RICHLAND, Wash. (AP) — A Maryland-based nuclear energy company has signed a partnership agreement this week with a public utility company in Washington state to develop, build and operate a commercial advanced nuclear power reactor. The Tri-City Herald reported Thursday that X-energy of Rockville, Maryland, will work with Energy Northwest and Grant County Public Utility District to build an 80-megawatt reactor at the Hanford nuclear reservation in eastern Washington. Advanced reactors help transition the nation away from fossil fuels. The TRi Energy Partnership said such reactors complement intermittent renewable resources, such as wind and solar.