County annual report · FIPS 06003
2018 Alpine County, CA Power Outage Report
In 2018, customers in Alpine County, CA went without power for an average of 0.9 hours, a total of 828 customer-hours (California average 3.7 hours). That ranks 51st worst of 57 California counties and 2334th 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 Alpine 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 9, 2018 02:45 | July 9, 2018 03:00 | 15m | 588 | 147 |
| 2 | July 19, 2018 19:15 | July 19, 2018 20:15 | 1h | 588 | 221 |
| 3 | July 6, 2018 13:15 | July 6, 2018 14:15 | 1h | 98 | 98 |
| 4 | November 27, 2018 18:15 | November 27, 2018 19:00 | 45m | 98 | 64 |
| 5 | November 28, 2018 02:15 | November 28, 2018 03:00 | 45m | 98 | 39 |
| 6 | January 25, 2018 10:45 | January 25, 2018 13:00 | 2h 15m | 73 | 20 |
| 7 | April 7, 2018 12:45 | April 7, 2018 14:30 | 1h 45m | 24 | 24 |
| 8 | August 15, 2018 17:15 | August 16, 2018 00:15 | 7h | 18 | 126 |
| 9 | September 13, 2018 17:30 | September 13, 2018 19:15 | 1h 45m | 18 | 32 |
| 10 | March 2, 2018 01:30 | March 2, 2018 03:45 | 2h 15m | 7 | 10 |
Outage episodes by size in 2018: 2 reached 100+ customers, 0 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 Alpine 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 |
|---|---|---|---|---|---|
| Pacific Gas & Electric Co. | 2018 | 5.0 hrs | 1.18 | 2.1 hrs | 1.08 |
| Liberty Utilities | 2018 | 4.8 hrs | 2.19 | 4.8 hrs | 2.19 |
| Kirkwood Meadows PUD | - | - | - | - | - |
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 ÷ 882 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. Alpine County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Alpine 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/alpine-county