IOU · Tennessee · EIA 10331
Kingsport Power Co
IOU · Tennessee · 49K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 495 minutes/customer.
Reliability verdict
Kingsport Power Co shows near-benchmark chronic reliability in 2023: 192 minutes SAIDI excluding major events (495 minutes including them) across 49K customers.
- 495 min
- SAIDI 2023
- 2.07
- SAIFI 2023
- 192 min
- SAIDI ex-MED
- 49K
- 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 Kingsport Power Co filings show
Kingsport Power Co is an investor-owned utility operating in Tennessee under EIA identifier 10331. It reports service to approximately 49,140 customer accounts and generated about $0.23 billion in annual electric revenue, with a service footprint spanning 4 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 Kingsport Power Co customer experienced 495.4 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. Excluding major weather events from that total, that lands within the usual 120–180 minute national benchmark band, roughly on par with typical U.S. distribution-utility performance. SAIFI, the average number of outage events per customer, was 2.07 for the same period, so customers statistically faced roughly 2 distinct interruptions that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 191.5 minutes, and the spread against the headline 495.4 indicates how much weather, versus routine infrastructure, drove the outage total.
Kingsport Power Co has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. Over that span, SAIDI rose from 382.8 to 495.4 minutes, possibly reflecting tougher weather years or grid upgrades that have not caught up yet.
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.
495 minutes per customer per year
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Kingsport Power Co from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Kingsport Power Co SAIDI trend
Kingsport Power Co vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
495 Higher than most fewer outage minutes than 18% 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 Kingsport Power 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, Kingsport Power Co charges more per customer than 96% of them, and is more reliable (lower SAIDI) than 20% 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: $4,711/year · Latest SAIDI: 495.4 minutes/year.
SAIDI 2023 breakdown: 495.4 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 382.8 | 268.6 | 1.671 | 48,429 |
| 2021 | 225.6 | 225.6 | 1.288 | 48,567 |
| 2022 | 431.6 | 290.6 | 1.989 | 48,886 |
| 2023 | 495.4 | 191.5 | 2.074 | 49,242 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Kingsport Power Co serves 4 ZIP codes in Tennessee.
Frequently Asked Questions
How reliable is Kingsport Power Co?
Kingsport Power Co had a SAIDI of 495.4 minutes in 2023 including major weather events, but 191.5 minutes excluding them (the industry-standard measure of routine reliability, so the gap traces back to a major storm that year, not a chronic issue). Excluding major weather events, this is near the national average.
What type of utility is Kingsport Power Co?
Kingsport Power Co is classified as a IOU serving Tennessee.
How many customers does Kingsport Power Co serve?
Kingsport Power Co serves approximately 49,140 customers in Tennessee.
How has Kingsport Power Co's reliability changed over time?
Kingsport Power Co 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
- Tennessee
- Customers
- 49,140
- Annual Revenue
- $0.23B
- EIA ID
- 10331
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Kingsport Power 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 (49K here), outside Tennessee.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (495.4 here), outside Tennessee, 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.