Heads-Up: Scheduled System Maintenance September 19–21

We want to give you notice that, weather permitting, we’ll be performing maintenance on our website, mobile app, and Call Centers next month.

More Than the Sum of Our Plants

We’ve been working for Michigan families and businesses for more than a century. We got our start in Jackson in 1886 and remain headquartered there today. We’re the principal subsidiary of CMS Energy.

Data reflects Dec. 31, 2023 reports

Heads-Up: Scheduled System Maintenance September 19–21

Corporate Overview

More Than the Sum of Our Plants