SAIDI
905 min per year
Yearly outage minutes, on average (2023)
Kentucky Utilities Co is an investor-owned utility operating in Kentucky under EIA identifier 10171. It reports service to approximately 542,047 customer accounts and generated about $1.72 billion in annual electric revenue, with a service footprint spanning 376 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 Kentucky Utilities Co customer experienced 905.4 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). Excluding major weather events from that total, that is comfortably under the 120–180 minute national benchmark range, a sign of solid grid resilience and quick outage response. The SAIFI figure, which tracks average outage events per customer, came in at 1.34 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 74.6 minutes, the gap between that figure and the headline 905.4 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Kentucky Utilities Co, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI climbed from 84.4 to 905.4 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.
SAIDI
905 min per year
Yearly outage minutes, on average (2023)
SAIFI
1.34 interruptions/yr
Outage frequency (2023)
Customers
542,047
Served in Kentucky
905 outage minutes per customer annually
Annual minutes without electric service (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 84.4 | 64.9 | 0.806 | 540,598 |
| 2021 | 241.2 | 79.3 | 0.906 | 546,612 |
| 2022 | 160.0 | 78.5 | 1.141 | 549,407 |
| 2023 | 905.4 | 74.6 | 1.344 | 552,299 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Kentucky Utilities Co serves 376 ZIP codes in Kentucky.
Kentucky Utilities Co had a SAIDI of 905.4 minutes in 2023 including major weather events, but 74.6 minutes excluding them (the IEEE-standard measure of day-to-day reliability, the gap reflects a major storm that year, not chronic performance). Leaving aside major weather events, that figure comes in under the national average, pointing to above-average reliability.
Kentucky Utilities Co is classified as a IOU serving Kentucky.
Kentucky Utilities Co serves approximately 542,047 customers in Kentucky.
Kentucky 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.
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.