Great Lakes Energy Coop

What This Utility Data Tells You

Great Lakes Energy Coop is a member-owned electric cooperative operating in Michigan under EIA identifier 38084. It reports service to approximately 131,726 customer accounts and generated about $0.23 billion in annual electric revenue, with a service footprint spanning 184 ZIP codes. Being member-owned, this cooperative answers to its ratepayers rather than outside shareholders, a structure that tends to influence how rate cases and capital spending get decided.

In 2023, the average Great Lakes Energy Coop customer experienced 265.2 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). That lands within the usual 120–180 minute national benchmark band, roughly on par with typical U.S. distribution-utility performance. Over the same period, SAIFI (outage events per customer) was 1.69, putting the typical customer at roughly 2 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 202.5 minutes; the difference from the headline 265.2 shows how much of the outage total came from weather rather than everyday grid issues.

With 4 consecutive years of EIA data (2020–2023), Great Lakes Energy Coop's reliability record can be judged on trend rather than one isolated year. SAIDI dropped from 486.3 to 265.2 minutes across that span, a direction regulators and prospective customers tend to watch closely.