County annual report · FIPS 06047
2021 Merced County, CA Power Outage Report
In 2021, customers in Merced County, CA went without power for an average of 7.9 hours, a total of 441K customer-hours (California average 6.6 hours). That ranks 31st worst of 57 California counties and 953rd 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 Merced 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 | November 2, 2021 00:30 | November 5, 2021 00:45 | 3d | 11,688 | 32K |
| 2 | January 27, 2021 03:30 | February 2, 2021 03:00 | 5d 23h | 9,587 | 149K |
| 3 | October 11, 2021 14:30 | October 13, 2021 04:15 | 1d 13h | 6,473 | 34K |
| 4 | March 10, 2021 09:00 | March 11, 2021 00:45 | 15h 45m | 4,203 | 5,526 |
| 5 | December 27, 2021 17:00 | December 31, 2021 00:15 | 3d 7h | 3,159 | 2,594 |
| 6 | September 11, 2021 11:30 | September 12, 2021 19:00 | 1d 7h | 3,083 | 28K |
| 7 | July 30, 2021 11:00 | July 30, 2021 13:15 | 2h 15m | 2,681 | 3,735 |
| 8 | May 26, 2021 12:45 | May 26, 2021 23:30 | 10h 45m | 2,588 | 2,301 |
| 9 | December 2, 2021 16:30 | December 3, 2021 02:30 | 10h | 2,171 | 5,223 |
| 10 | October 28, 2021 16:00 | October 29, 2021 00:15 | 8h 15m | 2,018 | 857 |
Outage episodes by size in 2021: 120 reached 100+ customers, 24 reached 1,000+ customers, 1 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 Merced 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 |
| Turlock Irrigation District | 2021 | 1.8 hrs | 1.12 | 75 min | 0.88 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Merced Irrigation District | - | - | - | - | - |
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 ÷ 56,077 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. Merced County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Merced 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/merced-county