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Construction & Operations Plan: oils, fluids, and lubricants 

Author:  | Environment, New Jersey, Technology

8. Waste Management and Chemicals
8.1. Chemicals

Table 8.1-1. Summary of maximum potential volumes oils, fuels, and lubricants per wind turbine generator.

System/Component Oil/Fuel Type Oil/Fuel Volume
Bearings and Yaw Pinions Grease* 187 gallons
Hydraulic Pumping Unit, Hydraulic Pitch Actuators, Hydraulic Pitch Accumulators Hydraulic Oil 40 gallons
Drive Train Gearbox (if applicable), Yaw Drives Gearbox Gear Oil 106 gallons
Transformer Dielectric Fluid 1,585 gallons
Emergency Generator Diesel Fuel 793 gallons
Switchgear Sulfur Hexafluoride (SF₆) 243 lbs
Transformer and Converter Cooling System Propylene Glycol 357 gallons
Converter Primary Cooling Ethylene Glycol 48 gallons

*Approximately 26 gal to 40 gal (100 L to 150 L) per large bearing.

Table 8.1-2. Summary of maximum volumes oils, fuels, and lubricants per offshore substation.

Equipment Oil/Fuel Type Oil/Fuel Volume
Transformers and Reactors Transformer oil 79,252 gallons
Generators Diesel Fuel 52,834 gallons
High-Voltage & Medium-Voltage Gas-Insulated Switchgear Sulfur Hexafluoride (SF₆) 4,950 lbs
Crane Hydraulic Oil 317 gallons

Table 8.1-3. Summary of maximum volumes oils, fuels, and lubricants per onshore substation.

Parameter Oil/Fuel Volume
Transformer oil substation 38,170 gallons
Fixed shunt reactor 1 oil 15,500 gallons
Fixed shunt reactor 2 oil 7,350 gallons
Variable shunt reactor oil 18,300 gallons
SF₆ substation 6,603 lbs
Batteries (lead acid gel) 4,034 lbs

Submitted to the Bureau of Ocean Energy Management
June 14, 2022

Download original document: “Ocean Wind Offshore Wind Farm: Construction & Operations Plan, Volume I

This material is the work of the author(s) indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.

The copyright of this material resides with the author(s). As part of its noncommercial educational effort to present the environmental, social, scientific, and economic issues of large-scale wind power development to a global audience seeking such information, National Wind Watch endeavors to observe “fair use” as provided for in section 107 of U.S. Copyright Law and similar “fair dealing” provisions of the copyright laws of other nations. Queries e-mail.

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