SAIDI
186 min per year
Mean outage duration per year (2023)
What This Utility Data Tells You
Ketchikan Public Utilities is a municipally-owned utility operating in Alaska under EIA identifier 10210. It reports service to approximately 7,949 customer accounts and generated about $0.02 billion in annual electric revenue, with a service footprint spanning 2 ZIP codes. Being municipally owned, the utility answers to a local board or city council rather than a state commission, and carries a federal income tax exemption.
In 2023, the average Ketchikan Public Utilities customer experienced 185.5 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). That sits within the 120–180 minute national benchmark range, indicating performance typical of U.S. distribution utilities. The SAIFI figure, which tracks average outage events per customer, came in at 3.20 for the same period, meaning customers statistically saw about 3 distinct interruptions that year.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Ketchikan Public Utilities, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI dropped from 566.5 to 185.5 minutes across that span, a direction regulators and prospective customers tend to watch closely.
SAIFI
3.20 interruptions/yr
Average interruption count (2023)
Customers
7,949
Served in Alaska
SAIDI vs. National Average (180 min) 46.4%
186 outage minutes per customer annually
Annual minutes without electric service (2023)
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 566.5 | - | 5.300 | - |
| 2021 | 361.3 | - | 5.600 | - |
| 2022 | 202.6 | - | 3.800 | - |
| 2023 | 185.5 | - | 3.200 | - |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Ketchikan Public Utilities serves 2 ZIP codes in Alaska.
9990199928
Frequently Asked Questions
How reliable is Ketchikan Public Utilities?
Ketchikan Public Utilities had a SAIDI of 185.5 minutes in 2023. Excluding major weather events, this is near the national average.
What type of utility is Ketchikan Public Utilities?
Ketchikan Public Utilities is classified as a Municipal serving Alaska.
How many customers does Ketchikan Public Utilities serve?
Ketchikan Public Utilities serves approximately 7,949 customers in Alaska.
How has Ketchikan Public Utilities's reliability changed over time?
Ketchikan Public Utilities 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
- Municipal
- State
- Alaska
- Customers
- 7,949
- Annual Revenue
- $0.02B
- EIA ID
- 10210
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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.