Resource Documents: U.S. (157 items)
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Chemical Products Used and Stored
Author: US Wind
The below table provides a preliminary list of chemical products to be used on the Project (if stored volume exceeds United States Environmental Protection Agency (EPA) Reportable Quantities); the volume stored on location; their treatment, discharge, or disposal method and location; and any other necessary permit(s) pertaining to these chemical products. It is not anticipated that any additional permits will be required. The list below is preliminary and will be updated in the Facility Design Report and Facility Installation Report.*
| Chemical Product Used | Use | Volume Stored on Location or Contained in Equipment | Treatment, discharge, or disposal method and location | Manner of delivery to site | Quantity per Transfer and Number of Transfers |
| Synthetic Ester | OSS Transformer Cooling Oil | 159,482 liters (42,131 gallons) per OSS | Removed from transformer to service vessel during routine maintenance Material brought to port for disposal |
Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
Every 2 years, based on conditions, if needed |
| Motor Oil | OSS Emergency Generator | 44 liters (12 gallons) per OTM | Removed from engineand brought to port for disposal | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
Annually, based on conditions, if needed |
| Hydraulic oil | OSS Heavy Lift Crane | 1,267 liters (335 gallons) per OSS | Removed from hydraulic system and brought to port for disposal | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
Annually, based on conditions, if needed |
| Diesel Oil | OSS Emergency Generator | 160,856 liters (42,494 gallons) per OSS | Removed from fuel storage tank brought to port for disposal | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
As required |
| Water/glycol | OSS Emergency Generator | 114 liters (30 gallons) per OSS | Removed from OSS components brought to port for disposal | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
Every 2 years |
| Grease | WTG bearings and auxiliary equipment | 355 liters (94 gallons) per WTG | Removed from WTG components brought to port for disposal | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
Every 2 years |
| Synthetic Ester | WTG Transformer Cooling Fluid | 4,500 liters (1,189 gallons) per WTG | Removed from transformer to service vessel during routine maintenance Material brought to port for disposal |
Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
Every 2 years, based on conditions, if needed |
| Compressor oil | Rotor locking and rotor brake | 83 liters (22 gallons) per WTG | Removed from WTG components brought to port for disposal | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
Every 4 years, based on conditions, if needed |
| Lubricating oil | WTG Pitch and yaw gear and damper mass system lubricants | 323 liters (85 gallons) per WTG | Removed from WTG components brought to port for disposal | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
Every 4 years |
| Water Propylene Glycol mix | WTG Coolant | 1,300 liters (343 gallons) per WTG |
Removed from cooling system and brought to port for disposal | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
Every 2 years |
| Fire suppressant (foam) | WTG | 75 liters (20 gallons) per WTG | Collected and brought to port for appropriate disposal as necessary | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
As needed |
| Fire suppressant IG541 inert gas bottles | WTG | 9 × 5.91 kg | Removed from WTG components brought to port for disposal | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
As needed |
| Ion exchange resin | WTG | 27.5 liters (7.3 gallons) per WTG | Removed from WTG components brought to port for disposal | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
As needed |
