County annual report · FIPS 06043
2023 Mariposa County, CA Power Outage Report
In 2023, customers in Mariposa County, CA went without power for an average of 111.7 hours, a total of 811K customer-hours (California average 7.9 hours). That ranks 3rd worst of 57 California counties and 21st 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 Mariposa 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 | February 24, 2023 06:00 | March 18, 2023 23:00 | 22d 17h | 10,887 | 620K |
| 2 | January 5, 2023 07:15 | January 7, 2023 00:45 | 1d 17h | 4,450 | 9,240 |
| 3 | August 18, 2023 00:00 | August 18, 2023 03:30 | 3h 30m | 3,329 | 9,998 |
| 4 | August 19, 2023 23:00 | August 20, 2023 05:45 | 6h 45m | 3,162 | 4,726 |
| 5 | August 25, 2023 15:15 | August 26, 2023 01:30 | 10h 15m | 2,899 | 1,978 |
| 6 | December 3, 2023 02:45 | December 3, 2023 18:00 | 15h 15m | 2,878 | 3,844 |
| 7 | December 15, 2023 15:30 | December 16, 2023 04:30 | 13h | 2,787 | 5,411 |
| 8 | July 10, 2023 01:00 | July 10, 2023 19:30 | 18h 30m | 2,694 | 16K |
| 9 | September 11, 2023 00:30 | September 11, 2023 04:15 | 3h 45m | 2,693 | 4,368 |
| 10 | August 22, 2023 16:15 | August 22, 2023 21:00 | 4h 45m | 2,692 | 1,900 |
Outage episodes by size in 2023: 64 reached 100+ customers, 18 reached 1,000+ customers, 1 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 Mariposa 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 |
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 ÷ 7,262 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. Mariposa County has data for 2018–2025.
Cite this report
MassOutage (massoutage.com), Mariposa 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/mariposa-county