County annual report · FIPS 08049
2018 Grand County, CO Power Outage Report
In 2018, customers in Grand County, CO went without power for an average of 0.2 hours, a total of 3,852 customer-hours (Colorado average 1.6 hours). That ranks 44th worst of 49 Colorado counties and 2625th 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 Grand 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 14, 2018 14:00 | March 14, 2018 20:00 | 6h | 142 | 852 |
| 2 | January 16, 2018 17:30 | January 17, 2018 04:15 | 10h 45m | 54 | 527 |
| 3 | February 13, 2018 16:15 | February 13, 2018 21:45 | 5h 30m | 54 | 297 |
| 4 | March 21, 2018 14:00 | March 21, 2018 20:15 | 6h 15m | 53 | 237 |
| 5 | April 5, 2018 15:15 | April 5, 2018 20:00 | 4h 45m | 48 | 228 |
| 6 | May 3, 2018 14:00 | May 3, 2018 23:15 | 9h 15m | 44 | 206 |
| 7 | March 13, 2018 15:00 | March 13, 2018 20:45 | 5h 45m | 38 | 219 |
| 8 | December 19, 2018 15:00 | December 20, 2018 00:00 | 9h | 38 | 330 |
| 9 | May 2, 2018 15:00 | May 2, 2018 16:45 | 1h 45m | 36 | 43 |
| 10 | December 12, 2018 15:00 | December 12, 2018 20:15 | 5h 15m | 33 | 149 |
Outage episodes by size in 2018: 1 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 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 |
| Yampa Valley Electric Assn Inc | 2018 | 4.7 hrs | 2.43 | 4.1 hrs | 2.14 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Mountain Parks Electric, Inc | - | - | - | - | - |
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 ÷ 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, 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/grand-county