IOU · Kentucky · EIA 10171
Kentucky Utilities Co
IOU · Kentucky · 542K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 905 minutes/customer.
Reliability verdict
Kentucky Utilities Co shows above-average chronic reliability in 2023: 75 minutes SAIDI excluding major events (905 minutes including them) across 542K customers.
- 905 min
- SAIDI 2023
- 1.34
- SAIFI 2023
- 75 min
- SAIDI ex-MED
- 542K
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: long interruption minutes vs the 911 utility cohort (>258 min tercile cut).
What long-outage Kentucky Utilities Co filings show
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.
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.
905 outage minutes per customer annually
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Kentucky Utilities Co from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Kentucky Utilities Co SAIDI trend
Kentucky Utilities Co vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
905 Higher than most fewer outage minutes than 8% 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 Kentucky Utilities Co sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Kentucky Utilities Co charges more per customer than 81% of them, and is more reliable (lower SAIDI) than 9% 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: $3,175/year · Latest SAIDI: 905.4 minutes/year.
SAIDI 2023 breakdown: 905.4 minutes
Reliability Trend (2020–2023)
| 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.
Service Area
Kentucky Utilities Co serves 376 ZIP codes in Kentucky.
Frequently Asked Questions
How reliable is Kentucky Utilities Co?
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.
What type of utility is Kentucky Utilities Co?
Kentucky Utilities Co is classified as a IOU serving Kentucky.
How many customers does Kentucky Utilities Co serve?
Kentucky Utilities Co serves approximately 542,047 customers in Kentucky.
How has Kentucky Utilities Co's reliability changed over time?
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.
Utility Profile
- Type
- IOU
- State
- Kentucky
- Customers
- 542,047
- Annual Revenue
- $1.72B
- EIA ID
- 10171
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Kentucky Utilities Co. 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 (542K here), outside Kentucky.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (905.4 here), outside Kentucky, 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.