| SF₆ gas | WTG and OSS Switchgear | n/a | Removed from WTG and OSS components and brought to port for disposal | Transferred via installation or service vessel at time of installation | As needed |
| Portable fire extinguishers | Foam and CO₂ extinguishers | 9 L Foam and 6 kg CO₂ per extinguisher | Removed from WTG and OSS components and brought to port for disposal | Transferred via installation or service vessel at time of installation Transferred via service vessels during O&M phase |
As needed |
*OSS = offshore substation; WTG = wind turbine generator
Submitted to the Bureau of Ocean Energy Management
26 February 2022
US Wind Construction and Operations Plan. Volume 1, Appendix H: Chemical Products Used and Stored
Oils, Fuels, and Greases
Author: Kitty Hawk Wind
Table 3.2-12 Preliminary Summary of Oils, Fuels, and Greases for Construction and Operations*
| Chemical Type | Description | Use/Location | Approx. Volume | Frequency of Transfer | Treatment or Disposal |
| Transformer oil (WTG and ESP) | Bio-degradable oil or highly refined mineral oil | Main 220/66 or 220/132 kV Transformers, 220 kV shunt reactors, 66 or 132 kV aux. transformers & 66 or 132 kV grounding reactor | 6,000 L per WTG 466,400 L on ESP |
Not anticipated; only changed if needed | To be brought to designated O&M port and disposed according to regulations and guidelines |
| Lubrication oil (ESP) | Lubricant oil | Crane Emergency generator |
Crane: To be defined during detailed design Emergency generator: 55 L |
Expected every 5-8 years | To be brought to designated O&M port and disposed according to regulations and guidelines |
| General oil (WTG and ESP) | Different kinds of oil | WTGs: Hydraulics, gear box, yaw gears, transformers, etc. Might also be used for passive damper located in tower ESP: Hydraulic oil for crane |
8,000 L per WTG 3,000 L to be replaced as part of scheduled maintenance 1,320 L on ESP |
Expected every 5-8 years | To be brought to designated O&M port and disposed according to regulations and guidelines |
| Grease (WTG) | Refill of grease for main bearing, yaw bearing, blade bearing | Bearings including yaw bearing and blade bearing | 40 L per WTG | Expected every year | To be brought to designated O&M port and disposed according to regulations and guidelines |
| Diesel fuel (WTG and ESP) | Fuel for the emergency diesel generator (if any) | Diesel storage tank | 3,000 L per WTG 21,560 L on ESP |
Only as required | To be brought to designated O&M port and disposed according to regulations and guidelines |
| Fire extinguishing agents (WTG and ESP) | Inert gas extinguishing system (e.g., NOVEC, nitrogen, or similar) | Various rooms | To be defined during detailed design | Not anticipated; only changed if needed | To be brought to designated O&M port and disposed according to regulations and guidelines |
| Fire extinguishing agents (WTG and ESP) | Manual extinguishers: powder, carbon dioxide (CO₂), foam | Various locations | WTG: To be defined during detailed design 11,000 L foam on ESP |
Depends on fabrication | To be brought to designated O&M port and disposed according to regulations and guidelines |
| Fire extinguishing agents (WTG and ESP) | Other types (if any) | Various locations | To be defined during detailed design | Not anticipated; only changed if needed | To be brought to designated O&M port and disposed according to regulations and guidelines |
| Dielectric gas (electrical insulating gas) (WTG and ESP) | Sulfur hexafluoride (SF₆) | WTG: GIS switch gears ESP: GIS switch gears Onshore substation |
Approx. 18 kilograms per WTG 2,320 kilograms on ESP |
Not replaced | To be brought to designated O&M port and disposed according to regulations and guidelines |
| Paint & coating (WTG and ESP) | Corrosion protection of steel structure paints & varnishes | Steel structure, various locations | To be defined during detailed design | Only for repairs | To be brought to designated O&M port and disposed according to regulations and guidelines |
