County annual report · FIPS 08069
2020 Larimer County, CO Power Outage Report
In 2020, customers in Larimer County, CO went without power for an average of 2.9 hours, a total of 453K customer-hours (Colorado average 2.2 hours). That ranks 18th worst of 57 Colorado counties and 1898th of 3,019 nationally.
Compared with CO, the US and 2019
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Larimer 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 | June 6, 2020 21:15 | June 7, 2020 09:15 | 12h | 5,163 | 16K |
| 2 | April 30, 2020 13:45 | May 1, 2020 18:15 | 1d 4h | 3,024 | 16K |
| 3 | September 13, 2020 02:15 | October 15, 2020 08:45 | 32d 6h | 2,734 | 235K |
| 4 | August 20, 2020 06:15 | August 20, 2020 06:45 | 30m | 2,055 | 1,024 |
| 5 | August 16, 2020 07:45 | August 16, 2020 10:00 | 2h 15m | 1,760 | 1,761 |
| 6 | June 7, 2020 13:15 | June 7, 2020 20:30 | 7h 15m | 1,741 | 3,596 |
| 7 | November 21, 2020 03:45 | November 21, 2020 05:45 | 2h | 1,609 | 2,808 |
| 8 | September 8, 2020 00:00 | September 11, 2020 08:15 | 3d 8h | 1,497 | 15K |
| 9 | August 12, 2020 23:00 | August 13, 2020 07:45 | 8h 45m | 1,421 | 4,441 |
| 10 | September 5, 2020 12:45 | September 6, 2020 01:45 | 13h | 1,353 | 2,079 |
Outage episodes by size in 2020: 66 reached 100+ customers, 15 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 Larimer 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 |
|---|---|---|---|---|---|
| Public Service Co of Colorado | 2020 | 2.3 hrs | 1.03 | 83 min | 0.85 |
| Mountain Parks Electric, Inc | 2020 | 14.8 hrs | 0.90 | 90 min | 0.40 |
| Poudre Valley REA, Inc | 2020 | 2.3 hrs | 1.04 | 1.8 hrs | 0.95 |
| City of Loveland - (CO) | 2020 | 30 min | 0.34 | 30 min | 0.34 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| High West Energy, Inc | - | - | - | - | - |
| Town of Estes Park | - | - | - | - | - |
| City of Fort Collins - (CO) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 84% of Colorado's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 154,680 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. Larimer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Larimer County, CO 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/colorado/larimer-county