# Maple Ridge Wind Farm NYISO wind_power_plant · https://askthegrid.com/nyiso/assets/plant/maple-ridge-wind-farm Maple Ridge Wind Farm is a 321.2 MW onshore wind facility on the Tug Hill Plateau in Lewis County, New York, spanning the towns of Lowville, Martinsburg, Harrisburg, and Watson. It consists of 195 Vestas V82-1.65 MW wind turbines. The project is jointly owned by EDP Renewables North America and Avangrid Renewables (each holding approximately 50%) and operates as an independent power producer in the NYISO balancing area. The facility interconnects at 230 kV to the Niagara Mohawk transmission system. Originally developed by PPM Energy and Zilkha Renewable Energy and announced for construction in April 2005, the project was built in phases with Phase I (231 MW, 140 turbines) commencing operations in January 2006 and Phase II (91 MW, 55 turbines) commencing operations in September 2007. Construction created hundreds of jobs and the facility generates approximately 1.2 TWh annually, sufficient to power approximately 138,000 New York homes. The project spans approximately 21,000 acres, with the turbine footprint occupying less than 1% of total acreage, allowing concurrent agricultural and wildlife use on landowner property. ## Key facts - Technology: Onshore Wind Turbine - Power capacity: 321.2 MW ## Grid and market context - ISO/RTO: NYISO - Balancing authority: NYISO ## Source-backed facts - Canonical name: Maple Ridge Wind Farm (formerly Flat Rock Wind Power Project) — avangrid.com · confidence: review_required - Location.county: Lewis County, New York — edp.com · confidence: review_required - Location.towns: Lowville, Martinsburg, Harrisburg, Watson — edp.com · confidence: review_required - Location.geography: Tug Hill Plateau, approximately 75 miles northeast of Syracuse; elevation 1,600–1,800 feet; average elevation 1,600–1,800 feet with maximum elevation 2,000 feet above sea level — avangrid.com · confidence: review_required - Equipment.turbine count: 195 count — edp.com · confidence: review_required - Equipment.turbine model: Vestas V82-1.65 MW — edp.com · confidence: review_required - Equipment.phase 1 turbines: 140 count — edp.com · confidence: review_required - Equipment.phase 2 turbines: 55 count — edp.com · confidence: review_required - Site.acres: 21000 acres — avangrid.com · confidence: review_required - Interconnection.transmission line miles: 10.3 miles — documents.dps.ny.gov · confidence: review_required - Project value usd: 520000000 USD — edp.com · confidence: review_required - Local government payments usd: 47100000 USD — edp.com · confidence: review_required - Permanent jobs: 5 count — edp.com · confidence: review_required - Homes powered equivalent: 138000 homes — edp.com · confidence: review_required - Water savings annual gallons: 572000000 gallons — edp.com · confidence: review_required ## Timeline - 2005 — Phase I turbine construction 120 Vestas V82 wind turbines constructed in Phase I project area. Source: tethys.pnnl.gov (https://tethys.pnnl.gov/publications/annual-report-maple-ridge-wind-power-project-post-construction-bird-bat-fatality-study) - 2005-04-05 — Maple Ridge construction announced PPM Energy and Zilkha Renewable Energy announced the start of construction of the Maple Ridge Wind Farm (formerly called Flat Rock Wind Power Project). Announcement indicated commercial operation expected by end of 2005. Source: avangrid.com (https://www.avangrid.com/w/ppm-and-zilkha-announce-maple-ridge-wind-farm-landmark-project-will-quadruple-new-york-wind-energy-capacity) - 2006-05-01 — Phase IA and II construction begins Remaining 75 turbines in Phase IA and Phase II began construction. Source: tethys.pnnl.gov (https://tethys.pnnl.gov/publications/annual-report-maple-ridge-wind-power-project-post-construction-bird-bat-fatality-study) - 2006-09-26 — Maple Ridge Wind Farm dedication ceremony Maple Ridge Wind Farm dedicated in Lowville, New York. Project confirmed as New York's largest wind facility built that