County annual report · FIPS 25027
2023 Worcester County, MA Power Outage Report
In 2023, customers in Worcester County, MA went without power for an average of 9.2 hours, a total of 2.0M customer-hours (Massachusetts average 5.1 hours). That ranks 3rd worst of 14 Massachusetts counties and 902nd of 2,977 nationally.
Compared with MA, the US and 2022
Coverage line is EAGLE-I's share of Massachusetts customers tracked each year.
Biggest outages in Worcester County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 14, 2023 06:45 | March 17, 2023 09:15 | 3d 2h | 30,832 | 556K |
| 2 | December 17, 2023 14:15 | December 22, 2023 03:45 | 4d 13h | 25,526 | 392K |
| 3 | January 23, 2023 00:45 | January 28, 2023 00:00 | 4d 23h | 15,865 | 434K |
| 4 | September 7, 2023 14:00 | September 12, 2023 03:15 | 4d 13h | 11,583 | 80K |
| 5 | June 14, 2023 16:15 | June 17, 2023 01:15 | 2d 9h | 4,947 | 9,377 |
| 6 | June 12, 2023 10:30 | June 12, 2023 18:15 | 7h 45m | 4,754 | 5,184 |
| 7 | July 29, 2023 16:30 | July 30, 2023 04:00 | 11h 30m | 4,748 | 7,201 |
| 8 | March 12, 2023 23:15 | March 13, 2023 09:15 | 10h | 4,687 | 4,194 |
| 9 | June 6, 2023 09:45 | June 7, 2023 00:00 | 14h 15m | 4,088 | 4,447 |
| 10 | February 3, 2023 03:00 | February 5, 2023 09:30 | 2d 6h | 3,786 | 49K |
Outage episodes by size in 2023: 244 reached 100+ customers, 58 reached 1,000+ customers, 4 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 2023, 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 | 2023 | 5.8 hrs | 1.16 | 1.6 hrs | 0.84 |
| Unitil Energy Systems | 2023 | 4.3 hrs | 1.55 | 1.5 hrs | 0.89 |
| Fitchburg Gas & Elec Light Co | 2023 | 16.9 hrs | 2.45 | 1.5 hrs | 1.21 |
| 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 2023; 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, 2023, 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/2023/massachusetts/worcester-county