ITS Service Status Report

Scheduled Maintenance

Flywheel Maintenance at MACC Data Center

Services Affected: Data Center Services

Start Time: 11/01/2021 7:00 am

Anticipated End Time: 12/10/2021 5:00 pm

Issue Symptoms: None

What we are doing: Performing maintenance on the flywheel system at the MACC data center.  This maintenance includes replacing bearings, replacing capacitors, and changing oil.  The work will be done on one unit at a time with no interruption to our ability to provide backup power in the event of a DTE outage.

Why we are doing this: Preventative maintenance is critical on this equipment.  We recently had a bearing failure on one set of flywheels, and the capacitors and oil are both due for replacement.  During recent maintenance, our flywheel vendor noted that the oil is discolored and in need of change.  This work helps to ensure that these flywheels operate as expected when needed.

Who will be impacted: There is no impact expected.  The MACC was designed with extra flywheel capacity so that maintenance could be performed on individual units without affecting service.

Who is Impacted? No impact is expected.

Next Update: Upon completion of work

Technical Details

Service Type: Production

Groups Notified:

Report Additional Impacts

Contact the ITS Service Center for more information or to report additional impacts.