Follow Us We are first in your inbox with the most important news in the industry―keeping you smarter and one-step ahead in this ever-changing and competitive market.Start your free subscription DOE Picks More ARDP Winners; One or More Advanced Nuclear Demonstrations Will Be in Washington State The Department of Energy (DOE) has chosen five assorted advanced nuclear reactor concepts under the second Advanced Reactor Demonstration Program (ARDP) risk reduction pathway. TerraPower and X-energy, which the DOE chose to support under the first ARDP pathway, are looking at siting their advanced nuclear demonstrations in Washington State, the DOE said.