County annual report · FIPS 25009
2015 Essex County, MA Power Outage Report
In 2015, customers in Essex County, MA went without power for an average of 1.9 hours, a total of 421K customer-hours (Massachusetts average 1.5 hours). That ranks 5th worst of 14 Massachusetts counties and 1253rd of 2,484 nationally.
Compared with MA, the US
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Essex County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 20, 2015 22:15 | September 23, 2015 03:30 | 2d 5h | 10,559 | 18K |
| 2 | May 31, 2015 15:30 | June 1, 2015 21:00 | 1d 5h | 7,517 | 13K |
| 3 | September 30, 2015 08:15 | October 1, 2015 08:45 | 1d | 6,040 | 6,558 |
| 4 | June 2, 2015 02:30 | June 2, 2015 17:45 | 15h 15m | 5,380 | 5,796 |
| 5 | December 21, 2015 00:30 | December 21, 2015 09:30 | 9h | 5,296 | 11K |
| 6 | July 19, 2015 12:45 | July 19, 2015 18:15 | 5h 30m | 5,275 | 4,258 |
| 7 | February 14, 2015 13:30 | February 17, 2015 00:15 | 2d 10h | 4,453 | 9,660 |
| 8 | June 30, 2015 12:00 | June 30, 2015 16:45 | 4h 45m | 4,341 | 1,104 |
| 9 | December 15, 2015 16:00 | December 16, 2015 01:00 | 9h | 3,999 | 4,340 |
| 10 | March 17, 2015 20:45 | March 18, 2015 18:00 | 21h 15m | 3,843 | 17K |
Outage episodes by size in 2015: 203 reached 100+ customers, 56 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 Essex County reported on EIA Form 861 for 2015, 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 |
|---|---|---|---|---|---|
| Massachusetts Electric Co | 2014 | 2.4 hrs | 1.12 | 1.6 hrs | 0.96 |
| Town of Reading - (MA) | 2015 | 64 min | 0.31 | 20 min | - |
| City of Marblehead - (MA) | - | - | - | - | - |
| City of Peabody - (MA) | - | - | - | - | - |
| Town of Danvers | - | - | - | - | - |
| Town of Georgetown - (MA) | - | - | - | - | - |
| Town of Groveland - (MA) | - | - | - | - | - |
| Town of Ipswich - (MA) | - | - | - | - | - |
| Town of Merrimac - (MA) | - | - | - | - | - |
| Town of Middleton - (MA) | - | - | - | - | - |
| Town of Rowley - (MA) | - | - | - | - | - |
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 Massachusetts's customers in 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 216,314 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. Essex County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Essex County, MA annual power outage report, 2015, 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/2015/massachusetts/essex-county