County annual report · FIPS 48395
2021 Robertson County, TX Power Outage Report
In 2021, customers in Robertson County, TX went without power for an average of 189.4 hours, a total of 522K customer-hours (Texas average 21.0 hours). That ranks 9th worst of 252 Texas counties and 29th of 2,974 nationally.
Compared with TX, the US and 2020
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Robertson County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 10, 2021 18:45 | January 14, 2021 05:00 | 3d 10h | 5,172 | 151K |
| 2 | February 11, 2021 13:45 | February 24, 2021 06:30 | 12d 16h | 4,312 | 306K |
| 3 | May 29, 2021 01:45 | May 29, 2021 23:15 | 21h 30m | 1,748 | 8,218 |
| 4 | October 28, 2021 12:00 | October 29, 2021 03:30 | 15h 30m | 1,347 | 2,097 |
| 5 | December 18, 2021 10:15 | December 19, 2021 00:30 | 14h 15m | 1,210 | 2,079 |
| 6 | October 9, 2021 11:30 | October 9, 2021 13:30 | 2h | 1,158 | 1,997 |
| 7 | April 24, 2021 11:15 | April 24, 2021 17:30 | 6h 15m | 1,151 | 4,899 |
| 8 | June 13, 2021 19:15 | June 14, 2021 01:15 | 6h | 905 | 2,073 |
| 9 | September 23, 2021 07:30 | September 23, 2021 13:45 | 6h 15m | 710 | 4,039 |
| 10 | July 6, 2021 08:15 | July 6, 2021 12:15 | 4h | 686 | 2,744 |
Outage episodes by size in 2021: 49 reached 100+ customers, 7 reached 1,000+ customers, 0 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 Robertson County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Entergy Texas Inc. | 2021 | 16.7 hrs | 3.31 | 4.7 hrs | 2.02 |
| Navasota Valley Elec Coop, Inc | 2021 | 527.1 hrs | 10.31 | 7.9 hrs | 3.41 |
| Texas-New Mexico Power Co | - | - | - | - | - |
| City of Bryan - (TX) | - | - | - | - | - |
| City of Hearne - (TX) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 94% of Texas's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,755 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. Robertson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Robertson County, TX annual power outage report, 2021, 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/2021/texas/robertson-county