County annual report · FIPS 25025
2022 Suffolk County, MA Power Outage Report
In 2022, customers in Suffolk County, MA went without power for an average of 0.6 hours, a total of 578K customer-hours (Massachusetts average 3.3 hours). That ranks 14th worst of 14 Massachusetts counties and 2814th of 2,976 nationally.
Compared with MA, the US and 2021
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Suffolk County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 24, 2022 13:30 | July 26, 2022 07:45 | 1d 18h | 22,288 | 75K |
| 2 | December 3, 2022 18:45 | December 4, 2022 04:15 | 9h 30m | 8,486 | 15K |
| 3 | February 27, 2022 19:15 | February 28, 2022 06:45 | 11h 30m | 7,295 | 18K |
| 4 | August 26, 2022 20:15 | August 27, 2022 20:30 | 1d | 6,643 | 21K |
| 5 | June 25, 2022 22:15 | June 26, 2022 04:45 | 6h 30m | 5,703 | 7,998 |
| 6 | August 7, 2022 13:45 | August 10, 2022 06:00 | 2d 16h | 5,628 | 25K |
| 7 | November 30, 2022 12:45 | December 1, 2022 13:15 | 1d | 3,379 | 12K |
| 8 | November 10, 2022 22:00 | November 11, 2022 00:45 | 2h 45m | 3,203 | 3,205 |
| 9 | February 2, 2022 18:15 | February 3, 2022 05:15 | 11h | 3,190 | 2,552 |
| 10 | May 14, 2022 00:45 | May 14, 2022 02:15 | 1h 30m | 3,186 | 2,200 |
Outage episodes by size in 2022: 272 reached 100+ customers, 48 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 Suffolk County reported on EIA Form 861 for 2022, 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 | 2022 | 2.4 hrs | 1.16 | 1.8 hrs | 1.05 |
| NSTAR Electric Company | 2022 | 3.3 hrs | 1.03 | 69 min | 0.75 |
| Massachusetts Bay Trans Authority | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of Massachusetts's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 947,211 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. Suffolk County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Suffolk County, MA annual power outage report, 2022, 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/2022/massachusetts/suffolk-county