County annual report · FIPS 08049
2021 Grand County, CO Power Outage Report
In 2021, customers in Grand County, CO went without power for an average of 0.0 hours, a total of 454 customer-hours (Colorado average 2.8 hours). That ranks 51st worst of 52 Colorado counties and 2946th 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 Grand 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 | July 16, 2021 20:45 | July 16, 2021 21:45 | 1h | 45 | 45 |
| 2 | July 26, 2021 15:30 | July 26, 2021 16:15 | 45m | 45 | 34 |
| 3 | December 4, 2021 03:45 | December 4, 2021 04:45 | 1h | 44 | 44 |
| 4 | December 6, 2021 18:00 | December 6, 2021 18:30 | 30m | 44 | 22 |
| 5 | April 28, 2021 12:15 | April 28, 2021 21:45 | 9h 30m | 24 | 71 |
| 6 | December 24, 2021 19:15 | December 25, 2021 02:00 | 6h 45m | 21 | 22 |
| 7 | July 31, 2021 16:15 | July 31, 2021 18:15 | 2h | 9 | 18 |
| 8 | August 11, 2021 17:30 | August 11, 2021 18:00 | 30m | 9 | 4 |
| 9 | March 17, 2021 03:45 | March 17, 2021 08:15 | 4h 30m | 7 | 29 |
| 10 | March 21, 2021 15:30 | March 21, 2021 21:15 | 5h 45m | 7 | 25 |
Outage episodes by size in 2021: 0 reached 100+ customers, 0 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 Grand 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 |
| Yampa Valley Electric Assn Inc | 2021 | 1.7 hrs | 0.81 | 1.7 hrs | 0.81 |
| Mountain Parks Electric, Inc | 2021 | 2.2 hrs | 1.47 | 1.9 hrs | 1.21 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
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 ÷ 19,092 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. Grand County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Grand 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/grand-county