year. Phase I: 140 turbines (231 MW); Phase II turbines under construction to bring total to 195 turbines and approximately 320 MW. Source: avangrid.com (https://www.avangrid.com/w/maple-ridge-wind-farm-celebrates-clean-energy-for-the-empire-state) - 2006-12 — Phase IA and II turbine construction completed Construction of remaining 75 Phase IA and Phase II turbines completed (May–December 2006). Source: tethys.pnnl.gov (https://tethys.pnnl.gov/publications/annual-report-maple-ridge-wind-power-project-post-construction-bird-bat-fatality-study) - 2008-05-01 — PPM Energy rebranded to Iberdrola Renewables PPM Energy rebranded as Iberdrola Renewables, Inc. as part of Iberdrola corporate structure consolidation. Source: avangrid.com (https://www.avangrid.com/w/ppm-energy-is-now-iberdrola-renewables) - 2015 — Iberdrola USA and UIL Holdings merge to form Avangrid Iberdrola USA and UIL Holdings Corporation merged to form Avangrid, Inc., consolidating Iberdrola's U.S. renewable energy assets under Avangrid Renewables. Source: avangrid.com (https://www.avangrid.com/w/shareholders) ## Sources - [documents.dps.ny.gov](https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7B4E709648-589A-4BD5-8568-B208180D0EC2%7D) — documents.dps.ny.gov · tier authoritative - [edp.com](https://edp.com/en/north-america/na/projects/maple-ridge-wind-farm) — edp.com · tier public_source - [tethys.pnnl.gov](https://tethys.pnnl.gov/publications/annual-report-maple-ridge-wind-power-project-post-construction-bird-bat-fatality-study) — tethys.pnnl.gov · tier authoritative - [avangrid.com](https://www.avangrid.com/w/maple-ridge-wind-farm-celebrates-clean-energy-for-the-empire-state) — avangrid.com · tier public_source - [avangrid.com](https://www.avangrid.com/w/ppm-and-zilkha-announce-maple-ridge-wind-farm-landmark-project-will-quadruple-new-york-wind-energy-capacity) — avangrid.com · tier public_source - [avangrid.com](https://www.avangrid.com/w/ppm-energy-is-now-iberdrola-renewables) — avangrid.com · tier public_source - [avangrid.com](https://www.avangrid.com/w/shareholders) — avangrid.com · tier public_source - [edp.com](https://www.edp.com/sites/default/files/document/2025-04/NY%2520Maple%2520Ridge%2520Fact%2520Sheet_3.pdf) — edp.com · tier public_source - [northlandassoc.com](https://www.northlandassoc.com/project/wind-farm-projects/) — northlandassoc.com · tier public_source ## Data quality - Nearby or similarly named wind projects were excluded to preserve asset scope. The reported approximately $400 million figure from media sources is treated as project development cost, not project financing or sale consideration; no project-specific debt amount, tax-equity amount, or power-purchase agreement details were disclosed in the primary-source evidence. Capacity varies slightly across official sources: approximately 320 MW (2006 dedication), 321 MW (owner materials), 322 MW (EDP project page), and 321.2 MW (EIA calculation: 137+61+33+91 MW). The supplied plant identity uses 321.2 MW. The evidence documents phased construction and operation (Maple Ridge I and II) with two distinct operating entities (Flat Rock Windpower, LLC and Flat Rock Windpower II, LLC) but does not document a retirement, decommissioning, or repowering event through the current date. A specific project-level debt amount, lender commitment, tax-equity investment amount, or EPC contract value were not disclosed in the retrieved primary-source evidence. The USD 2,740 million Horizon acquisition represents the corporate-level sale price of Horizon Wind Energy LLC, not a Maple Ridge-specific transaction value. The ownership structure transitioned from PPM Energy (rebranded as Iberdrola Renewables in 2008, later organized under Avangrid) and Horizon Wind Energy (acquired by EDP in July 2007) to the current 50/50 joint venture between EDP Renewables North America and Avangrid Renewables. --- Canonical page: https://askthegrid.com/nyiso/assets/plant/maple-ridge-wind-farm Source: Ask the Grid — https://askthegrid.com/