MISO has selected Ameren Transmission Co. of Illinois to build a third transmission project stemming from the RTO's long-range transmission portfolio.

MISO has chosen Ameren Transmission Co. of Illinois and Dairyland Power Cooperative to build the third and fourth competitive transmission projects emerging from its long-range transmission plan.

MISO has awarded  an Ameren subsidiary the lead in building the second competitively bid project stemming from its $10 billion long-range transmission plan.

Staff from the Illinois Commerce Commission put their own spin on an analysis showing how much Ameren’s switch to PJM could cost MISO.

Illinois Gov. JB Pritzker vetoed a measure that would have allowed incumbent utilities in downstate Illinois exclusive rights to build regional MISO transmission lines.

The Illinois Commerce Commission has instituted a notice of inquiry over the potential benefits of Ameren Illinois quitting MISO to join PJM.

The court upheld a FERC order requiring $11.5 million in refunds from Ameren Illinois after 10 years of misreporting costs.

MEI's annual economic development meeting examined the role utilities played in two economic development projects in the service areas of 2 Missouri utilities.

FERC has decided that Ameren Illinois must still issue refunds over transmission rate errors uncovered by a central Illinois co-op.

Southwestern Electric Cooperative got a few wins in its challenges to Ameren Illinois’ annual formula rate updates.