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TerraPower advances plans for next-gen nuclear power

BELLEVUE, Wash. — TerraPower, the nuclear energy venture that’s backed by Microsoft co-founder Bill Gates, has gotten a boost on two fronts in its campaign to pioneer a new generation of safer, less expensive reactors.

On Aug. 24, the Idaho National Laboratory announced that an industry team including TerraPower has been selected to begin contract negotiations to design and build the Versatile Test Reactor, a federally financed facility that’s meant to test advanced nuclear reactor technologies. The team is led by Bechtel National Inc., with GE Hitachi Nuclear Energy among the other industry partners. (Pacific Northwest National Laboratory is on the concept development team.)

“We received excellent proposals from industry, which is indicative of the support to build a fast-spectrum neutron testing facility in the United States,” Mark Peters, director of the Idaho Falls lab, said in a news release. “We are excited about the potential for working with the BNI-led team.”

The plan calls for work on the project to begin in 2021, and for the reactor to be completed by as early as 2026.

Then, on Aug. 27, the Bellevue-based venture announced that it’s working with GE Hitachi on a reactor architecture that could supplement solar and wind energy systems with always-on electricity.

The system architecture, known as Natrium, would involve building cost-competitive, sodium fast reactors as well as molten-salt energy storage systems. The heat generated by the 345-megawatt reactors could be stored in the molten-salt tanks, and converted into grid electricity to smooth out fluctuations in renewable energy.

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By Alan Boyle

Mastermind of Cosmic Log, contributing editor at GeekWire, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.

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