CORE Electric Cooperative

What This Utility Data Tells You

CORE Electric Cooperative is a member-owned electric cooperative operating in Colorado under EIA identifier 9336. It reports service to approximately 175,725 customer accounts and generated about $0.34 billion in annual electric revenue, with a service footprint spanning 63 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 CORE Electric Cooperative customer experienced 117.9 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That places this utility well below the 120–180 minute national benchmark, signaling strong grid hardening and fast restoration practices. The SAIFI figure, which tracks average outage events per customer, came in at 0.90 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 64.0 minutes, and the spread against the headline 117.9 indicates how much weather, versus routine infrastructure, drove the outage total.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for CORE Electric Cooperative, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI climbed from 117.5 to 117.9 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.