IOU · Idaho · EIA 9191
Idaho Power Co
IOU · Idaho · 604K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 130 minutes/customer.
Reliability verdict
Idaho Power Co shows near-benchmark chronic reliability in 2023: 120 minutes SAIDI excluding major events across 604K customers.
- 130 min
- SAIDI 2023
- 1.07
- SAIFI 2023
- 120 min
- SAIDI ex-MED
- 604K
- 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 Idaho Power Co filings show
Idaho Power Co is an investor-owned utility operating in Idaho under EIA identifier 9191. It reports service to approximately 604,230 customer accounts and generated about $1.42 billion in annual electric revenue, with a service footprint spanning 193 ZIP codes. Investor ownership puts this utility under the regulatory authority of the state public utility commission, which reviews its rate requests and reliability record.
In 2023, the average Idaho Power Co customer experienced 130.4 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That lands within the usual 120–180 minute national benchmark band, roughly on par with typical U.S. distribution-utility performance. Over the same period, SAIFI (outage events per customer) was 1.07, putting the typical customer at roughly 1 distinct interruption that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 119.7 minutes, and the spread against the headline 130.4 indicates how much weather, versus routine infrastructure, drove the outage total.
Idaho Power Co has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. SAIDI dropped from 209.8 to 130.4 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.
130 min/year per customer
Minutes without power per year (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Idaho Power Co from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Idaho Power Co SAIDI trend
Idaho Power Co vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
130 Lower than most fewer outage minutes than 58% 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 Idaho Power Co sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Idaho Power Co charges more per customer than 40% of them, and is more reliable (lower SAIDI) than 61% 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: $2,356/year · Latest SAIDI: 130.4 minutes/year.
SAIDI 2023 breakdown: 130.4 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 209.8 | 160.4 | 1.230 | 561,795 |
| 2021 | 160.9 | 119.8 | 1.360 | 577,694 |
| 2022 | 152.4 | 151.7 | 1.170 | 591,458 |
| 2023 | 130.4 | 119.7 | 1.070 | 605,929 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Idaho Power Co serves 193 ZIP codes in Idaho.
Frequently Asked Questions
How reliable is Idaho Power Co?
Idaho Power Co had a SAIDI of 130.4 minutes in 2023. Excluding major weather events, this is near the national average.
What type of utility is Idaho Power Co?
Idaho Power Co is classified as a IOU serving Idaho.
How many customers does Idaho Power Co serve?
Idaho Power Co serves approximately 604,230 customers in Idaho.
How has Idaho Power Co's reliability changed over time?
Idaho Power Co has 4 years of reliability data (2020-2023). SAIDI has remained relatively stable over this period. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- IOU
- State
- Idaho
- Customers
- 604,230
- Annual Revenue
- $1.42B
- EIA ID
- 9191
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Idaho Power Co. 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 (604K here), outside Idaho.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (130.4 here), outside Idaho, 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.