The Michigan Public Service Commission plans to look into the utility companies once power is restored to all customers.
The commission regulates the utility companies and plans to launch an investigation into how they performed in the aftermath of the storms.
"We plan to look at everything as a whole," said Judy Palnau, a spokesperson for the commission.
"This is common practice whenever we experience big outages for lengthy amounts of time."
The commission will look at response times, whether trees and limbs were adequately trimmed, and whether utilities spent adequately on operations and proper maintenance before the storm, Palnau said.
While companies like Consumers Energy and DTE are regulated by the commission, Lansing Board of Water Light is not and instead has its own board of regulators. Because of that, BWL will not be included in this investigation, according to Palnau.
The outcome of the investigation could affect future regulations and requirements.
A majority of restorations in Mid-Michigan are expected to be completed by Saturday.