Some critics worry the change would create conflicts of interest as the agency promotes and regulates projects.
The 423-megawatt project would be among the largest in the country but it hinges on an interconnection deal.
The state’s largest utility is teaming up with a Finnish company to explore using hydrogen to make methanol.
Critics say the Omaha Public Power District should follow other utilities’ lead and commit to absolute carbon reduction instead.
If a narrow lead in one race holds, clean energy supporters will sweep an election for three Omaha utility board seats.