massoutage

Operating region annual report

2021 Ponce Region, PR Power Outage Report

LUMA Energy's Ponce operating region, as EAGLE-I reports Puerto Rico. It covers Arroyo, Coamo, Guayama, Guayanilla, Guánica, Juana Díaz, Lajas, Maunabo, Patillas, Peñuelas, Ponce, Sabana Grande, Salinas, Santa Isabel, Villalba and Yauco. Source: LUMA's operational regions map (2/01/2024).

In 2021, customers in Ponce Region, PR went without power for an average of 24.0 hours, a total of 5.3M customer-hours (Puerto Rico average 27.3 hours). That ranks 4th worst of 6 Puerto Rico regions.

Summary data CSVJSON
Avg hrs / customer
24.0
220,813 customers
Customer-hours out
5.3M
Peak customers out
65,301
Outages ≥1,000 out
36
10 of 10,000+ · 80 total
Longest outage
46d 3h
began June 16, 2021
Rank in state
4th/6

Compared with PR, the US

Ponce Region, PR average hours without power per customer compared with state and national averages, 2021Ponce Region 24.0 hours, Puerto Rico average 27.3 hours, US average (50 states and DC) 8.4 hoursPonce RegionPonce Region24.0hPuerto Rico averagePuerto Rico average27.3hUS average (50 states and DC)US average (50 state…8.4h
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Average hours without power per customer in 2021.

Month by month

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Ponce Region, PR customer-hours without power by month, 2021Jan 31K, Feb 269K, Mar 267K, Apr 258K, May 492K, Jun 474K, Jul 295K, Aug 717K, Sep 1.7M, Oct 348K, Nov 159K, Dec 294K0500k1M1.5M2M31KJan269KFeb267KMar258KApr492KMay474KJun295KJul717KAug1.7MSep348KOct159KNov294KDec
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Customer-hours; September was the worst month.

Ponce Region year over year

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Ponce Region, PR: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: no data; 2019: no data; 2020: no data; 2021: 24.0h, coverage 100%; 2022: 300.3h, coverage 100%; 2023: 32.6h; 2024: 82.0h; 2025: 49.8h01002003004000%50%100%n/a2015n/a2016n/a2017n/a2018n/a2019n/a202024.0h2021300.3h202232.6h202382.0h202449.8h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Puerto Rico customers tracked each year.

Biggest outages in Ponce Region, 2021

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 24, 2021 04:15October 9, 2021 23:1515d 19h65,3011.5M
2August 1, 2021 21:45August 21, 2021 23:3020d 1h34,458414K
3August 22, 2021 01:15September 2, 2021 22:4511d 21h32,184445K
4June 16, 2021 17:00August 1, 2021 20:3046d 3h27,323719K
5November 28, 2021 23:15December 21, 2021 22:0022d 22h24,661289K
6September 5, 2021 11:45September 19, 2021 23:3014d 11h22,973113K
7April 5, 2021 10:45April 18, 2021 02:4512d 16h19,40095K
8May 6, 2021 12:00June 2, 2021 22:4527d 10h16,277513K
9March 16, 2021 18:45March 20, 2021 22:304d 3h11,43963K
10April 18, 2021 09:45April 19, 2021 03:3017h 45m10,91736K

Outage episodes by size in 2021: 45 reached 100+ customers, 36 reached 1,000+ customers, 10 reached 10,000+ customers.

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 100% of Puerto Rico's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 220,813 customers (the sum of ORNL's modeled municipio customer counts), 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. Ponce Region has data for 2021–2025.

Cite this report

MassOutage (massoutage.com), Ponce Region, PR annual power outage report, 2021, data as of Oct 14, 2026 13:35 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/). https://massoutage.com/reports/2021/puerto-rico/ponce-region

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON