The Illinois Supreme Court has agreed to review the Rock Island Clean Line project.
The proposed power line would transmit electricity generated from wind farms beginning in northwest Iowa through Illinois' Bureau and LaSalle counties.
The LaSalle News-Tribune reports the project was approved by the Illinois Commerce Commission, but rejected by the Third Appellate Court for not meeting the criteria of a public utility.
Opponents have said that such a designation would grant the project eminent domain rights.
A representative of Clean Line Energy Partners told WNIJ News that there was no request for eminent domain authority before the Illinois Commerce Commission.
Interested parties must file briefs with the court by December 28, and reply briefs are due 35 days later. Oral arguments will then be scheduled in the spring.