County annual report · FIPS 06061
2021 Placer County, CA Power Outage Report
In 2021, customers in Placer County, CA went without power for an average of 11.4 hours, a total of 2.1M customer-hours (California average 6.6 hours). That ranks 24th worst of 57 California counties and 709th of 2,974 nationally.
Compared with CA, the US and 2020
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Placer 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 | September 15, 2021 14:45 | October 21, 2021 02:00 | 35d 11h | 16,918 | 173K |
| 2 | February 25, 2021 16:00 | February 26, 2021 02:00 | 10h | 15,044 | 9,570 |
| 3 | December 13, 2021 14:00 | December 21, 2021 04:30 | 7d 14h | 11,120 | 280K |
| 4 | January 27, 2021 02:45 | January 31, 2021 10:15 | 4d 7h | 10,390 | 156K |
| 5 | December 24, 2021 10:00 | December 31, 2021 00:15 | 6d 14h | 10,189 | 854K |
| 6 | February 14, 2021 05:30 | February 17, 2021 15:00 | 3d 9h | 6,976 | 25K |
| 7 | September 9, 2021 02:45 | September 13, 2021 21:00 | 4d 18h | 6,920 | 88K |
| 8 | May 11, 2021 16:15 | June 21, 2021 23:15 | 41d 7h | 5,944 | 55K |
| 9 | January 25, 2021 08:30 | January 27, 2021 00:45 | 1d 16h | 5,157 | 24K |
| 10 | October 21, 2021 05:16 | November 20, 2021 02:45 | 29d 21h | 4,538 | 142K |
Outage episodes by size in 2021: 67 reached 100+ customers, 20 reached 1,000+ customers, 5 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 Placer 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 |
|---|---|---|---|---|---|
| Pacific Gas & Electric Co. | 2021 | 10.4 hrs | 1.84 | 3.6 hrs | 1.32 |
| Liberty Utilities | 2021 | 16.8 hrs | 4.60 | 11.7 hrs | 3.86 |
| Truckee Donner P U D | 2018 | 5.0 hrs | 0.88 | - | - |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Sacramento Municipal Util Dist | - | - | - | - | - |
| City of Roseville - (CA) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of California's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 187,525 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. Placer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Placer County, CA 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/california/placer-county