Marble River Wind Farm
Marble River, LLC - Clinton County - NYISO
A 215.25 MW onshore wind farm in Clinton County, New York, near Churubusco, Clinton, and Ellenburg. The facility is located on approximately 17,000 acres of leased land and generated approximately 145.8 GWh during December 2025 through March 2026.
Overview
Key fields
- Nameplate capacity
- 215.3 MW
Canonical EIA plant baseline.
- Registry anchor
- Plant 56857
plant-56857
Structured profile
- Technology
- Onshore Wind Turbine
- Operator
- Marble River, LLC
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| GEN1 | 215.3 MW 215.3 MW summer | Onshore Wind Turbine Wind · WT | Nov 2012 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 215.3 MW
- National rank
- #201
- NY rank
- #2
Monthly generation
Download CSVMonthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Grid and market context
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Nearby substations
HIFLD infrastructure inventoryCommercial, land, and environmental record
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Transactions and agreements
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.
Relationship graph
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Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Owner / operator | Marble River, LLC | Owner and operator |
| Developer | AES-Acciona Energy NY, LLC | Original development joint-venture participant |
| Offtaker | Renewable energy attribute purchaser | |
| Equipment supplier | Turbine manufacturer | |
| Seller | The Goldman Sachs Group, Inc. | Seller of Horizon Wind Energy to EDP Renewables |
| Grid selection | plant:plant-56857 | Canonical asset page /nyiso/assets/plant/marble-river-wind-farm. |
Reporting portfolio
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Timeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- Construction Progress Reportdocuments.d...
August 2012 construction status update reported 93% project completion, with foundations and HV work complete. Turbine delivery at 85%, installation at 75%, mechanical completion at 56%, and commissioning at 31%.
- Generator enters operationEIA-860
EIA-860 lists generator GEN1 with this operating date.
- Commercial Operation Datedocuments.d...
Marble River Wind Farm began commercial operation in November 2012. Project capacity reported as 215.25 MW and subsequently 215.2 MW in NYISO records.
Sources
Common questions about Marble River Wind Farm
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
How big is Marble River Wind Farm?
Marble River Wind Farm has a reported capacity of 215.3 MW. Source: EIA Form 860M.
What kind of plant is Marble River Wind Farm?
Marble River Wind Farm is a Onshore Wind Turbine facility in Clinton County, NY, participating in the NYISO market.
Where is Marble River Wind Farm located?
Marble River Wind Farm is in Clinton County, NY, inside the NYISO balancing area.
Who operates Marble River Wind Farm?
Marble River Wind Farm is operated by Marble River, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
How much electricity does Marble River Wind Farm generate?
Marble River Wind Farm reported 457.8 GWh over the twelve months to 2026-04. Figures are net generation as filed to EIA-923.
How does Marble River Wind Farm compare to other plants?
By capacity, Marble River Wind Farm ranks #201 of 1,362 operating plants of the same technology nationally. It ranks #2 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.
Related assets
Similar plants ranked by technology, capacity, and distance.