| Coolants or refrigerants (WTG and ESP) | Water, glycol, other refrigerants | Heating, Ventilation, and Air Conditioning unit, Air Handling Unit | 1,600 L per WTG Approx. 700 L to be replaced as part of scheduled maintenance 176 L on ESPs |
Expected every 5-8 years | To be brought to designated O&M port and disposed according to regulations and guidelines |
| Grout (WTG and ESP) | Grout | Grout for connection between monopile and transition piece | Up to 40,000 L per WTG and ESP position | Not anticipated; only changed if needed | To be brought back to port and disposed according to regulations and guidelines |
*ESP = electrical service platform; WTG = wind turbine generator
Submitted to the Bureau of Ocean Energy Management
September 30, 2022
Download original document: “Kitty Hawk Wind: Construction and Operations Plan. Chapter 3: Description of Proposed Activity”
Oils, Fuels, Gases and Lubricants
Author: Sunrise Wind
Table 3.3.1-2. Summary of Maximum Potential Volumes, Oils, Fuels, Gas and Lubricants for the Onshore Converter Station
| Onshore Converter Station Equipment/System | Oil/Fuel/Gas Type | Total Oil/Fuel/Gas Volume |
| (2) High-Voltage Shunt Reactor (fixed) | Mineral Oil Dielectric Fluid | 26,640 gallons (gal) (100,844 liters [L]) |
| (2) High-Voltage Shunt Reactor (variable) | Mineral Oil Dielectric Fluid | 37,000 gal (140,060 L) |
| (4) 345/275-kV Grid Transformers | Mineral Oil Dielectric Fluid | 37,693 gal (107,014 L) |
| Gas-Insulated Switchgear Bay | Sulfur Hexafluoride (SF₆) | 3,500 lbs |
Table 3.3.6-2. Summary of Maximum Potential Volumes Oils, Fuels, Gases and Lubricants for Offshore Converter Station
| Equipment | Oil/Fuel/Gas Type | Oil/Fuel/Gas Volume |
| Transformers and Reactors | Transformer Oil | 105,700 gal (400,000 L) |
| Generator fuel tank | Diesel Fuel | 24,304 gal (92,000 L) |
| Medium and High-Voltage Gas-Insulated Switchgears | Sulfur Hexafluoride (SF₆) | 3,960 lbs (1,796 kg) |
| Crane | Hydraulic Oil | 528 gal (2,000 L) |
| Crane* | Grease | TBD |
| Rotating Equipment* | Lube Oil | TBD |
| Auxiliary Diesel Generator | Lube Oil | 53 gal (200 L) |
| Seawater Lift Pumps | Lube Oil | 119 gal (450 L) |
| Auxiliary Inert Gas System | High-Pressure Nitrogen | 52,834 gal (200,000 L), at 300 bar |
| Auxiliary Diesel Generator Fire Suppression System* | Inert Gas | TBD |
| Auxiliary Transformers | Synthetic Ester Oil | 3,170 gal (12,000 L) |
| Chiller units | Refrigerant HFO1234ze(E) | 40 gal (150 L) |
| Compressed Air Foam System* | Foam Concentrate | TBD |
| Uninterruptible Power Supply Battery* | Battery Acid | TBD |
| Cooling Medium System | Glycol/Water Mix | 7,925 gal (30,000 L) |
| Chilled Water Medium System | Glycol/Water Mix | 5,283 gal (20,000 L) |
Table 3.3.8-2. Summary of Maximum Potential Volumes Oils, Fuels, Gases and Lubricants per wind turbine generator
| System/Component | Oil/Fuel/Gas Type | Oil/Fuel/Gas Volume |
| WTG Bearings and Yaw Pinions | Grease* | 132 gal (500 L) |
| Hydraulic Pumping Unit, Hydraulic Pitch Actuators, Hydraulic Pitch Accumulators | Hydraulic Oil | 159 gal (600 L) |
| Yaw Drives Gearbox | Gear Oil | 79 gal (300 L) |
| Blades and Generator Accumulators | Nitrogen | 104 cubic yd (80 m³) |
| High-Voltage Transformer | Transformer Silicon/Ester Oil | 1,850 gal (7,000 L) |
| Emergency Generator† | Diesel Fuel | 793 gal (3,000 L) |
| Tower Damper and Cooling System | Glycol/Coolants | 3,434 gal (13,000 L) |
*Approximately 26 gal to 40 gal (100 L to 150 L) per large bearing.
†Emergency generator is not housed on the WTG but would be brought to the WTG during commissioning or in an emergency power outage.
Submitted to the Bureau of Ocean Energy Management
August 19, 2022
Download original document: “Sunrise Wind Farm Project: Construction and Operations Plan”
Construction & Operations Plan: oils, fluids, and lubricants
Author: Ocean Wind
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”
