County annual report · FIPS 40143
2020 Tulsa County, OK Power Outage Report
In 2020, customers in Tulsa County, OK went without power for an average of 2.6 hours, a total of 795K customer-hours (Oklahoma average 27.7 hours). That ranks 67th worst of 77 Oklahoma counties and 2020th of 3,019 nationally.
Compared with OK, the US and 2019
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Tulsa County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 11, 2020 15:00 | July 15, 2020 05:30 | 3d 14h | 34,075 | 334K |
| 2 | June 13, 2020 21:45 | June 14, 2020 08:15 | 10h 30m | 24,639 | 56K |
| 3 | July 29, 2020 13:00 | August 1, 2020 03:15 | 2d 14h | 9,702 | 22K |
| 4 | April 16, 2020 12:45 | April 17, 2020 03:45 | 15h | 6,569 | 6,242 |
| 5 | December 27, 2020 14:15 | December 31, 2020 00:15 | 3d 10h | 6,343 | 5,471 |
| 6 | March 25, 2020 12:00 | March 26, 2020 07:45 | 19h 45m | 5,900 | 3,560 |
| 7 | February 11, 2020 14:00 | February 12, 2020 11:00 | 21h | 5,861 | 4,530 |
| 8 | April 22, 2020 12:45 | April 24, 2020 05:00 | 1d 16h | 4,305 | 9,112 |
| 9 | December 7, 2020 12:30 | December 8, 2020 02:15 | 13h 45m | 4,191 | 1,258 |
| 10 | August 13, 2020 08:15 | August 14, 2020 10:15 | 1d 2h | 3,841 | 22K |
Outage episodes by size in 2020: 166 reached 100+ customers, 64 reached 1,000+ customers, 2 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Tulsa County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Public Service Co of Oklahoma | 2020 | 4.4 hrs | 1.41 | 89 min | 1.03 |
| East Central Oklahoma Elec Coop Inc | 2020 | 5.4 hrs | 1.68 | 4.0 hrs | 1.60 |
| Indian Electric Coop, Inc | 2020 | 14.7 hrs | 1.55 | 88 min | 0.80 |
| Verdigris Valley Elec Coop Inc | 2013 | 7.1 hrs | 2.35 | 5.0 hrs | 1.98 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| City of Skiatook - (OK) | - | - | - | - | - |
| City of Collinsville - (OK) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 93% of Oklahoma's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 307,617 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Tulsa County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Tulsa County, OK annual power outage report, 2020, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2020/oklahoma/tulsa-county