SAIDI
2038 min per year
Mean outage duration per year (2023)
What This Utility Data Tells You
Public Service Co of Oklahoma is an investor-owned utility operating in Oklahoma under EIA identifier 15474. It reports service to approximately 575,929 customer accounts and generated about $1.93 billion in annual electric revenue, with a service footprint spanning 284 ZIP codes. As an investor-owned utility, it operates under state public utility commission oversight that reviews rate cases and reliability performance.
In 2023, the average Public Service Co of Oklahoma customer experienced 2037.5 minutes of power interruptions, a metric called SAIDI (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. Over the same period, SAIFI (outage events per customer) was 1.98, putting the typical customer at roughly 2 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 106.8 minutes, the gap between that figure and the headline 2037.5 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Public Service Co of Oklahoma, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI climbed from 263.7 to 2037.5 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.
SAIFI
1.98 interruptions/yr
Events per customer (2023)
Customers
575,929
Served in Oklahoma
SAIDI vs. National Average (180 min) 100.0%
2038 minutes per customer per year
Power-out minutes per year (2023)
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 263.7 | 88.9 | 1.412 | 559,804 |
| 2021 | 138.1 | 113.1 | 1.393 | 565,565 |
| 2022 | 122.8 | 109.8 | 1.362 | 570,502 |
| 2023 | 2037.5 | 106.8 | 1.975 | 572,956 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Public Service Co of Oklahoma serves 284 ZIP codes in Oklahoma.
7300273004730067300973010730117301573017730187302173023730247302973038730407304173042730477304873052730537305573059730627306573067730797308273089730927309673438734507345673461734637350173502735037350573506735077352073521735227352673527735307353873539735417354473546735477354873549735507355173552735537355673559735647356673567735687357073571735737360173620736227362473625736267362773628736327363873639736417364473645736477364873650736517365473655736607366173662736647366973673738017383274001740027400374004740057400674008740117401274013740147401574016740177401974021740277402974031740337403574036740377404274048740507405174053740547405574056740587406074061740637406674070740737408074082740847410174102741037410474105741067410774108741107411274114741157411674117741197412074121741267412774128741297413074131741327413374134741357413674137741417414574146741477414874149741507415274153741557415674157741587415974169741707417174172741827418674187741927419374301743307433174332743377434074344743457434674349 and 84 more
Frequently Asked Questions
How reliable is Public Service Co of Oklahoma?
Public Service Co of Oklahoma had a SAIDI of 2037.5 minutes in 2023 including major weather events, but 106.8 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 Public Service Co of Oklahoma?
Public Service Co of Oklahoma is classified as a IOU serving Oklahoma.
How many customers does Public Service Co of Oklahoma serve?
Public Service Co of Oklahoma serves approximately 575,929 customers in Oklahoma.
How has Public Service Co of Oklahoma's reliability changed over time?
Public Service Co of Oklahoma 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
- Oklahoma
- Customers
- 575,929
- Annual Revenue
- $1.93B
- EIA ID
- 15474
Explore
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.