The US Department of Energy on Friday announced a partnership between Japan's SoftBank Group and electric utility AEP to build a colossal gas-fired power plant and data center on federal land in Ohio.The arrangement, which would involve building a 10-gigawatt artificial intelligence server warehouse, is part of ?a wider Washington-Tokyo trade ?deal. SB ?Energy, a unit of SoftBank, plans to connect a 9.2-gigawatt gas plant to the local grid and power the new data center ?at the federally owned Portsmouth site in Pike County, Ohio.If constructed, the gas plant and data center would be among the ?world's largest. One gigawatt...