Clean Line Energy Partners has started an open solicitation process, looking for customers to use it’s proposed Grain Belt Express power lines.

The project would wind-generated electricity from Kansas to Missouri, Illinois, Indiana and points east.

The controversial project still faces regulatory hurdles, but the Federal Energy Regulatory Commission last year granted it authority to sell transmission capacity to potential customers. That would include companies in Kansas that generate the wind power.

The 750-mile direct current transmission line would deliver 3.5 gigawatts of capacity. The project is expected to cost about two billion dollars.

A delivery converter station in Missouri would allow delivery about 500 megawatts of energy.