County annual report · FIPS 06113
2018 Yolo County, CA Power Outage Report
In 2018, customers in Yolo County, CA went without power for an average of 1.7 hours, a total of 169K customer-hours (California average 3.7 hours). That ranks 39th worst of 57 California counties and 2011th of 2,798 nationally.
Compared with CA, the US and 2016
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Yolo County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 17, 2018 01:45 | October 18, 2018 00:00 | 22h 15m | 3,567 | 5,272 |
| 2 | June 21, 2018 09:15 | June 21, 2018 21:15 | 12h | 3,343 | 8,729 |
| 3 | October 5, 2018 00:45 | October 5, 2018 09:15 | 8h 30m | 2,954 | 1,553 |
| 4 | July 10, 2018 16:15 | July 11, 2018 03:00 | 10h 45m | 2,820 | 4,567 |
| 5 | October 15, 2018 16:15 | October 15, 2018 23:15 | 7h | 2,362 | 2,380 |
| 6 | November 19, 2018 19:00 | November 20, 2018 22:00 | 1d 3h | 2,354 | 1,959 |
| 7 | August 7, 2018 05:45 | August 8, 2018 08:45 | 1d 3h | 2,090 | 8,234 |
| 8 | July 16, 2018 23:45 | July 17, 2018 12:45 | 13h | 2,061 | 6,501 |
| 9 | June 16, 2018 16:15 | June 19, 2018 04:45 | 2d 12h | 2,055 | 8,472 |
| 10 | November 29, 2018 00:15 | November 30, 2018 10:15 | 1d 10h | 1,726 | 19K |
Outage episodes by size in 2018: 78 reached 100+ customers, 16 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 Yolo County reported on EIA Form 861 for 2018, 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 |
|---|---|---|---|---|---|
| Pacific Gas & Electric Co. | 2018 | 5.0 hrs | 1.18 | 2.1 hrs | 1.08 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Sacramento Municipal Util Dist | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of California's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 101,509 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. Yolo County has data for 2015–2016, 2018–2025.
Cite this report
MassOutage (massoutage.com), Yolo County, CA annual power outage report, 2018, 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/2018/california/yolo-county