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Oils, Fuels, Gases and Lubricants
Author: | Environment, Massachusetts, Technology
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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”
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