How reliable is Otter Tail Power Co?

Otter Tail Power Co customers averaged 2.6 hours without power in 2024 (SAIDI), which is about average and better than the US average, worse than the North Dakota median (1.7 h), per official US EIA data.

Where does Otter Tail Power Co rank among US electric utilities?

By official EIA SAIDI, Otter Tail Power Co is #128 of 468 US utilities by reliability that report reliability and serve at least three counties, #1 being the most reliable. Overall it is better than the US average.

How many customers does Otter Tail Power Co serve?

Otter Tail Power Co serves 75 counties across 3 states, per its EIA-861 service territory filing.

Where does Otter Tail Power Co provide power?

Otter Tail Power Co operates in Minnesota, North Dakota, South Dakota. The full list of counties served is below, each linked to its live outage status.

Otter Tail Power Co: Outages & Reliability

As of October 7, 2026 09:00 UTC, about 2 Otter Tail Power Co customers are without power in 2 counties.

Otter Tail Power Co is an investor owned utility serving 75 counties in 3 states. In 2024, its customers went an average of 2.6 hours without power (SAIDI), across about 1.4 interruptions each. That ranks it #128 of 468 US utilities by reliability, where #1 is the most reliable. Its outage duration is better than the US average and worse than the North Dakota median (1.7 h).

SCATTERED OUTAGES · ON ITS NETWORKLive · total only

Otter Tail Power Co customers out in 2 counties

Official reliability (EIA 2024)

US EIA

2.6 hrs

SAIDI / customer / yr

1.4

SAIFI / yr

1.9 hrs

CAIDI / outage

better than the US average (US 11.0h)

Ranks #128 of 468 US utilities by reliability (#1 = most reliable) · worse than the North Dakota median (1.7 h).

Residential price11.3¢/kWhaverage, US EIA 2024energy trends →

Reliability over time

Official EIA SAIDI, hours without power per customer per year (IEEE, incl. major events). Over this period Otter Tail Power Co’s reliability has been worsening (lower is better).

Outage trend · Otter Tail Power Co

2customers out · peak 61

Data as of Oct 7, 2026 09:00 UTC

Times in EDT. Shaded stretches had no reading.

Counties served by Otter Tail Power Co (75)

Service territory reported to EIA-861; each links to live outage status and history.

Otter Tail Power Co: FAQ

How reliable is Otter Tail Power Co?: Otter Tail Power Co customers averaged 2.6 hours without power in 2024 (SAIDI), which is about average and better than the US average, worse than the North Dakota median (1.7 h), per official US EIA data.
Where does Otter Tail Power Co rank among US electric utilities?: By official EIA SAIDI, Otter Tail Power Co is #128 of 468 US utilities by reliability that report reliability and serve at least three counties, #1 being the most reliable. Overall it is better than the US average.
How many customers does Otter Tail Power Co serve?: Otter Tail Power Co serves 75 counties across 3 states, per its EIA-861 service territory filing.
Where does Otter Tail Power Co provide power?: Otter Tail Power Co operates in Minnesota, North Dakota, South Dakota. The full list of counties served is below, each linked to its live outage status.

Reliability metrics (SAIDI/SAIFI) and service territory from the US EIA Form 861. SAIDI/SAIFI are IEEE-standard, including major event days. Primary state: North Dakota.

Data from EIA Form 861 (utility reliability) and DOE/ORNL ODIN, every source we read. Live data as of October 7, 2026 09:00 UTC.