County annual report · FIPS 08029
2023 Delta County, CO Power Outage Report
In 2023, customers in Delta County, CO went without power for an average of 6.5 hours, a total of 77K customer-hours (Colorado average 2.1 hours). That ranks 7th worst of 52 Colorado counties and 1213th of 2,977 nationally.
Compared with CO, the US and 2022
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Delta County, 2023
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 26, 2023 08:30 | May 11, 2023 01:15 | 14d 16h | 5,283 | 21K |
| 2 | May 14, 2023 13:00 | May 14, 2023 16:30 | 3h 30m | 3,083 | 8,478 |
| 3 | January 14, 2023 18:00 | January 14, 2023 20:45 | 2h 45m | 1,520 | 1,009 |
| 4 | October 20, 2023 22:45 | October 21, 2023 02:30 | 3h 45m | 1,519 | 3,039 |
| 5 | July 19, 2023 16:30 | July 20, 2023 01:00 | 8h 30m | 1,198 | 945 |
| 6 | November 17, 2023 01:00 | November 17, 2023 02:30 | 1h 30m | 1,197 | 729 |
| 7 | August 24, 2023 00:15 | August 24, 2023 07:30 | 7h 15m | 1,118 | 1,450 |
| 8 | February 24, 2023 13:45 | April 26, 2023 07:00 | 60d 17h | 1,089 | 15K |
| 9 | July 17, 2023 15:15 | July 18, 2023 13:00 | 21h 45m | 876 | 2,023 |
| 10 | July 20, 2023 23:15 | July 22, 2023 23:45 | 2d | 705 | 643 |
Outage episodes by size in 2023: 27 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 Delta County reported on EIA Form 861 for 2023, 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 | 2023 | 1.9 hrs | 1.02 | 1.7 hrs | 0.98 |
| Delta Montrose Electric Assn | 2013 | 89 min | 0.64 | 47 min | 0.48 |
| Grand Valley Power | 2023 | 68 min | - | 68 min | - |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| City of Delta - (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 n/a of Colorado's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 11,874 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. Delta County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Delta County, CO annual power outage report, 2023, 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/2023/colorado/delta-county