County annual report · FIPS 25015
2020 Hampshire County, MA Power Outage Report
In 2020, customers in Hampshire County, MA went without power for an average of 7.6 hours, a total of 778K customer-hours (Massachusetts average 5.3 hours). That ranks 4th worst of 14 Massachusetts counties and 999th of 3,019 nationally.
Compared with MA, the US and 2019
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Hampshire County, 2020
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 7, 2020 21:15 | October 11, 2020 00:45 | 3d 3h | 16,358 | 302K |
| 2 | August 4, 2020 18:30 | August 9, 2020 10:00 | 4d 15h | 13,422 | 358K |
| 3 | March 11, 2020 14:15 | March 11, 2020 18:30 | 4h 15m | 5,686 | 2,087 |
| 4 | May 16, 2020 00:00 | May 16, 2020 18:30 | 18h 30m | 3,869 | 21K |
| 5 | October 13, 2020 09:00 | October 13, 2020 14:45 | 5h 45m | 3,777 | 3,972 |
| 6 | December 21, 2020 07:15 | December 21, 2020 08:15 | 1h | 3,071 | 1,161 |
| 7 | July 22, 2020 22:45 | July 23, 2020 15:45 | 17h | 2,937 | 3,935 |
| 8 | July 23, 2020 18:30 | July 23, 2020 23:15 | 4h 45m | 2,420 | 1,713 |
| 9 | December 5, 2020 18:15 | December 6, 2020 22:30 | 1d 4h | 2,114 | 3,021 |
| 10 | May 11, 2020 21:00 | May 11, 2020 22:30 | 1h 30m | 1,812 | 924 |
Outage episodes by size in 2020: 92 reached 100+ customers, 18 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 Hampshire County reported on EIA Form 861 for 2020, 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 | 2020 | 3.9 hrs | 1.14 | 65 min | 0.71 |
| Town of South Hadley - (MA) | 2018 | 15 min | 0.18 | 15 min | 0.18 |
| University of Massachusetts Amherst | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 94% of Massachusetts's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 101,974 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. Hampshire County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hampshire County, MA annual power outage report, 2020, 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/2020/massachusetts/hampshire-county