County annual report · FIPS 06051
2018 Mono County, CA Power Outage Report
In 2018, customers in Mono County, CA went without power for an average of 18.9 hours, a total of 105K customer-hours (California average 3.7 hours). That ranks 6th worst of 57 California counties and 299th of 2,798 nationally.
Compared with CA, the US and 2017
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Mono 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 | July 1, 2018 16:15 | July 2, 2018 00:15 | 8h | 2,893 | 6,623 |
| 2 | August 29, 2018 16:30 | August 30, 2018 01:15 | 8h 45m | 2,212 | 1,851 |
| 3 | January 17, 2018 16:45 | January 17, 2018 20:30 | 3h 45m | 1,619 | 1,561 |
| 4 | October 16, 2018 15:15 | October 17, 2018 03:15 | 12h | 1,424 | 2,043 |
| 5 | February 17, 2018 21:00 | February 18, 2018 03:45 | 6h 45m | 1,365 | 2,205 |
| 6 | July 5, 2018 15:30 | July 5, 2018 23:00 | 7h 30m | 1,064 | 6,658 |
| 7 | August 23, 2018 05:15 | August 23, 2018 09:30 | 4h 15m | 995 | 3,284 |
| 8 | October 12, 2018 16:00 | October 13, 2018 01:15 | 9h 15m | 757 | 4,230 |
| 9 | February 21, 2018 14:15 | February 21, 2018 15:30 | 1h 15m | 658 | 497 |
| 10 | March 28, 2018 23:15 | March 29, 2018 00:45 | 1h 30m | 657 | 673 |
Outage episodes by size in 2018: 45 reached 100+ customers, 6 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 Mono 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 |
|---|---|---|---|---|---|
| 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 91% of California's customers in 2018; 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, 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/mono-county