Nuclear power plant of future may be floating

MURMANSK, Russia — Along the shore of Kola Bay in the far northwest of Russia lie bases for the country’s nuclear submarines and icebreakers. Low, rocky hills descend to an industrial waterfront of docks, cranes and railway tracks. Out on the bay, submarines have for decades stalked the azure waters, traveling between their port and the ocean depths.

Here, Russia is conducting an experiment with nuclear power, one that backers say is a leading-edge feat of engineering but that critics call reckless.

The country is unveiling a floating nuclear power plant.

Tied to a wharf in the city of Murmansk, the Akademik Lomonosov rocks gently in the waves. The buoyant facility, made of two miniature reactors of a type used previously on submarines, is for now the only one of its kind.

Moscow, while leading the trend, is far from alone in seeing potential in floating nuclear plants. Two state-backed companies in China are building such facilities, and U.S. scientists have drawn up plans of their own. Proponents say they are cheaper, greener and, perhaps counterintuitively, safer. They envision a future when nuclear power stations bob off the coasts of major cities around the world.

“They are light-years ahead of us,” Jacopo Buongiorno, a professor of nuclear engineering at the Massachusetts Institute of Technology, said of the Russian floating power program.