County annual report · FIPS 25001
2019 Barnstable County, MA Power Outage Report
In 2019, customers in Barnstable County, MA went without power for an average of 10.7 hours, a total of 1.3M customer-hours (Massachusetts average 3.0 hours). That ranks 1st worst of 14 Massachusetts counties and 504th of 2,945 nationally.
Compared with MA, the US and 2018
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Barnstable County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 17, 2019 01:45 | October 22, 2019 05:30 | 5d 3h | 41,360 | 1.1M |
| 2 | April 3, 2019 11:45 | April 3, 2019 22:45 | 11h | 10,501 | 11K |
| 3 | September 19, 2019 17:30 | September 19, 2019 18:00 | 30m | 9,287 | 2,322 |
| 4 | February 25, 2019 11:45 | February 26, 2019 07:45 | 20h | 3,665 | 8,304 |
| 5 | October 27, 2019 20:00 | October 28, 2019 04:00 | 8h | 3,557 | 9,347 |
| 6 | March 22, 2019 08:45 | March 22, 2019 13:00 | 4h 15m | 3,232 | 2,868 |
| 7 | January 24, 2019 14:00 | January 25, 2019 22:00 | 1d 8h | 2,994 | 10K |
| 8 | September 19, 2019 00:00 | September 19, 2019 04:00 | 4h | 2,615 | 1,404 |
| 9 | December 7, 2019 02:15 | December 7, 2019 06:30 | 4h 15m | 2,432 | 3,395 |
| 10 | November 25, 2019 14:00 | November 25, 2019 22:30 | 8h 30m | 2,274 | 4,437 |
Outage episodes by size in 2019: 90 reached 100+ customers, 22 reached 1,000+ customers, 2 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 Barnstable County reported on EIA Form 861 for 2019, 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 |
| NSTAR Electric Company | 2018 | 16.2 hrs | 1.68 | 85 min | 0.83 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 89% of Massachusetts's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 118,437 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. Barnstable County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Barnstable County, MA annual power outage report, 2019, 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/2019/massachusetts/barnstable-county