SAIDI
114 min per year
Mean outage duration per year (2023)
Evergy Kansas South, Inc is an investor-owned utility operating in Kansas under EIA identifier 10005. It reports service to approximately 342,905 customer accounts and generated about $0.99 billion in annual electric revenue, with a service footprint spanning 160 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 Evergy Kansas South, Inc customer experienced 113.7 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). That keeps this utility below the typical 120–180 minute national benchmark, consistent with a well-hardened distribution system and fast restoration crews. The SAIFI figure, which tracks average outage events per customer, came in at 1.07 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 84.4 minutes, and the spread against the headline 113.7 indicates how much weather, versus routine infrastructure, drove the outage total.
Evergy Kansas South, Inc has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. SAIDI climbed from 86.2 to 113.7 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.
SAIDI
114 min per year
Mean outage duration per year (2023)
SAIFI
1.07 interruptions/yr
Average interruption count (2023)
Customers
342,905
Served in Kansas
114 min/year per customer
Power-out minutes per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 86.2 | 86.1 | 0.887 | 334,315 |
| 2021 | 167.8 | 113.9 | 1.330 | 332,977 |
| 2022 | 153.0 | 96.9 | 1.252 | 335,467 |
| 2023 | 113.7 | 84.4 | 1.074 | 341,029 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Evergy Kansas South, Inc serves 160 ZIP codes in Kansas.
Evergy Kansas South, Inc had a SAIDI of 113.7 minutes in 2023. Excluding major weather events, this is below the national average, indicating above-average reliability.
Evergy Kansas South, Inc is classified as a IOU serving Kansas.
Evergy Kansas South, Inc serves approximately 342,905 customers in Kansas.
Evergy Kansas South, Inc 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.
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.