The 750-mile direct current transmission line will deliver energy from western Kansas to Missouri, Illinois, Indiana, and states farther east.
A delivery converter station located near the Maywood 345 kV substation in Missouri will allow the project to deliver about 500MW of energy.
The project will also provide about 3,500MW of energy at the Sullivan Substation near the Illinois-Indiana border with the help of another delivery converter station in Clark County.
Construction on the Grain Belt line, which is currently under development, is expected to start as early as 2017 with planned energization in 2019.
Upon completion, the project will generate enough energy for about 1.4 million homes per year.
Clean Line Energy president Michael Skelly said: "We are excited to begin the open solicitation process to allocate capacity to customers. This marks an important milestone towards building transmission infrastructure in Kansas, Missouri, Illinois and Indiana."
In May 2014, the Federal Energy Regulatory Commission (FERC) granted the developer authority to negotiate rates for the project under a policy statement it issued in January 2013.
Clean Line Energy has recently selected Southwire Company as the preferred supplier for a wire that will be used as the metallic return for the Grain Belt Express project.
Southwire will source components for the power line project from its facility in Flora, Illinois.
Image: The Grain Belt Express transmission project will generate enough energy for about 1.4 million homes per year. Photo: Courtesy of twobee/FreeDigitalPhotos.net.