County annual report · FIPS 06003
2025 Alpine County, CA Power Outage Report
In 2025, customers in Alpine County, CA went without power for an average of 73.7 hours, a total of 65K customer-hours (California average 7.6 hours). That ranks 2nd worst of 57 California counties and 44th of 3,000 nationally.
Compared with CA, the US and 2024
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Alpine County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 15, 2025 15:45 | October 15, 2025 20:45 | 5h | 2,748 | 5,100 |
| 2 | November 11, 2025 19:00 | November 12, 2025 19:15 | 1d | 1,204 | 13K |
| 3 | November 5, 2025 09:00 | November 6, 2025 09:15 | 1d | 1,203 | 22K |
| 4 | November 10, 2025 15:00 | November 11, 2025 00:45 | 9h 45m | 661 | 6,445 |
| 5 | March 5, 2025 15:45 | March 5, 2025 19:15 | 3h 30m | 633 | 1,899 |
| 6 | June 10, 2025 03:00 | June 10, 2025 05:00 | 2h | 633 | 1,266 |
| 7 | May 24, 2025 15:15 | May 24, 2025 16:00 | 45m | 632 | 474 |
| 8 | June 1, 2025 16:45 | June 1, 2025 18:30 | 1h 45m | 632 | 1,106 |
| 9 | June 5, 2025 23:30 | June 6, 2025 00:15 | 45m | 632 | 474 |
| 10 | July 6, 2025 19:30 | July 6, 2025 20:45 | 1h 15m | 631 | 789 |
Outage episodes by size in 2025: 20 reached 100+ customers, 3 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 2025, 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. | 2024 | 8.5 hrs | 2.15 | 4.6 hrs | 1.82 |
| Liberty Utilities | 2024 | 12.4 hrs | 2.57 | 8.3 hrs | 2.37 |
| 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 2025; 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, 2025, 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/2025/california/alpine-county