County annual report · FIPS 25001
2017 Barnstable County, MA Power Outage Report
In 2017, customers in Barnstable County, MA went without power for an average of 9.9 hours, a total of 1.2M customer-hours (Massachusetts average 4.7 hours). That ranks 3rd worst of 14 Massachusetts counties and 543rd of 2,786 nationally.
Compared with MA, the US and 2016
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Barnstable County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 9, 2017 16:15 | February 12, 2017 06:30 | 2d 14h | 50,097 | 480K |
| 2 | October 30, 2017 01:15 | November 3, 2017 03:15 | 4d 2h | 17,899 | 269K |
| 3 | December 25, 2017 14:45 | December 27, 2017 03:45 | 1d 13h | 17,635 | 101K |
| 4 | July 12, 2017 01:30 | July 12, 2017 06:30 | 5h | 17,336 | 35K |
| 5 | May 10, 2017 21:00 | May 10, 2017 22:30 | 1h 30m | 11,874 | 3,818 |
| 6 | July 20, 2017 12:45 | July 21, 2017 10:15 | 21h 30m | 8,018 | 22K |
| 7 | February 19, 2017 18:15 | February 19, 2017 20:45 | 2h 30m | 7,875 | 2,949 |
| 8 | June 30, 2017 14:45 | June 30, 2017 15:45 | 1h | 7,780 | 5,836 |
| 9 | March 14, 2017 16:00 | March 15, 2017 22:00 | 1d 6h | 6,210 | 36K |
| 10 | April 27, 2017 14:30 | April 27, 2017 20:00 | 5h 30m | 5,714 | 2,317 |
Outage episodes by size in 2017: 176 reached 100+ customers, 32 reached 1,000+ customers, 5 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 2017, 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 | 2017 | 3.4 hrs | 1.04 | 74 min | 0.07 |
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 2017; 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, 2017, 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/2017/massachusetts/barnstable-county