County annual report · FIPS 06003
2023 Alpine County, CA Power Outage Report
In 2023, customers in Alpine County, CA went without power for an average of 17.9 hours, a total of 16K customer-hours (California average 7.9 hours). That ranks 21st worst of 57 California counties and 471st of 2,977 nationally.
Compared with CA, the US and 2022
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in Alpine County, 2023
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 25, 2023 02:00 | September 25, 2023 03:15 | 1h 15m | 605 | 756 |
| 2 | November 18, 2023 20:00 | November 18, 2023 21:15 | 1h 15m | 597 | 746 |
| 3 | October 11, 2023 20:15 | October 11, 2023 20:30 | 15m | 366 | 92 |
| 4 | January 31, 2023 04:00 | January 31, 2023 06:00 | 2h | 135 | 270 |
| 5 | November 9, 2023 16:45 | November 10, 2023 03:45 | 11h | 108 | 247 |
| 6 | March 9, 2023 20:30 | March 10, 2023 03:00 | 6h 30m | 76 | 44 |
| 7 | July 30, 2023 15:00 | July 30, 2023 21:30 | 6h 30m | 76 | 255 |
| 8 | April 4, 2023 09:15 | April 5, 2023 09:30 | 1d | 67 | 1,605 |
| 9 | June 8, 2023 23:45 | June 10, 2023 14:00 | 1d 14h | 66 | 1,879 |
| 10 | September 7, 2023 15:15 | September 9, 2023 20:30 | 2d 5h | 66 | 2,571 |
Outage episodes by size in 2023: 5 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 2023, 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. | 2023 | 11.9 hrs | 2.22 | 4.3 hrs | 1.56 |
| Liberty Utilities | 2023 | 4.4 hrs | 1.97 | 4.4 hrs | 1.97 |
| 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 2023; 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, 2023, 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/2023/california/alpine-county