County annual report · FIPS 06079
2020 San Luis Obispo County, CA Power Outage Report
In 2020, customers in San Luis Obispo County, CA went without power for an average of 3.9 hours, a total of 493K customer-hours (California average 6.3 hours). That ranks 43rd worst of 57 California counties and 1631st of 3,019 nationally.
Compared with CA, the US and 2019
Coverage line is EAGLE-I's share of California customers tracked each year.
Biggest outages in San Luis Obispo County, 2020
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 1, 2020 06:45 | February 2, 2020 17:30 | 1d 10h | 18,921 | 91K |
| 2 | December 28, 2020 05:15 | December 29, 2020 15:45 | 1d 10h | 6,760 | 14K |
| 3 | March 20, 2020 21:30 | March 21, 2020 21:30 | 1d | 6,571 | 5,154 |
| 4 | June 27, 2020 14:30 | June 27, 2020 19:45 | 5h 15m | 6,066 | 3,038 |
| 5 | November 17, 2020 14:45 | November 17, 2020 23:45 | 9h | 5,783 | 10K |
| 6 | July 30, 2020 16:15 | August 4, 2020 07:00 | 4d 14h | 5,152 | 10K |
| 7 | October 22, 2020 04:00 | October 22, 2020 07:45 | 3h 45m | 4,209 | 9,668 |
| 8 | August 15, 2020 15:00 | August 20, 2020 05:45 | 4d 14h | 3,902 | 33K |
| 9 | June 22, 2020 13:15 | June 24, 2020 06:15 | 1d 17h | 3,372 | 17K |
| 10 | September 6, 2020 20:15 | September 8, 2020 22:30 | 2d 2h | 3,338 | 18K |
Outage episodes by size in 2020: 192 reached 100+ customers, 38 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 San Luis Obispo County reported on EIA Form 861 for 2020, 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. | 2020 | 7.4 hrs | 1.34 | 2.3 hrs | 1.04 |
| Central Coast Community Energy | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 94% of California's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 125,727 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. San Luis Obispo County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), San Luis Obispo County, CA annual power outage report, 2020, 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/2020/california/san-luis-obispo-county