LANSING — Michigan Attorney General Dana Nessel has intervened in DTE’s recently filed gas rate case as an advocate for DTE’s natural gas customers across the state.

In the case, docket number U-21291 before the Michigan Public Service Commission, DTE requests a $266 million annual increase in gas rates, a nearly 10% increase for residential customers, Nessel said.

“We will approach DTE’s latest gas rate increase request as we have every one that has come before it, and work to ensure that natural gas costs are affordable for our state’s utility customers,” Nessel said in a news release.

“This is yet another in a continuing string of multi-hundred-million-dollar cases brought by the company. My team and its experts will carefully examine DTE’s requested increasesand strongly object to any that are unreasonable or are more aligned to shareholder benefits than ensuring ratepayers can keep their homes warm all winter.”

Nessel said her intervention in DTE Gas’s last rate case, U-20940, helped save customers more than $110 million. That gas rate case was approved in December 2021, resulting in a $3.18 increase to the average residential customer’s monthly bill.

DTE provides natural gas to 1.3 million customers across the state and electricity to approximately 2.2 million customers in Southeast Michigan.