The purposes of the study provided for under sections 70-1029 to 70-1033 shall include, but not be limited to, identification of electric transmission and generation constraints and opportunities, federal and state legal and regulatory requirements and practices, national and regional transmission operation, national and regional transmission plans and policies, national and regional markets for electricity export and opportunities for and barriers to exporting electricity to such markets, and economic development benefits of expanded state, regional, and national transmission connections.