Transformer Explosion Closes Nuclear Plant Unit North of NYC

Reuters reports that a transformer failure and related fire have forced the closure of a generating unit of the Indian Point nuclear plant, about 40 miles north of New York City; another generator at the same facility was unaffected. Witnesses reported seeing an explosion, as well as (according to NBC News) a "huge ball of black smoke" when the transformer exploded, which led to the shut-down of the site's Unit 3. The Reuters article says the plant "has long been controversial because of its proximity to the United States' largest city. Indian Point is one of 99 nuclear power plants licensed to operate in the United States and which generate about 20 percent of U.S. electricity use, according to the U.S. Nuclear Regulatory Commission website.