When Grain Belt Express starts construction in 2026
Grain Belt Express is a planned 800 mile power line that would carry electricity from wind and solar farms in Kansas across Missouri, Illinois and Indiana. This year, construction actually starts on only part of it. Developer Invenergy says work begins in 2026 on Phase 1, the roughly 530 mile stretch between Kansas and Missouri, while the remaining route into Illinois and Indiana is approved by the regulator in each state but has no construction start date of its own yet. The full line is meant to carry 5,000 megawatts of power, a measure of how much electricity it can move at once, which the developer compares to about 4 nuclear reactors worth of new supply, connecting grids that serve 40% of Americans and 25% of Department of Defense facilities.
The 270 mile figure is a subtraction performed for this article, the 530 mile first phase taken from the 800 mile approved route, since no source states the remaining distance directly. Phase 1 has a stated 2026 construction start. The Illinois and Indiana segments do not yet have one.
Show the numbers
| Phase 1, Kansas to Missouri, 2026 start | 530 |
| Remaining route, Illinois and Indiana, no start date yet | 270 |
Why the project is moving now, a court ruling and a financing pivot
On January 23, 2026, the Illinois Supreme Court ruled 6 to 0 that Grain Belt Express can proceed, upholding the approval the state had already given the project. The court found that the company had presented substantial evidence it is capable of financing the proposed construction without significant adverse financial consequence, according to the Engineering News Record report on the ruling. The decision removed the last outstanding legal challenge to the project, brought by the Illinois Farm Bureau and landowners in the south of the state, who argued state approval would let the developer use eminent domain, the legal power to take private land for a project even when the owner does not want to sell, for a line that gives Illinois itself no direct benefit.
The court win came after a financial setback. In July 2025, the federal government canceled a 4.9 billion dollar loan guarantee the project had been counting on, and Grain Belt Express is now proceeding on private financing instead. Even before the court ruled, the developer had already signed 1.7 billion dollars in construction contracts with United States contractors Quanta Services and Kiewit Energy Group in May 2025, and had landowner easement agreements for Phase 1 worth more than 105 million dollars in total, with 19 million dollars already paid to landowners and 86 million dollars due once construction actually starts.
This announcement shows once again how much Missouri can contribute to big infrastructure projects like this transmission line.
Jon Patterson, Missouri Speaker of the House, quoted on the contractor award announcement. Source 3.
These are 2 separate, unrelated sums, a construction contract awarded and a federal loan guarantee the project did not receive, shown together only to compare their scale.
Show the numbers
| Contractor award 2025 | 1.7 |
| Federal loan guarantee lost | 4.9 |
What construction now means for jobs and bills
Phase 1 alone is projected to create more than 4,000 jobs, and the full project more than 5,500 jobs directly, according to the developer. Grain Belt Express projects the new line will save consumers in Kansas, Missouri, Illinois and Indiana, the 4 states the route crosses, a combined 11.3 billion dollars in energy costs over 15 years once it is running, including 4.3 billion dollars for Illinois and 12.8 million dollars a year split among 39 Missouri municipal utilities.
Indiana approved the project back in 2013, so the last state holding up construction was Illinois, whose court fight just ended. Neither Illinois nor Indiana yet has a construction start date of its own, which is why Phase 1, breaking ground in 2026, is the only part of Grain Belt Express with a firm start.