SAIDI
409 min per year
Yearly outage minutes, on average (2023)
What This Utility Data Tells You
AEP Texas Central Company is an investor-owned utility operating in Texas under EIA identifier 3278. Customer count is not reported in the current EIA filing. As an investor-owned utility, it operates under state public utility commission oversight that reviews rate cases and reliability performance.
In 2023, the average AEP Texas Central Company customer experienced 408.9 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). Excluding major weather events from that total, that sits within the 120–180 minute national benchmark range, indicating performance typical of U.S. distribution utilities. SAIFI, the average number of outage events per customer, was 2.02 for the same period, so customers statistically faced roughly 2 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 169.7 minutes; the difference from the headline 408.9 shows how much of the outage total came from weather rather than everyday grid issues.
AEP Texas Central Company 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 window, SAIDI moved from 515.6 down to 408.9 minutes, a trend worth noting for anyone weighing capital investment outcomes.
SAIFI
2.02 interruptions/yr
Average interruption count (2023)
Customers
N/A
Served in Texas
SAIDI vs. National Average (180 min) 100.0%
409 minutes per customer per year
Power-out minutes per year (2023)
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 515.6 | 170.1 | 1.882 | 869,844 |
| 2021 | 1901.1 | 186.3 | 3.363 | 883,117 |
| 2022 | 208.9 | 166.2 | 2.113 | 894,484 |
| 2023 | 408.9 | 169.7 | 2.018 | 901,182 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Frequently Asked Questions
How reliable is AEP Texas Central Company?
AEP Texas Central Company had a SAIDI of 408.9 minutes in 2023 including major weather events, but 169.7 minutes excluding them (the IEEE-standard day-to-day reliability measure, the difference points to a major storm that year rather than an ongoing problem). Excluding major weather events, this is near the national average.
What type of utility is AEP Texas Central Company?
AEP Texas Central Company is classified as a IOU serving Texas.
How many customers does AEP Texas Central Company serve?
AEP Texas Central Company serves customers in Texas. Exact customer count data is not available in the current EIA filing.
How has AEP Texas Central Company's reliability changed over time?
AEP Texas Central Company 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
- Texas
- Customers
- -
- EIA ID
- 3278
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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.