# Arkwright Summit Wind Farm LLC

NYISO wind_power_plant · https://askthegrid.com/nyiso/assets/plant/arkwright-summit-wind-farm-llc

Arkwright Summit Wind Farm is a 78.4 MW onshore wind project in Chautauqua County, New York, comprising 36 Vestas V110 wind turbines (32 units at 2.2 MW and 4 units at 2.0 MW) located in the Town of Arkwright and interconnected to the grid in the Town of Pomfret. The project was originally developed as New Grange Wind Farm before being renamed.

## Key facts

- Technology: Onshore Wind Turbine
- Power capacity: 78.4 MW

## Grid and market context

- ISO/RTO: NYISO
- Balancing authority: NYISO

## Source-backed facts

- Asset.location.county: Chautauqua — documents.dps.ny.gov · confidence: review_required
- Asset.location.towns: Town of Arkwright (turbines); Town of Pomfret (grid interconnection) — edp.com · confidence: review_required
- Asset.turbine model: Vestas V110 — documents.dps.ny.gov · confidence: review_required
- Asset.eia plant id: 61673 — mbrweb.ferc.gov · confidence: review_required
- Asset.lgia number: 2356 — nyisoviewer.etariff.biz · confidence: review_required
- Asset.economic impact total usd: 31000000 USD — edp.com · confidence: review_required
- Asset.jobs construction: 173 — edp.com · confidence: review_required
- Asset.jobs permanent: 4 — edp.com · confidence: review_required

## Timeline

- 2008-10 — Initial development proposal
  Project was proposed in the Towns of Arkwright and Pomfret as a 44-turbine, up-to-79.2 MW wind farm.
  Source: edp.com (https://www.edp.com/sites/default/files/document/2025-04/Arkwright-Summit-App-I-Economic-Impact.pdf)
- 2017-07 — Construction phase
  Contemporaneous 2017 reports described the project as under construction and expected to become operational in 2018. The official project study estimated a construction phase of approximately nine months.
  Source: chqdaily.com (https://chqdaily.com/2017/07/three-wind-farms-may-built-towns-near-chautauqua/)
- 2017-08-10 — NYISO interconnection agreement effective
  The NYISO/Niagara Mohawk interconnection service agreement (LGIA 2356) became effective. Arkwright Summit posted $15.3016 million in security for attachment facilities and allocated system-upgrade costs.
  Source: nyisoviewer.etariff.biz (https://nyisoviewer.etariff.biz/viewerdoclibrary/Filing/Filing1320/1320FilingSections/FID1320%20Arkwright%20Summit%20Wind%20LGIA%20SA%202356%20clean_20754.pdf)
- 2024 — Operating economic impact through 2024
  Owner's fact sheet reports cumulative project impact through 2024: more than $31 million total economic impact, $13.4 million paid to landowners, $4.2 million to local governments, and $13.7 million in local spending.
  Source: edp.com (https://www.edp.com/sites/default/files/document/2025-06/NY%20Arkwright%20Summit%20Fact%20Sheet_1.pdf)

## Sources

- [chqdaily.com](https://chqdaily.com/2017/07/three-wind-farms-may-built-towns-near-chautauqua/) — chqdaily.com · tier public_source
- [documents.dps.ny.gov](https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7B7C5CD5FA-7AC7-4A21-BEB1-CF190F6A8127%7D) — documents.dps.ny.gov · tier authoritative
- [edp.com](https://edp.com/en/north-america/na/projects/arkwright-summit-wind-farm) — edp.com · tier public_source
- [edp.com](https://edp.com/sites/default/files/document/2026-07/NY%20New%20York%20State%20Fact%20Sheet.pdf) — edp.com · tier public_source
- [mbrweb.ferc.gov](https://mbrweb.ferc.gov/SearchlkpEIA/Index?page=469) — mbrweb.ferc.gov · tier authoritative
- [nyisoviewer.etariff.biz](https://nyisoviewer.etariff.biz/ViewerDocLibrary/Filing/Filing1409/1409FilingSections/LGIA2356%20NYISO%20NMPC%20Arkwright%20FID1409_22277.pdf) — nyisoviewer.etariff.biz · tier public_source
- [nyisoviewer.etariff.biz](https://nyisoviewer.etariff.biz/viewerdoclibrary/Filing/Filing1320/1320FilingSections/FID1320%20Arkwright%20Summit%20Wind%20LGIA%20SA%202356%20clean_20754.pdf) — nyisoviewer.etariff.biz · tier public_source
- [edp.com](https://www.edp.com/sites/default/files/document/2025-04/Arkwright-Summit-App-I-Economic-Impact.pdf) — edp.com · tier public_source
- [edp.com](https://www.edp.com/sites/default/files/document/2025-06/NY%20Arkwright%20Summit%20Fact%20Sheet_1.pdf) — edp.com · tier public_source
- [observertoday.com](https://www.observertoday.com/news/top-stories/2016/11/arkwright-energy-project-blows-toward-construction/) — observertoday.com · tier public_source

## Data quality

- The project is reported at several nearby capacity values depending on record and vintage: 79.2 MW in the 2008 proposal, 79.8 MW in NYISO queue records, 78.6 MW in a New York regulatory filing, and 78.4 MW in operating/LGIA records. The 78.4 MW value is retained as the exact operating specification from the filed NYISO LGIA and is aligned with the EIA plant anchor. The project was formerly named New Grange Wind Farm; this is a predecessor project name, not evidence of a predecessor owner. The renaming occurred in 2015. No project-specific acquisition price, sale transaction, or separate repowering/retirement event for this exact plant is identified. The 2018 tax-equity transaction covered Arkwright and Turtle Creek together. The NYISO interconnection agreement records $15.3016 million of posted security for interconnection attachment facilities and allocated system-upgrade costs. This is interconnection security, not total project financing or transaction value. EDP Renewables acquired Horizon Wind Energy, LLC from Goldman Sachs in 2007. Horizon was the prior corporate sponsor of the New Grange project. This was a corporate-parent transaction; no separate asset-level acquisition is documented for Arkwright Summit itself. Owner materials and official EDPR fact sheets identify the facility as online since 2018 with cumulative economic impacts through 2024. Operating status is confirmed by the 2024 NYISO Gold Book (current through March 15, 2024). The 2024 NYISO non-material-change record refers to historical turbine and capacity variations but does not document a present-day retirement, repowering, or material facility modification.

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