County annual report · FIPS 12105
2021 Polk County, FL Power Outage Report
In 2021, customers in Polk County, FL went without power for an average of 2.3 hours, a total of 707K customer-hours (Florida average 1.9 hours). That ranks 35th worst of 67 Florida counties and 2134th of 2,974 nationally.
Compared with FL, the US and 2020
Coverage line is EAGLE-I's share of Florida customers tracked each year.
Biggest outages in Polk 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 | April 10, 2021 20:15 | April 16, 2021 09:45 | 5d 13h | 14,350 | 161K |
| 2 | July 5, 2021 09:15 | July 8, 2021 01:30 | 2d 16h | 8,169 | 25K |
| 3 | June 21, 2021 04:30 | June 23, 2021 05:45 | 2d 1h | 7,962 | 22K |
| 4 | January 19, 2021 14:00 | January 20, 2021 03:00 | 13h | 7,229 | 27K |
| 5 | December 6, 2021 10:00 | December 6, 2021 12:15 | 2h 15m | 6,064 | 5,068 |
| 6 | January 28, 2021 10:00 | January 28, 2021 22:45 | 12h 45m | 5,668 | 1,888 |
| 7 | August 25, 2021 11:15 | August 26, 2021 22:15 | 1d 11h | 5,442 | 7,615 |
| 8 | June 3, 2021 11:45 | June 9, 2021 09:30 | 5d 21h | 5,116 | 16K |
| 9 | June 9, 2021 12:00 | June 12, 2021 03:00 | 2d 15h | 4,891 | 14K |
| 10 | March 30, 2021 10:30 | March 30, 2021 21:30 | 11h | 4,442 | 18K |
Outage episodes by size in 2021: 223 reached 100+ customers, 65 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 Polk 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 |
|---|---|---|---|---|---|
| Duke Energy Florida, LLC | 2021 | 1.6 hrs | 1.04 | 90 min | 1.00 |
| Peace River Electric Coop, Inc | 2021 | 1.8 hrs | 1.05 | 1.8 hrs | 1.05 |
| Withlacoochee River Elec Coop | 2021 | 1.8 hrs | 1.49 | 1.8 hrs | 1.49 |
| Tampa Electric Co | 2021 | 1.7 hrs | 1.38 | 66 min | 0.99 |
| City of Lakeland - (FL) | 2013 | 78 min | 1.23 | 78 min | 1.23 |
| Duke Energy | - | - | - | - | - |
| City of Bartow - (FL) | - | - | - | - | - |
| City of Fort Meade - (FL) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 98% of Florida's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 313,954 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. Polk County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Polk County, FL 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/florida/polk-county