SAIDI
326 min per year
Average outage minutes (2023)
What This Utility Data Tells You
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.
SAIFI
N/A interruptions/yr
Average interruption count (2023)
Customers
13,835
Served in Wyoming
SAIDI vs. National Average (180 min) 81.4%
326 outage minutes per customer annually
Power-out minutes per year (2023)
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.
8230182310823278232982334824018241482432824338244282443825018251082512825138251482515825168252082523825248260182604826098261582620826308263782638826398264282646826488264982925830018301283013
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
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.
Every figure on PlainUtility is rendered directly from the U.S. Energy Information Administration's Form 861 reliability data, no number is typed in by an editor. This utility's SAIDI/SAIFI figures are rendered directly from EIA Form 861 reliability files. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2020-2023.