SAIDI
9 min per year
Average outage minutes (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. As a municipal utility, it is typically governed by a local board or city council and is exempt from federal income tax.
In 2023, the average City of Chaska - (MN) customer experienced 8.7 minutes of power interruptions — a metric called SAIDI (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.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for City of Chaska - (MN), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. 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. All figures on this page come directly from EIA Form 861, the federal annual electric power industry survey, with service territory ZIPs sourced from OpenEI — you can cross-reference them with your own utility bill or use them when comparing providers before relocating.
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
Minutes without power 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, meaning the average customer experienced about 9 minutes of outages that year. This is below the national average, indicating above-average reliability.
What type of utility is City of Chaska - (MN)?
City of Chaska - (MN) is classified as a Municipal serving Minnesota. Municipal utilities are owned and operated by local governments.
What does SAIDI mean for City of Chaska - (MN)?
SAIDI (System Average Interruption Duration Index) measures the average total minutes per year that a customer of City of Chaska - (MN) experiences power outages. A lower SAIDI indicates better reliability. The national average is roughly 120-180 minutes per year, so comparing City of Chaska - (MN)'s SAIDI to that benchmark shows whether this utility is above or below average.
How many customers does City of Chaska - (MN) serve?
City of Chaska - (MN) serves approximately 11,259 customers in Minnesota. Customer count can affect reliability metrics because larger utilities may face different infrastructure challenges compared to smaller ones.
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.
What is SAIDI without major event days?
SAIDI "without major event days" (SAIDI nMED) excludes outages caused by hurricanes, ice storms, and other catastrophic weather events. It better reflects day-to-day infrastructure reliability rather than vulnerability to extreme weather. Both standard SAIDI and SAIDI nMED are shown in the reliability trend table above.
Utility Profile
- Type
- Municipal
- State
- Minnesota
- Customers
- 11,259
- Annual Revenue
- $0.06B
- EIA ID
- 3400
Related Data
Guides
Data Source: U.S. Energy Information Administration Form 861 annual electric power industry survey. ZIP service territory from OpenEI.
Related
Data sourced from official EIA reliability statistics and OpenEI utility rate database. See our methodology for details. Retrieved and formatted by PlainUtility Editorial
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Energy Information Administration (EIA) Form 861. Consult a qualified professional before making decisions based on this data.
Read our methodology — how this data is sourced, computed, and verified.