Michigan EIBC has sent a letter to John Bear, CEO of the Midcontinent Independent System Operator (MISO), the transmission grid operator for most of the Midwest and central U.S., calling for swift approval of Tranche 2, the next set of multi-billion dollar transmission lines part of MISO’s long-range transmission planning process. “MISO’s system continues to strain under the burden of increasingly frequent and severe weather events, accommodating a rapidly transitioning generation fleet, and expectations of increased load growth. There is no time to waste in making the necessary transmission investments to ensure system demand and reliability are met,” the letter said.