County annual report · FIPS 25003
2020 Berkshire County, MA Power Outage Report
In 2020, customers in Berkshire County, MA went without power for an average of 7.2 hours, a total of 717K customer-hours (Massachusetts average 5.3 hours). That ranks 7th worst of 14 Massachusetts counties and 1049th 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 Berkshire 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 18:30 | August 9, 2020 00:00 | 4d 5h | 19,280 | 401K |
| 2 | October 7, 2020 19:30 | October 11, 2020 00:15 | 3d 4h | 16,708 | 202K |
| 3 | December 8, 2020 18:30 | December 8, 2020 19:30 | 1h | 8,611 | 2,402 |
| 4 | December 17, 2020 12:45 | December 17, 2020 16:15 | 3h 30m | 6,693 | 4,286 |
| 5 | November 30, 2020 21:15 | December 1, 2020 03:30 | 6h 15m | 6,641 | 3,358 |
| 6 | October 20, 2020 12:30 | October 20, 2020 22:30 | 10h | 3,680 | 1,194 |
| 7 | August 16, 2020 09:15 | August 16, 2020 17:45 | 8h 30m | 3,492 | 4,984 |
| 8 | September 29, 2020 20:45 | September 30, 2020 23:15 | 1d 2h | 3,060 | 6,397 |
| 9 | August 23, 2020 21:30 | August 24, 2020 07:30 | 10h | 1,673 | 3,479 |
| 10 | August 10, 2020 21:45 | August 11, 2020 23:45 | 1d 2h | 1,516 | 1,493 |
Outage episodes by size in 2020: 107 reached 100+ customers, 17 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 Berkshire 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 |
| AVANGRID | - | - | - | - | - |
| Town of Chester | - | - | - | - | - |
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 ÷ 99,023 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. Berkshire County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Berkshire 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/berkshire-county