County annual report · FIPS 08069
2018 Larimer County, CO Power Outage Report
In 2018, customers in Larimer County, CO went without power for an average of 0.8 hours, a total of 123K customer-hours (Colorado average 1.6 hours). That ranks 34th worst of 49 Colorado counties and 2390th of 2,798 nationally.
Compared with CO, the US and 2017
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Larimer County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 15, 2018 15:00 | March 16, 2018 22:15 | 1d 7h | 5,836 | 25K |
| 2 | July 30, 2018 20:15 | July 31, 2018 21:00 | 1d | 4,404 | 2,404 |
| 3 | February 5, 2018 13:00 | February 6, 2018 03:00 | 14h | 1,858 | 11K |
| 4 | February 14, 2018 13:30 | February 14, 2018 23:30 | 10h | 1,714 | 3,021 |
| 5 | July 18, 2018 18:30 | July 18, 2018 21:15 | 2h 45m | 1,611 | 2,421 |
| 6 | October 1, 2018 14:00 | October 1, 2018 19:45 | 5h 45m | 1,607 | 2,013 |
| 7 | May 3, 2018 09:30 | May 4, 2018 01:45 | 16h 15m | 1,511 | 6,245 |
| 8 | November 28, 2018 15:15 | November 29, 2018 02:45 | 11h 30m | 1,212 | 1,547 |
| 9 | May 4, 2018 16:00 | May 4, 2018 20:00 | 4h | 905 | 235 |
| 10 | July 8, 2018 22:15 | July 9, 2018 02:45 | 4h 30m | 897 | 2,449 |
Outage episodes by size in 2018: 67 reached 100+ customers, 8 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 2018, 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 | 2018 | 1.9 hrs | 1.02 | 1.6 hrs | 0.98 |
| Poudre Valley REA, Inc | 2018 | 1.6 hrs | 1.05 | 1.6 hrs | 1.05 |
| City of Loveland - (CO) | 2018 | 21 min | 0.22 | 21 min | 0.22 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| High West Energy, Inc | - | - | - | - | - |
| Mountain Parks Electric, 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 88% of Colorado's customers in 2018; 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, 2018, 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/2018/colorado/larimer-county