Global nuclear generating capacity increased slightly worldwide in 2014 as five new reactors began supplying electricity and one shut down.

The year 2015 begins with 436 operable reactors and a total nuclear generating capacity of some 377.7 GWe, compared to 435 reactors and a generating capacity of 375.3 last year.

China connected three new reactors to the grid in 2014, and both Russia and Argentina also added one reactor each. Construction also started on three nuclear units in 2014, in addition to construction on the second unit of the Ostrovets nuclear power plant in Belarus and on the third unit of the Barakah plant in the United Arab Emirates. The data was reported by the World Nuclear Association.

Japan continues to face challenges following the 2011 earthquake and tsunami which damaged so many of its nuclear facilities. At Japan’s Fukushima Daiichi plant, units 5 and 6 were decommissioned in 2014. As of the end of 2014, all 48 of Japan’s reactors remained shut down pending regulatory reviews.

The only reactor closure in 2014 was in the U.S.— Entergy Corp. shut down its Vermont Yankee plant after 42 years in service.

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