County annual report · FIPS 25027
2025 Worcester County, MA Power Outage Report
In 2025, customers in Worcester County, MA went without power for an average of 6.7 hours, a total of 1.4M customer-hours (Massachusetts average 2.8 hours). That ranks 2nd worst of 14 Massachusetts counties and 1191st of 3,000 nationally.
Compared with MA, the US and 2024
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Worcester County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 3, 2025 15:45 | May 5, 2025 06:00 | 1d 14h | 12,731 | 95K |
| 2 | December 19, 2025 18:15 | December 21, 2025 13:30 | 1d 19h | 12,077 | 63K |
| 3 | April 29, 2025 21:30 | May 1, 2025 02:15 | 1d 4h | 11,603 | 26K |
| 4 | June 17, 2025 12:30 | June 20, 2025 20:45 | 3d 8h | 10,691 | 30K |
| 5 | September 6, 2025 05:45 | September 8, 2025 07:00 | 2d 1h | 10,182 | 69K |
| 6 | October 30, 2025 19:00 | November 3, 2025 07:45 | 3d 12h | 10,102 | 98K |
| 7 | September 9, 2025 12:15 | September 11, 2025 10:30 | 1d 22h | 10,041 | 4,397 |
| 8 | February 16, 2025 21:45 | February 19, 2025 05:30 | 2d 7h | 9,685 | 115K |
| 9 | July 30, 2025 18:15 | August 2, 2025 02:00 | 2d 7h | 8,514 | 29K |
| 10 | July 15, 2025 13:00 | July 18, 2025 00:45 | 2d 11h | 7,109 | 18K |
Outage episodes by size in 2025: 234 reached 100+ customers, 80 reached 1,000+ customers, 7 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 Worcester County reported on EIA Form 861 for 2025, 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 | 2024 | 2.2 hrs | 1.00 | 1.5 hrs | 0.84 |
| Unitil Energy Systems | 2024 | 9.9 hrs | 1.73 | 1.6 hrs | 1.00 |
| Fitchburg Gas & Elec Light Co | 2024 | 65 min | 1.05 | 65 min | 1.05 |
| Town of Sterling - (MA) | 2013 | 19 min | 0.28 | 8 min | 0.13 |
| Town of Ashburnham - (MA) | - | - | - | - | - |
| Town of Boylston - (MA) | - | - | - | - | - |
| Town of Holden - (MA) | - | - | - | - | - |
| Town of Paxton - (MA) | - | - | - | - | - |
| Town of Princeton - (MA) | - | - | - | - | - |
| Town of Shrewsbury - (MA) | - | - | - | - | - |
| Town of Templeton - (MA) | - | - | - | - | - |
| Town of West Boylston - (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 n/a of Massachusetts's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 212,617 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. Worcester County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Worcester County, MA annual power outage report, 2025, 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/2025/massachusetts/worcester-county