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8.6 MW Hydro operating in Fairfield, CT
8.6 MW
Nameplate Capacity
4
Generators
units
Conventional Hydroelectric
Technology
1989
Operating Since
Coordinates
41.3243, -73.1021
County
Fairfield, CT
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | McCallum Enterprises I LP | — | — |
| Owner(s) | McCallum Enterprises I LP | — | — |
| Status | Operating | — | — |
Derby Hydro is a hydroelectric power plant located in Fairfield County, Connecticut. The plant has a total capacity of 8.6 MW consisting of 4 generators and went into operation in 1989. The primary fuel source is water (WAT). McCallum Enterprises I LP is the plant's operator.
Derby Hydro operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. In the most recent year of data, the plant generated 23,927 MWh, achieving a capacity factor of 31.7%. Among hydroelectric plants in Connecticut, Derby Hydro ranks 6th out of 14 facilities. Nationally, it ranks 708th out of 1464 hydroelectric plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
ISO-NE
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
ISO New England Inc. (ISNE)
Grid Voltage
13.8 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
2.6K MWh
Latest Month
23.9K MWh
Annual Generation
31.7%
Capacity Factor
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2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $19.7M
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Point of Interconnection
Nearest Substation
Indian Well Substation · 115 kV
Substation Distance
0.228 km
Operator
United Illuminating Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
UN.INDIAN 13.8DERB
Pricing Hub
.Z.CONNECTICUT
Location Type
NETWORK NODE
Node Source
Curated node match
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
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