County annual report · FIPS 06003
2017 Alpine County, CA Power Outage Report
In 2017, customers in Alpine County, CA went without power for an average of 0.2 hours, a total of 151 customer-hours (California average 2.2 hours). That ranks 18th worst of 47 California counties and 2503rd of 2,786 nationally.
Compared with CA, the US
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Alpine County, 2017
The 3 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 17, 2017 05:15 | December 17, 2017 06:00 | 45m | 473 | 122 |
| 2 | November 26, 2017 17:15 | November 26, 2017 23:45 | 6h 30m | 4 | 26 |
| 3 | December 27, 2017 18:15 | December 27, 2017 21:15 | 3h | 1 | 3 |
Outage episodes by size in 2017: 1 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 2017, 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. | 2017 | 6.2 hrs | 1.55 | 1.9 hrs | 0.96 |
| Liberty Utilities | 2017 | 26.6 hrs | 3.97 | 12.9 hrs | 2.86 |
| 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 n/a of California's customers in 2017; 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, 2017, 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/2017/california/alpine-county