County annual report · FIPS 06035
2025 Lassen County, CA Power Outage Report
In 2025, customers in Lassen County, CA went without power for an average of 1.0 hours, a total of 16K customer-hours (California average 7.6 hours). That ranks 56th worst of 57 California counties and 2749th 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 Lassen 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 | November 5, 2025 13:30 | November 5, 2025 18:45 | 5h 15m | 767 | 2,976 |
| 2 | August 26, 2025 18:00 | August 27, 2025 07:45 | 13h 45m | 664 | 3,541 |
| 3 | November 19, 2025 05:00 | November 19, 2025 05:30 | 30m | 624 | 294 |
| 4 | September 10, 2025 05:00 | September 10, 2025 09:15 | 4h 15m | 497 | 2,112 |
| 5 | August 2, 2025 00:00 | August 3, 2025 01:30 | 1d 1h | 414 | 4,057 |
| 6 | July 26, 2025 23:15 | July 27, 2025 00:30 | 1h 15m | 288 | 309 |
| 7 | August 26, 2025 05:45 | August 26, 2025 09:15 | 3h 30m | 255 | 857 |
| 8 | June 10, 2025 21:15 | June 10, 2025 22:15 | 1h | 224 | 224 |
| 9 | June 18, 2025 21:15 | June 18, 2025 22:00 | 45m | 186 | 140 |
| 10 | April 8, 2025 15:00 | April 8, 2025 22:30 | 7h 30m | 72 | 540 |
Outage episodes by size in 2025: 9 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 Lassen 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 |
| Lassen Municipal Utility District | 2018 | 6.6 hrs | 1.53 | 6.6 hrs | 1.53 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Plumas-Sierra Rural Elec Coop | - | - | - | - | - |
| Surprise Valley Electrification | - | - | - | - | - |
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 ÷ 15,440 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. Lassen County has data for 2018–2025.
Cite this report
MassOutage (massoutage.com), Lassen 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/lassen-county