County annual report · FIPS 08123
2021 Weld County, CO Power Outage Report
In 2021, customers in Weld County, CO went without power for an average of 8.4 hours, a total of 1.0M customer-hours (Colorado average 2.8 hours). That ranks 8th worst of 52 Colorado counties and 907th of 2,974 nationally.
Compared with CO, the US and 2020
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Weld County, 2021
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 14, 2021 07:15 | March 18, 2021 12:00 | 4d 4h | 31,733 | 715K |
| 2 | November 26, 2021 05:45 | November 26, 2021 17:45 | 12h | 6,366 | 23K |
| 3 | January 14, 2021 04:15 | January 15, 2021 04:15 | 1d | 4,682 | 24K |
| 4 | July 16, 2021 20:45 | July 17, 2021 02:30 | 5h 45m | 4,001 | 6,479 |
| 5 | June 14, 2021 00:00 | July 2, 2021 01:00 | 18d 1h | 3,364 | 45K |
| 6 | July 27, 2021 23:45 | August 8, 2021 11:15 | 11d 11h | 3,314 | 31K |
| 7 | August 24, 2021 11:45 | August 24, 2021 17:30 | 5h 45m | 2,867 | 5,737 |
| 8 | August 25, 2021 01:30 | August 25, 2021 01:45 | 15m | 2,866 | 717 |
| 9 | January 2, 2021 10:30 | January 2, 2021 10:45 | 15m | 2,474 | 619 |
| 10 | May 10, 2021 16:15 | May 10, 2021 22:00 | 5h 45m | 2,437 | 7,914 |
Outage episodes by size in 2021: 140 reached 100+ customers, 31 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 Weld County reported on EIA Form 861 for 2021, 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 | 2021 | 3.0 hrs | 1.20 | 2.2 hrs | 1.00 |
| United Power, Inc | 2021 | 85 min | 0.80 | 68 min | - |
| Poudre Valley REA, Inc | 2021 | 5.5 hrs | 1.57 | 77 min | 0.84 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Highline Electric Assn | - | - | - | - | - |
| High West Energy, Inc | - | - | - | - | - |
| Morgan County Rural Elec Assn | - | - | - | - | - |
| City of Longmont | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 83% of Colorado's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 122,323 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. Weld County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Weld County, CO annual power outage report, 2021, 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/2021/colorado/weld-county