IOU · Texas · EIA 40051
Texas-New Mexico Power Co
IOU · Texas. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 130 minutes/customer.
Reliability verdict
Texas-New Mexico Power Co shows near-benchmark chronic reliability in 2023: 101 minutes SAIDI excluding major events.
- 130 min
- SAIDI 2023
- 1.29
- SAIFI 2023
- 101 min
- SAIDI ex-MED
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: mid-cohort SAIDI between the 96 and 258 minute tercile cuts.
What mid-pack Texas-New Mexico Power Co filings show
Texas-New Mexico Power Co is an investor-owned utility operating in Texas under EIA identifier 40051. 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 Texas-New Mexico Power Co customer experienced 129.7 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). That falls inside the typical 120–180 minute national benchmark, in line with what most U.S. distribution utilities report. The SAIFI figure, which tracks average outage events per customer, came in at 1.29 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 101.2 minutes, the gap between that figure and the headline 129.7 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Texas-New Mexico Power Co, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI climbed from 110.2 to 129.7 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.
130 outage minutes per customer annually
Power-out minutes per year (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Texas-New Mexico Power Co from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Texas-New Mexico Power Co SAIDI trend
Texas-New Mexico Power Co vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
130 Lower than most fewer outage minutes than 58% 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
SAIDI 2023 breakdown: 129.7 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI |
|---|---|---|---|
| 2020 | 110.2 | 95.7 | 1.060 |
| 2021 | 203.7 | 102.3 | 1.390 |
| 2022 | 101.6 | 92.7 | 1.164 |
| 2023 | 129.7 | 101.2 | 1.290 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Frequently Asked Questions
How reliable is Texas-New Mexico Power Co?
Texas-New Mexico Power Co had a SAIDI of 129.7 minutes in 2023. Excluding major storm impacts, this tracks roughly with the national average.
What type of utility is Texas-New Mexico Power Co?
Texas-New Mexico Power Co is classified as a IOU serving Texas.
How many customers does Texas-New Mexico Power Co serve?
Texas-New Mexico Power Co serves customers in Texas. Exact customer count data is not available in the current EIA filing.
How has Texas-New Mexico Power Co's reliability changed over time?
Texas-New Mexico Power 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
- Texas
- Customers
- -
- EIA ID
- 40051
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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 · methodology.