County annual report · FIPS 06051
2019 Mono County, CA Power Outage Report
In 2019, customers in Mono County, CA went without power for an average of 65.2 hours, a total of 362K customer-hours (California average 9.6 hours). That ranks 14th worst of 57 California counties and 41st of 2,945 nationally.
Compared with CA, the US and 2018
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Mono County, 2019
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 16, 2019 16:30 | September 17, 2019 01:30 | 9h | 16,672 | 16K |
| 2 | October 5, 2019 10:30 | October 6, 2019 00:00 | 13h 30m | 15,764 | 155K |
| 3 | November 14, 2019 06:30 | November 14, 2019 20:45 | 14h 15m | 3,135 | 32K |
| 4 | November 25, 2019 16:30 | November 26, 2019 02:15 | 9h 45m | 2,552 | 23K |
| 5 | September 17, 2019 05:00 | September 18, 2019 10:00 | 1d 5h | 2,507 | 13K |
| 6 | September 13, 2019 16:30 | September 13, 2019 20:30 | 4h | 2,186 | 1,100 |
| 7 | October 23, 2019 16:30 | October 23, 2019 20:00 | 3h 30m | 1,826 | 523 |
| 8 | October 16, 2019 15:30 | October 17, 2019 11:15 | 19h 45m | 1,404 | 25K |
| 9 | October 11, 2019 15:30 | October 11, 2019 23:15 | 7h 45m | 1,054 | 601 |
| 10 | November 12, 2019 16:30 | November 13, 2019 06:45 | 14h 15m | 971 | 13K |
Outage episodes by size in 2019: 69 reached 100+ customers, 9 reached 1,000+ customers, 2 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 Mono County reported on EIA Form 861 for 2019, 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 |
|---|---|---|---|---|---|
| Southern California Edison Co | 2018 | 2.3 hrs | 0.87 | 71 min | 0.72 |
| Liberty Utilities | 2018 | 4.8 hrs | 2.19 | 4.8 hrs | 2.19 |
| Valley Electric Assn, Inc | 2018 | 1.6 hrs | 1.50 | 69 min | 1.00 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 93% of California's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,551 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. Mono County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mono County, CA annual power outage report, 2019, 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/2019/california/mono-county