IDAES brings together the very best capabilities from the national laboratories and academia to enable the state-of-the-art design, investment, and operation support for the US electric power generation system. IDAES will create the computational systems required to enable the most effective design of individual components and complete power plants, enable their optimum performance over their full range of operating conditions, and identify preferred plant performance characteristics to maximize overall grid performance. IDAES will also provide the ability to assess and optimize changes to the grid and overall power generation system, including greater incorporation of renewable and variable hydroelectric resources and the potential replacement of nuclear resources while ensuring continuity of supply and reliability.