Cooperative · Colorado · EIA 9336
CORE Electric Cooperative
Cooperative · Colorado · 176K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 118 minutes/customer.
Reliability verdict
CORE Electric Cooperative shows above-average chronic reliability in 2023: 64 minutes SAIDI excluding major events across 176K customers.
- 118 min
- SAIDI 2023
- 0.90
- SAIFI 2023
- 64 min
- SAIDI ex-MED
- 176K
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: mid-cohort SAIDI between the 96 and 258 minute tercile cuts.
What mid-pack CORE Electric Cooperative filings show
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.
Based on this utility's own EIA Form 861 reliability record -- baseline (major-event- excluded) outage duration, total outage duration, and outage frequency -- each benchmarked against every reporting utility nationwide. Not a measure of electricity rates or customer service, which this portal does not track.
118 outage minutes per customer annually
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for CORE Electric Cooperative from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
CORE Electric Cooperative SAIDI trend
CORE Electric Cooperative vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
118 Lower than most fewer outage minutes than 61% of 911 utilities
Utilities nationwide, banded by latest reported SAIDI (minutes)
Each bar is a band; taller bars hold more utilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source U.S. EIA Form 861 reliability filings · August 2026
Price vs. reliability
Where CORE Electric Cooperative sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, CORE Electric Cooperative charges more per customer than 12% of them, and is more reliable (lower SAIDI) than 64% of them, placing it in the quadrant where it pays less while still being more reliable, the best-value quadrant. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $1,949/year · Latest SAIDI: 117.9 minutes/year.
SAIDI 2023 breakdown: 117.9 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 117.5 | 89.3 | 0.771 | 163,238 |
| 2021 | 160.1 | 46.3 | 0.910 | 167,140 |
| 2022 | 136.2 | 101.5 | 1.061 | 171,351 |
| 2023 | 117.9 | 64.0 | 0.902 | 175,289 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
CORE Electric Cooperative serves 63 ZIP codes in Colorado.
Frequently Asked Questions
How reliable is CORE Electric Cooperative?
CORE Electric Cooperative had a SAIDI of 117.9 minutes in 2023. Leaving aside major weather events, that figure comes in under the national average, pointing to above-average reliability.
What type of utility is CORE Electric Cooperative?
CORE Electric Cooperative is classified as a Cooperative serving Colorado.
How many customers does CORE Electric Cooperative serve?
CORE Electric Cooperative serves approximately 175,725 customers in Colorado.
How has CORE Electric Cooperative's reliability changed over time?
CORE Electric Cooperative has 4 years of reliability data (2020-2023). SAIDI has held roughly steady across these years. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- Cooperative
- State
- Colorado
- Customers
- 175,725
- Annual Revenue
- $0.34B
- EIA ID
- 9336
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for CORE Electric Cooperative. Same-state SAIDI neighbors stay in Read-with below; these neighborhoods are nearest other-state utilities with at least 10,000 reported customers.
Similar customer count
Nearest utilities by Form 861 customers (176K here), outside Colorado.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (117.9 here), outside Colorado, excluding the customer-peer set.
Source: U.S. Energy Information Administration Form 861 annual electric power industry survey · ZIP service territory: OpenEI. Disclaimer: informational only, not professional advice. See full disclaimer · methodology.