massoutage

Operating region annual report

2021 Arecibo Region, PR Power Outage Report

LUMA Energy's Arecibo operating region, as EAGLE-I reports Puerto Rico. It covers Adjuntas, Arecibo, Barceloneta, Camuy, Ciales, Florida, Hatillo, Jayuya, Manatí, Morovis, Quebradillas, Utuado, Vega Alta and Vega Baja. Source: LUMA's operational regions map (2/01/2024).

In 2021, customers in Arecibo Region, PR went without power for an average of 23.3 hours, a total of 4.7M customer-hours (Puerto Rico average 27.3 hours). That ranks 6th worst of 6 Puerto Rico regions.

Summary data CSVJSON
Avg hrs / customer
23.3
203,086 customers
Customer-hours out
4.7M
Peak customers out
61,526
Outages ≥1,000 out
12
7 of 10,000+ · 44 total
Longest outage
69d 19h
began July 16, 2021
Rank in state
6th/6

Compared with PR, the US

Arecibo Region, PR average hours without power per customer compared with state and national averages, 2021Arecibo Region 23.3 hours, Puerto Rico average 27.3 hours, US average (50 states and DC) 8.4 hoursArecibo RegionArecibo Region23.3hPuerto 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

CSVJSON
Arecibo Region, PR customer-hours without power by month, 2021Jan 14K, Feb 367K, Mar 216K, Apr 159K, May 560K, Jun 209K, Jul 335K, Aug 552K, Sep 1.4M, Oct 312K, Nov 231K, Dec 403K0500k1M1.5M14KJan367KFeb216KMar159KApr560KMay209KJun335KJul552KAug1.4MSep312KOct231KNov403KDec
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Customer-hours; September was the worst month.

Arecibo Region year over year

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Arecibo 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: 23.3h, coverage 100%; 2022: 218.3h, coverage 100%; 2023: 37.7h; 2024: 67.5h; 2025: 62.3h01002003000%50%100%n/a2015n/a2016n/a2017n/a2018n/a2019n/a202023.3h2021218.3h202237.7h202367.5h202462.3h2025
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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 Arecibo 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 21, 2021 02:0026d 21h61,5261.3M
2July 16, 2021 01:15September 23, 2021 20:3069d 19h23,9091.1M
3February 10, 2021 12:00March 9, 2021 02:1526d 14h23,905395K
4May 3, 2021 13:00June 2, 2021 22:4530d 9h17,194618K
5April 4, 2021 22:00April 25, 2021 03:4520d 5h16,780148K
6October 21, 2021 05:16December 26, 2021 15:1566d 9h15,984639K
7March 9, 2021 07:30March 16, 2021 14:457d 7h14,48373K
8June 19, 2021 16:30July 16, 2021 00:1526d 7h9,138357K
9March 16, 2021 18:45April 4, 2021 05:4518d 11h6,43160K
10January 26, 2021 17:45February 10, 2021 05:4514d 12h5,40280K

Outage episodes by size in 2021: 13 reached 100+ customers, 12 reached 1,000+ customers, 7 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 ÷ 203,086 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. Arecibo Region has data for 2021–2025.

Cite this report

MassOutage (massoutage.com), Arecibo 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/arecibo-region

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON