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Wethersfield

Valcour Wethersfield Windpark, LLC - Wyoming County - NYISO

Wethersfield is an existing 126 MW wind facility in Wyoming County, New York. AES's state application proposes replacing it with an approximately 136 MW repowered facility while reusing parts of the existing grid interconnection.

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Overview

Nameplate capacity: 126 MW
Canonical EIA plant baseline.
Registry anchor: Plant 56902
plant-56902

Structured profile

Technology: Onshore Wind Turbine
Operator: Valcour Operating Services, LLC

Wethersfield

NYISO · Asset profile

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Wethersfield — 126 MW wind farm, Wyoming County, NY · Ask the Grid

Units and generators

Operating generator records and technology attributes reported through EIA-860.

Generator	Capacity	Technology	Operation	Status
1	126 MW 126 MW summer	Onshore Wind Turbine Wind · WT	Apr 2009	Operating

Related parties and identifiers

Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.

Parties and identifiers

OrganizationRoleBasis

AES Clean Energy Development, LLCParent companyparent company and repowering developer

The AES CorporationParent company / acquirerportfolio acquirer and current project sponsor

The Carlyle GroupFormer ownerpredecessor portfolio owner

Noble Environmental PowerFormer owner / developeroriginal developer

plant:plant-56902Grid selectionCanonical asset page /assets/facilities/wethersfield.

Reporting portfolio

EIA reporting entity

Valcour Operating Services, LLC

Entity 63858

Operating portfolio

6 plants

1 states

Reported capacity

612 MW

Onshore Wind Turbine

Largest reported plants in this portfolio
Largest reported plants	Capacity	State
WethersfieldCurrent	126 MW	NY
Chateaugay	106.5 MW	NY
Clinton	100.5 MW	NY
Bliss (NY)	100.5 MW	NY
Altona	97.5 MW	NY
Ellenburg	81 MW	NY

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Apr 2009
Apr 2009
Generator enters operationEIA-860
EIA-860 lists generator 1 with this operating date.
Apr 6, 2009
Apr 6, 2009
Long-term project financing announcedge.com
GE Energy Financial Services announced more than $200 million of portfolio investment and approximately $440 million of long-term debt and letters of credit for Noble's three windparks, including Wethersfield, replacing construction financing.
2021
2021
Repowering preparation and development initiatedaes.com
AES began preparing to repower the operating Wethersfield facility. The project initially contemplated component and control-system replacement, but engineering and environmental assessments led to a more substantial turbine replacement program.
Oct 2023
Oct 2023
NYSERDA large-scale renewables awardaes.com
Wethersfield Wind received a NYSERDA large-scale renewables award as part of AES's New York project portfolio.
Nov 27, 2023
Nov 27, 2023
Repowering applicant entity formeddocuments.d...
Valcour Wethersfield NewCo, LLC was formed in Delaware as the AES-affiliated applicant for the repowering project.
Apr 3, 2025
Apr 3, 2025
Repowering project filed with New York regulatorsdocuments.d...
The proposed project was described as an approximately 136 MW facility replacing at least 49 of the existing 84 turbines with up to 35 larger turbines. The applicant expects operation to commence in 2028.

Sources

PublisherReferenceType

U.S. Energy Information AdministrationEIA-860 generator inventoryFederal registry

U.S. Energy Information AdministrationEIA-923 generation filingsFederal filing

documents.dps.ny.govdocuments.dps.ny.govauthoritative

Common questions about Wethersfield

Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.

How big is Wethersfield?

Wethersfield has a reported capacity of 126 MW. Source: EIA Form 860M.

What kind of plant is Wethersfield?

Wethersfield is a Onshore Wind Turbine facility in Wyoming County, NY, participating in the NYISO market.

Where is Wethersfield located?

Wethersfield is in Wyoming County, NY, inside the NYISO balancing area.

Who operates Wethersfield?

Wethersfield is operated by Valcour Operating Services, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Wethersfield generate?

Wethersfield reported 218.5 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.

How does Wethersfield compare to other plants?

By capacity, Wethersfield ranks #547 of 1,362 operating plants of the same technology nationally. It ranks #4 of 32 in NY.

Co-located assets

Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.

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Wethersfield

Overview

Structured profile

Ask about Wethersfield

Wethersfield

Overview

Structured profile

Ask about Wethersfield

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Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Nearby substations

Commercial, land, and environmental record

Transactions and agreements

Related parties and identifiers

Parties and identifiers

Reporting portfolio

Timeline and sources

Project timeline

Sources

Common questions about Wethersfield

How big is Wethersfield?

What kind of plant is Wethersfield?

Where is Wethersfield located?

Who operates Wethersfield?

How much electricity does Wethersfield generate?

How does Wethersfield compare to other plants?

Co-located assets