County annual report · FIPS 06113
2015 Yolo County, CA Power Outage Report
In 2015, customers in Yolo County, CA went without power for an average of 3.8 hours, a total of 384K customer-hours (California average 3.1 hours). That ranks 6th worst of 23 California counties and 747th of 2,484 nationally.
Compared with CA, the US
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Yolo County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 25, 2015 16:30 | March 26, 2015 03:45 | 11h 15m | 20,173 | 5,240 |
| 2 | July 11, 2015 11:45 | July 11, 2015 23:00 | 11h 15m | 18,815 | 23K |
| 3 | March 10, 2015 13:30 | March 11, 2015 03:00 | 13h 30m | 17,576 | 4,897 |
| 4 | July 27, 2015 15:15 | July 29, 2015 07:15 | 1d 16h | 16,393 | 12K |
| 5 | February 12, 2015 14:00 | February 13, 2015 06:45 | 16h 45m | 15,352 | 3,921 |
| 6 | October 31, 2015 04:45 | November 1, 2015 03:30 | 22h 45m | 15,305 | 12K |
| 7 | December 5, 2015 16:30 | December 5, 2015 20:45 | 4h 15m | 15,084 | 3,802 |
| 8 | December 7, 2015 13:45 | December 8, 2015 06:15 | 16h 30m | 15,084 | 3,979 |
| 9 | December 1, 2015 11:00 | December 3, 2015 06:30 | 1d 19h | 14,341 | 12K |
| 10 | November 13, 2015 14:00 | November 18, 2015 15:00 | 5d 1h | 14,013 | 10K |
Outage episodes by size in 2015: 237 reached 100+ customers, 28 reached 1,000+ customers, 20 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 2015, 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. | 2015 | 2.5 hrs | 1.05 | 1.6 hrs | 0.87 |
| 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 n/a of California's customers in 2015; 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, 2015, 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/2015/california/yolo-county