County annual report · FIPS 25001
2015 Barnstable County, MA Power Outage Report
In 2015, customers in Barnstable County, MA went without power for an average of 4.6 hours, a total of 543K customer-hours (Massachusetts average 1.5 hours). That ranks 2nd worst of 14 Massachusetts counties and 612th 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 Barnstable 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 | August 4, 2015 07:45 | August 4, 2015 17:45 | 10h | 26,547 | 85K |
| 2 | June 24, 2015 01:45 | June 25, 2015 04:45 | 1d 3h | 17,324 | 109K |
| 3 | June 27, 2015 14:30 | June 29, 2015 08:15 | 1d 17h | 14,403 | 79K |
| 4 | June 21, 2015 06:30 | June 21, 2015 09:00 | 2h 30m | 7,960 | 3,218 |
| 5 | November 28, 2015 04:45 | November 28, 2015 17:45 | 13h | 5,926 | 10K |
| 6 | July 1, 2015 09:00 | July 2, 2015 06:30 | 21h 30m | 5,472 | 17K |
| 7 | August 15, 2015 08:15 | August 15, 2015 23:30 | 15h 15m | 5,064 | 6,618 |
| 8 | September 30, 2015 08:45 | October 1, 2015 07:45 | 23h | 4,986 | 17K |
| 9 | August 4, 2015 18:30 | August 5, 2015 03:15 | 8h 45m | 3,622 | 9,011 |
| 10 | December 18, 2015 02:15 | December 18, 2015 07:15 | 5h | 3,402 | 4,024 |
Outage episodes by size in 2015: 124 reached 100+ customers, 31 reached 1,000+ customers, 3 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 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 |
| NSTAR Electric Company | 2015 | 1.6 hrs | 0.83 | 75 min | 0.76 |
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 ÷ 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, 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/barnstable-county