WHEELABRATOR MILLBURY FACILITY
OperatingBiomass power plant
- Capacity
- 48 MW
- Primary fuel
- Biomass
- County
- Worcester County
- Operator
- WHEELABRATOR ENVIRONMENTAL SYSTEMS
- Status
- Operating
- Commissioned
- 1987
- EIA plant ID
- 50878
- Coordinates
- 42.2210, -71.7674
WHEELABRATOR MILLBURY FACILITY, a 48 MW Biomass power plant in Worcester County, Massachusetts. One of 160 power plants tracked in Massachusetts on Bywatts.
Weather peril exposure
WHEELABRATOR MILLBURY FACILITY is a 48 MW biomass power plant in Worcester County, MA, operated by WHEELABRATOR ENVIRONMENTAL SYSTEMS, commissioned in 1987. Worcester County carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.7 of 5 at the 18th national percentile. Hurricane is the leading peril, rated Relatively High by FEMA at the 84th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a biomass plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Worcester County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively High | 84th | 4.4 of 5 | 0.13 |
| Ice storm | Very High | 78th | 4.1 of 5 | 3.0 |
| Earthquake | Relatively Low | 52nd | 3.1 of 5 | <0.01 |
| Wildfire | Very Low | 31st | 2.2 of 5 | <0.01 |
| Tornado | Relatively Moderate | 24th | 2.0 of 5 | 0.38 |
| Lightning | Relatively High | 23rd | 1.9 of 5 | 22.5 |
| Winter weather | Relatively Moderate | 23rd | 1.9 of 5 | 19.3 |
| Strong wind | Relatively High | 20th | 1.8 of 5 | 1.3 |
| Riverine flooding | Relatively High | 16th | 1.6 of 5 | 3.8 |
| Heat wave | Relatively Moderate | 7th | 1.3 of 5 | 4.4 |
| Hail | Relatively Moderate | 5th | 1.2 of 5 | 2.6 |
Perils not assessed in Worcester County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Coastal flooding | FEMA rating is "Not Applicable" for this county |
Model hail, wind and flood exposure for Worcester County in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.