Cooperative · Wyoming · EIA 8566
High Plains Power Inc
Cooperative · Wyoming · 14K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 326 minutes/customer.
Reliability verdict
High Plains Power Inc shows below-average chronic reliability in 2023: 326 minutes SAIDI excluding major events across 14K customers.
- 326 min
- SAIDI 2023
- 326 min
- SAIDI ex-MED
- 14K
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: long interruption minutes vs the 911 utility cohort (>258 min tercile cut).
What long-outage High Plains Power Inc filings show
High Plains Power Inc is a member-owned electric cooperative operating in Wyoming under EIA identifier 8566. It reports service to approximately 13,835 customer accounts and generated about $0.08 billion in annual electric revenue, with a service footprint spanning 38 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 High Plains Power Inc customer experienced 325.6 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That exceeds the 120–180 minute national benchmark by a wide margin, a pattern often tied to severe weather exposure, older infrastructure, or longer repair windows. Excluding major event days (hurricanes, ice storms), SAIDI drops to 325.6 minutes, the gap between that figure and the headline 325.6 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for High Plains Power Inc, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI dropped from 437.3 to 325.6 minutes across that span, a direction regulators and prospective customers tend to watch closely.
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.
326 outage minutes per customer annually
Power-out minutes per year (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for High Plains Power Inc from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
High Plains Power Inc SAIDI trend
High Plains Power Inc vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
326 Around the middle fewer outage minutes than 28% 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 High Plains Power Inc sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, High Plains Power Inc charges more per customer than 99% of them, and is more reliable (lower SAIDI) than 31% of them, placing it in the quadrant where it pays more but is LESS reliable, a premium price without a reliability payoff. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $5,907/year · Latest SAIDI: 325.6 minutes/year.
SAIDI 2023 breakdown: 325.6 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 437.3 | 333.0 | - | - |
| 2021 | 276.3 | 259.5 | - | - |
| 2022 | 190.1 | 190.1 | - | - |
| 2023 | 325.6 | 325.6 | - | 13,781 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
High Plains Power Inc serves 38 ZIP codes in Wyoming.
Frequently Asked Questions
How reliable is High Plains Power Inc?
High Plains Power Inc had a SAIDI of 325.6 minutes in 2023. Excluding major storm impacts, this trails the national average, indicating below-average reliability.
What type of utility is High Plains Power Inc?
High Plains Power Inc is classified as a Cooperative serving Wyoming.
How many customers does High Plains Power Inc serve?
High Plains Power Inc serves approximately 13,835 customers in Wyoming.
How has High Plains Power Inc's reliability changed over time?
High Plains Power Inc 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
- Wyoming
- Customers
- 13,835
- Annual Revenue
- $0.08B
- EIA ID
- 8566
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for High Plains Power Inc. 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 (14K here), outside Wyoming.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (325.6 here), outside Wyoming, 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.