IOU · Missouri · EIA 12698
Evergy Missouri West
IOU · Missouri · 344K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 220 minutes/customer.
Reliability verdict
Evergy Missouri West shows near-benchmark chronic reliability in 2023: 119 minutes SAIDI excluding major events across 344K customers.
- 220 min
- SAIDI 2023
- 1.57
- SAIFI 2023
- 119 min
- SAIDI ex-MED
- 344K
- 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 Evergy Missouri West filings show
Evergy Missouri West is an investor-owned utility operating in Missouri under EIA identifier 12698. It reports service to approximately 343,879 customer accounts and generated about $0.88 billion in annual electric revenue, with a service footprint spanning 191 ZIP codes. Because it is investor-owned, the state public utility commission oversees its rate cases and reliability performance rather than a local board.
In 2023, the average Evergy Missouri West customer experienced 220.2 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That lands within the usual 120–180 minute national benchmark band, roughly on par with typical U.S. distribution-utility performance. Over the same period, SAIFI (outage events per customer) was 1.57, putting the typical customer at roughly 2 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 119.1 minutes, the gap between that figure and the headline 220.2 reveals how much weather, not day-to-day infrastructure, drove outages.
With 4 consecutive years of EIA data (2020–2023), Evergy Missouri West's reliability record can be judged on trend rather than one isolated year. Over that window, SAIDI moved from 247.9 down to 220.2 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.
220 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 Evergy Missouri West from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Evergy Missouri West SAIDI trend
Evergy Missouri West vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
220 Around the middle fewer outage minutes than 39% 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 Evergy Missouri West sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Evergy Missouri West charges more per customer than 52% of them, and is more reliable (lower SAIDI) than 42% of them, placing it in the quadrant where it pays more but is LESS reliable, a premium price without a reliability payoff. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $2,562/year · Latest SAIDI: 220.2 minutes/year.
SAIDI 2023 breakdown: 220.2 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 247.9 | 120.8 | 1.470 | 313,681 |
| 2021 | 310.5 | 137.4 | 1.860 | 335,285 |
| 2022 | 171.1 | 124.4 | 1.385 | 338,863 |
| 2023 | 220.2 | 119.1 | 1.568 | 343,960 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Evergy Missouri West serves 191 ZIP codes in Missouri.
Frequently Asked Questions
How reliable is Evergy Missouri West?
Evergy Missouri West had a SAIDI of 220.2 minutes in 2023. Excluding major weather events, this is near the national average.
What type of utility is Evergy Missouri West?
Evergy Missouri West is classified as a IOU serving Missouri.
How many customers does Evergy Missouri West serve?
Evergy Missouri West serves approximately 343,879 customers in Missouri.
How has Evergy Missouri West's reliability changed over time?
Evergy Missouri West has 4 years of reliability data (2020-2023). This utility's SAIDI has stayed fairly flat over the period. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- IOU
- State
- Missouri
- Customers
- 343,879
- Annual Revenue
- $0.88B
- EIA ID
- 12698
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Evergy Missouri West. 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 (344K here), outside Missouri.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (220.2 here), outside Missouri, 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.