SAIDI
354 min per year
Average outage minutes (2023)
What This Utility Data Tells You
CenterPoint Energy is an investor-owned utility operating in Texas under EIA identifier 8901. Customer count is not reported in the current EIA filing. Because it is investor-owned, the state public utility commission oversees its rate cases and reliability performance rather than a local board.
In 2023, the average CenterPoint Energy customer experienced 353.8 minutes of power interruptions, a metric called SAIDI (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 2.14 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 144.3 minutes; the difference from the headline 353.8 shows how much of the outage total came from weather rather than everyday grid issues.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for CenterPoint Energy, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 226.4 to 353.8 minutes, which may reflect either worsening weather exposure or delayed grid modernization.
SAIFI
2.14 interruptions/yr
Outage frequency (2023)
Customers
N/A
Texas service territory
SAIDI vs. National Average (180 min) 88.5%
354 outage minutes per customer annually
Minutes without power per year (2023)
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 226.4 | 138.2 | 1.776 | 2,610,562 |
| 2021 | 2365.6 | 149.9 | 4.665 | 2,667,346 |
| 2022 | 231.6 | 170.2 | 1.937 | 2,722,082 |
| 2023 | 353.8 | 144.3 | 2.143 | 2,761,886 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Frequently Asked Questions
How reliable is CenterPoint Energy?
CenterPoint Energy had a SAIDI of 353.8 minutes in 2023 including major weather events, but 144.3 minutes excluding them (the IEEE-standard measure of day-to-day reliability, the gap reflects a major storm that year, not chronic performance). Excluding major storm impacts, this tracks roughly with the national average.
What type of utility is CenterPoint Energy?
CenterPoint Energy is classified as a IOU serving Texas.
How many customers does CenterPoint Energy serve?
CenterPoint Energy serves customers in Texas. Exact customer count data is not available in the current EIA filing.
How has CenterPoint Energy's reliability changed over time?
CenterPoint Energy 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
- Texas
- Customers
- -
- EIA ID
- 8901
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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.