County annual report · FIPS 48451
2020 Tom Green County, TX Power Outage Report
In 2020, customers in Tom Green County, TX went without power for an average of 7.9 hours, a total of 458K customer-hours (Texas average 5.3 hours). That ranks 123rd worst of 254 Texas counties and 975th of 3,019 nationally.
Compared with TX, the US and 2019
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Tom Green 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 | August 15, 2020 16:00 | August 30, 2020 02:00 | 14d 10h | 20,760 | 168K |
| 2 | April 11, 2020 21:45 | April 16, 2020 23:30 | 5d 1h | 16,151 | 25K |
| 3 | November 17, 2020 05:45 | December 11, 2020 04:45 | 23d 23h | 10,082 | 27K |
| 4 | June 22, 2020 12:30 | July 15, 2020 02:15 | 22d 13h | 8,786 | 58K |
| 5 | April 17, 2020 02:30 | May 20, 2020 16:45 | 33d 14h | 8,706 | 41K |
| 6 | July 15, 2020 03:15 | August 6, 2020 06:30 | 22d 3h | 4,991 | 12K |
| 7 | May 20, 2020 23:00 | June 19, 2020 23:30 | 30d | 4,759 | 41K |
| 8 | August 30, 2020 23:30 | November 17, 2020 04:45 | 78d 5h | 4,617 | 45K |
| 9 | February 25, 2020 11:30 | March 17, 2020 04:45 | 20d 17h | 3,148 | 8,991 |
| 10 | January 1, 2020 00:00 | February 4, 2020 05:00 | 34d 5h | 2,560 | 15K |
Outage episodes by size in 2020: 17 reached 100+ customers, 12 reached 1,000+ customers, 3 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 Tom Green 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 |
|---|---|---|---|---|---|
| Oncor Electric Delivery Company LLC | 2017 | 3.4 hrs | 1.69 | 2.4 hrs | 1.49 |
| AEP Texas Central Company | 2020 | 8.6 hrs | 1.88 | 2.8 hrs | 1.47 |
| AEP Texas North Company | 2020 | 4.7 hrs | 1.67 | 1.9 hrs | 1.25 |
| Concho Valley Elec Coop Inc | 2020 | 7.9 hrs | 3.88 | 7.9 hrs | 3.88 |
| Southwest Texas Elec Coop, Inc | - | - | - | - | - |
| Coleman County Elec Coop, Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 63% of Texas's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 58,381 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. Tom Green County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Tom Green County, TX 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/texas/tom-green-county