Query
Deer Island Treatment Plant
Type
Entity Briefing
Entity
Deer Island Treatment Plant
State
RI
Generated
2026-10-17T19:07:23.489Z

Briefing on Deer Island Treatment Plant

Entity Briefing
Generated Oct 17, 2026·Dataset freshness not reported
73 MW
Capacity
Operating
Current status
1995
Operating since
8
Generators
5.2%
Capacity factor
33 GWh
Annual generation
Briefing/plantOperating

Deer Island Treatment Plant is a 73 MW Conventional Hydroelectric asset in ISO New England, currently Operating.

Deer Island Treatment Plant is reported in Massachusetts since 1995 under Massachusetts Water Resources Authority. Available operating and financial measures include 5.2% capacity factor and 33 GWh annual generation; $765/kW reported CapEx.

Location
Suffolk, Massachusetts
Technology
Conventional Hydroelectric, Onshore Wind Turbine, Other Waste Biomass, Petroleum Liquids, Solar Photovoltaic
Owner / parent
Massachusetts Water Resources Authority
Operator
Massachusetts Wtr Rauth-Deer I
Grid
ISO New England
Plant ID
10823

What stands out

1

Deer Island Treatment Plant is a 73 MW Conventional Hydroelectric asset in Massachusetts with status Operating.

2

Latest annual operating measures report 5.2% capacity factor and 33 GWh annual generation.

3

Available financial measures include $765/kW CapEx.

4

Latest linked story: “MWRA sues contractor for $4.3 million over wind turbine damage on Deer Island; company denies allegations” (The Boston Globe, 2024-04-18).

Market and operating context

ISO / market
ISO New England
Balancing authority
ISO New England Inc.
NERC region
NPCC
State rank
#3 of 13
National rank
#51 of 825

Why it matters

For this asset in ISO New England, operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.