County annual report · FIPS 25013
2020 Hampden County, MA Power Outage Report
In 2020, customers in Hampden County, MA went without power for an average of 13.6 hours, a total of 2.7M customer-hours (Massachusetts average 5.3 hours). That ranks 3rd worst of 14 Massachusetts counties and 609th 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 Hampden 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 | August 4, 2020 19:30 | August 10, 2020 05:45 | 5d 10h | 56,663 | 2.1M |
| 2 | October 7, 2020 21:15 | October 10, 2020 22:45 | 3d 1h | 30,367 | 352K |
| 3 | March 31, 2020 16:15 | March 31, 2020 19:30 | 3h 15m | 9,423 | 30K |
| 4 | April 13, 2020 13:00 | April 14, 2020 23:45 | 1d 10h | 5,063 | 14K |
| 5 | December 5, 2020 16:00 | December 7, 2020 02:15 | 1d 10h | 4,084 | 36K |
| 6 | December 7, 2020 20:30 | December 8, 2020 10:30 | 14h | 2,969 | 1,230 |
| 7 | December 25, 2020 05:45 | December 25, 2020 20:00 | 14h 15m | 2,831 | 7,803 |
| 8 | May 15, 2020 22:30 | May 17, 2020 00:30 | 1d 2h | 2,795 | 4,881 |
| 9 | November 16, 2020 00:45 | November 16, 2020 21:00 | 20h 15m | 2,519 | 12K |
| 10 | August 23, 2020 20:00 | August 25, 2020 21:45 | 2d 1h | 2,508 | 14K |
Outage episodes by size in 2020: 157 reached 100+ customers, 32 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 Hampden 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 |
| City of Chicopee - (MA) | 2020 | 3.8 hrs | 0.38 | - | - |
| City of Holyoke - (MA) | 2020 | 2.4 hrs | 1.60 | 57 min | 1.07 |
| City of Westfield - (MA) | 2020 | 6.1 hrs | 2.45 | 1.7 hrs | 1.67 |
| Town of Chester | - | - | - | - | - |
| City of Russell - (MA) | - | - | - | - | - |
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 ÷ 196,656 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. Hampden County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hampden 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/hampden-county