SAIDI
9 min per year
Yearly outage minutes, on average (2023)
What This Utility Data Tells You
City of Chaska - (MN) is a municipally-owned utility operating in Minnesota under EIA identifier 3400. It reports service to approximately 11,259 customer accounts and generated about $0.06 billion in annual electric revenue, with a service footprint spanning 1 ZIP code. 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 City of Chaska - (MN) customer experienced 8.7 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). That places this utility well below the 120–180 minute national benchmark, signaling strong grid hardening and fast restoration practices. SAIFI, the average number of outage events per customer, was 0.13 for the same period, so customers statistically faced roughly 0 distinct interruptions that year.
With 4 consecutive years of EIA data (2020–2023), City of Chaska - (MN)'s reliability record can be judged on trend rather than one isolated year. SAIDI has improved from 8.8 to 8.7 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.
SAIFI
0.13 interruptions/yr
Outage frequency (2023)
Customers
11,259
Served in Minnesota
SAIDI vs. National Average (180 min) 2.2%
9 minutes per customer per year
Power-out minutes per year (2023)
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 8.8 | - | 0.120 | - |
| 2021 | 13.7 | - | 0.283 | - |
| 2022 | 16.5 | - | 0.217 | - |
| 2023 | 8.7 | - | 0.130 | - |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
City of Chaska - (MN) serves 1 ZIP code in Minnesota.
55318
Frequently Asked Questions
How reliable is City of Chaska - (MN)?
City of Chaska - (MN) had a SAIDI of 8.7 minutes in 2023. Excluding major storm impacts, this beats the national average, a sign of above-average reliability.
What type of utility is City of Chaska - (MN)?
City of Chaska - (MN) is classified as a Municipal serving Minnesota.
How many customers does City of Chaska - (MN) serve?
City of Chaska - (MN) serves approximately 11,259 customers in Minnesota.
How has City of Chaska - (MN)'s reliability changed over time?
City of Chaska - (MN) 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
- Municipal
- State
- Minnesota
- Customers
- 11,259
- Annual Revenue
- $0.06B
- EIA ID
- 3400
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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.