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. As a cooperative, its governance is accountable to its ratepayer-members rather than shareholders, which often shapes rate-setting and reinvestment priorities.

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 sits within the 120–180 minute national benchmark range, indicating performance typical of U.S. distribution utilities. SAIFI — the average number of outage events per customer — was 1.69 for the same period, so customers statistically faced roughly 2 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 202.5 minutes — the gap between that figure and the headline 265.2 reveals how much weather, not day-to-day infrastructure, drove outages.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for Great Lakes Energy Coop, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has improved from 486.3 to 265.2 minutes over that window — a meaningful direction for prospective customers and regulators watching capital investment outcomes. All figures on this page come directly from EIA Form 861, the federal annual electric power industry survey, with service territory ZIPs sourced from OpenEI — you can cross-reference them with your own utility bill or use them when comparing providers before relocating.