County annual report · FIPS 08077
2018 Mesa County, CO Power Outage Report
In 2018, customers in Mesa County, CO went without power for an average of 1.0 hours, a total of 80K customer-hours (Colorado average 1.6 hours). That ranks 32nd worst of 49 Colorado counties and 2299th 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 Mesa 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 | April 19, 2018 21:30 | April 20, 2018 04:15 | 6h 45m | 7,361 | 14K |
| 2 | June 3, 2018 23:15 | June 4, 2018 00:30 | 1h 15m | 5,303 | 1,361 |
| 3 | October 2, 2018 21:45 | October 3, 2018 02:00 | 4h 15m | 5,243 | 4,379 |
| 4 | May 22, 2018 18:15 | May 22, 2018 22:15 | 4h | 2,459 | 619 |
| 5 | October 4, 2018 15:45 | October 5, 2018 01:30 | 9h 45m | 2,390 | 1,288 |
| 6 | August 23, 2018 18:00 | August 23, 2018 19:15 | 1h 15m | 2,293 | 2,865 |
| 7 | August 23, 2018 20:30 | August 24, 2018 00:00 | 3h 30m | 2,293 | 2,869 |
| 8 | May 17, 2018 17:15 | May 17, 2018 20:30 | 3h 15m | 2,275 | 1,722 |
| 9 | August 10, 2018 20:30 | August 11, 2018 02:30 | 6h | 1,983 | 963 |
| 10 | July 17, 2018 22:15 | July 18, 2018 06:00 | 7h 45m | 1,769 | 3,699 |
Outage episodes by size in 2018: 51 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 Mesa 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 |
| Holy Cross Electric Assn, Inc | 2018 | 1.6 hrs | 1.47 | 75 min | 1.10 |
| Grand Valley Power | 2018 | 79 min | - | 79 min | - |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| San Miguel Power Assn, 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 ÷ 78,542 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. Mesa County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mesa 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/mesa-county