DTE Energy announced the appointment of Joi Harris as president of DTE Gas, the company’s natural gas utility serving 1.3 million residential and business customers across its service territory. Harris, a 30-year veteran of DTE, has a long history with DTE Gas. She started shadowing engineers at the age of 15, before becoming a company co-op at 18. She climbed the ladder, serving in a number of leadership positions within the organization, rising to the rank of vice president, and most recently as senior vice president of the