The company has identified more than $3bn of transmission investment opportunities that could be completed in the two states over the next 10 to 15 years.

Thomas Voss, chairman, president and CEO of Ameren, said: “ATX will invest in transmission that will improve reliability, improve access to renewable energy resources, enhance the efficiency of regional energy markets, help pave the way to a smarter grid, and bring significant jobs and other economic benefits to the region.”

While Ameren’s regulated local electric utilities will continue to own existing transmission facilities and related new assets, ATX will invest in and own new major transmission projects.

Ameren also said that it is filing a petition with the Federal Energy Regulatory Commission (FERC) for pre-approval of certain rate treatments for its proposed initial portfolio of transmission projects, the Grand Rivers projects, a collection of high voltage transmission projects in Missouri and Illinois representing a combined investment opportunity of over $1.3bn.