The National Renewable Energy Laboratory study was pulled back by DOE headquarters, which called for more work on the findings.
A Missouri landowners group says the transmission line developers don’t meet the definition of a public utility.
Critics, including the U.S. EPA, say alternatives such as burying all or part of the line have not been fully explored.
Missouri regulators’ approval of the transmission project puts Kansas in a position for significant wind development.
The proposal includes about $80 million for heat pumps, energy efficiency, and electric vehicle infrastructure.