IOU · Montana · EIA 12199
Montana-Dakota Utilities Co
IOU · Montana · 94K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 112 minutes/customer.
Reliability verdict
Montana-Dakota Utilities Co shows near-benchmark chronic reliability in 2023: 112 minutes SAIDI across 94K customers.
- 112 min
- SAIDI 2023
- 1.29
- SAIFI 2023
- 94K
- 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 Montana-Dakota Utilities Co filings show
Montana-Dakota Utilities Co is an investor-owned utility operating in Montana under EIA identifier 12199. It reports service to approximately 93,947 customer accounts and generated about $0.23 billion in annual electric revenue, with a service footprint spanning 179 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 Montana-Dakota Utilities Co customer experienced 112.4 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. Over the same period, SAIFI (outage events per customer) was 1.29, putting the typical customer at roughly 1 distinct interruption that year.
With 4 consecutive years of EIA data (2020–2023), Montana-Dakota Utilities Co's reliability record can be judged on trend rather than one isolated year. Over that window, SAIDI moved from 137.2 down to 112.4 minutes, a trend worth noting for anyone weighing capital investment outcomes.
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.
112 minutes per customer per year
Power-out minutes per year (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Montana-Dakota Utilities Co from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Montana-Dakota Utilities Co SAIDI trend
Montana-Dakota Utilities Co vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
112 Lower than most fewer outage minutes than 62% 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 Montana-Dakota Utilities 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, Montana-Dakota Utilities Co charges more per customer than 43% of them, and is more reliable (lower SAIDI) than 66% 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: $2,433/year · Latest SAIDI: 112.4 minutes/year.
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIFI |
|---|---|---|
| 2020 | 137.2 | 1.684 |
| 2021 | 685.1 | 3.100 |
| 2022 | 120.7 | 1.204 |
| 2023 | 112.4 | 1.287 |
Service Area
Montana-Dakota Utilities Co serves 179 ZIP codes in Montana.
Frequently Asked Questions
How reliable is Montana-Dakota Utilities Co?
Montana-Dakota Utilities Co had a SAIDI of 112.4 minutes in 2023. Leaving aside major weather events, that figure sits close to the national average.
What type of utility is Montana-Dakota Utilities Co?
Montana-Dakota Utilities Co is classified as a IOU serving Montana.
How many customers does Montana-Dakota Utilities Co serve?
Montana-Dakota Utilities Co serves approximately 93,947 customers in Montana.
How has Montana-Dakota Utilities Co's reliability changed over time?
Montana-Dakota Utilities 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
- Montana
- Customers
- 93,947
- Annual Revenue
- $0.23B
- EIA ID
- 12199
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Montana-Dakota Utilities 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 (94K here), outside Montana.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (112.4 here), outside Montana, 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.