 39 are in Asia. Source: IAEA PRIS Database

Nuclear power now supplies about 11 percent of the world’s electricity, with 12 countries using nuclear power for at least 30 percent of their national electricity generation. There are 449 operational nuclear power reactors in 30 countries, with 56 others under construction in 15 countries.

These are among the findings in the IAEA Country Nuclear Power Profiles edition for 2017, which documents the status and development of nuclear power programs worldwide as of the end of 2017.

Organizational and industrial aspects of nuclear power initiatives, including information about relevant legislative, regulatory and international framework, are covered for 50 countries.

Statistical data about nuclear plant operations, energy and electricity use are drawn from national contributions as well as IAEA data bases and World Development Indicators of the World Bank.

The 2017 edition outlines activities and summaries of 30 countries with nuclear power programs, 14 of which are actively expanding their fleets and six others considering possible expansion. Two newcomers are planning to start operating their first nuclear power reactors in 2018: Belarus and the United Arab Emirates.