2025 Generac Mobile Stationary Generators SG150
- Year 2025
- Make Generac Mobile
- Model Stationary Generators
2025 Generac Mobile Stationary Generators SG150
2025 Generac Mobile Stationary Generators SG150
As electrical grid outages become more common it is important to be prepared for the potential of a power outage. Keep all your business’s essentials up and running with Generac's 14.2L 150kW generator. Our rugged natural gas generators give you all the backup power you need, in less than 10 seconds, until grid power is restored. All of our industrial gas generators are completely cost-effective and give you the best value for the output so you can afford more of what you need for your business. Generac is one of North America’s largest suppliers of power generation equipment. For more than five decades, Generac has designed and manufactured diesel, natural gas, and bi-fuel generators that meet the demands of any application.
Features may include:
Generator Enclosure- Generac manufactures its own enclosures, ensuring each unit combines the highest level of durability, noise reduction, weather resistance, and streamlined design.
- Generac builds its spark-ignited engines from the block up utilizing advanced engineering expertise.
- Generac industrial alternators are machine wound, machine inserted, and machine varnished for the ultimate in consistency.
- Generac engineers its generator controls with safety and convenience as top priorities.
- Generac's Modular Power Systems (MPS) boast a rate of up to 99.999% reliability, and are more cost-effective and flexible than single generators with the same load capacity.
Engine
Engine Manufacturer
Generac
Cylinder Liners
6
Engine Type
In-line
Displacement
864.71 in3 (14.2 L)
Bore
5.31 in (135 mm)
Stroke
6.50 in (165 mm)
Compression Ratio
9.5:1
Intake Design
Air Method: Turbocharged/Aftercooled
Ignition
Electronic
Governor
Electronic
Cooling
Type: Pressurized Closed Recovery | Closed Coolant Recovery System | UV/Ozone Resistant Hoses | Factory-Installed Radiator | 50/50 Ethylene Glycol Antifreeze | Radiator Drain Extension
Engine Power
Standby-Demand Response/Prime Horsepower at Rated kW: 232 hp / 209 hp | Standby/Demand Response Single-Phase 120/240 VAC @1.0pf: 150 kW/150 kVA / 625 Amps | Standby/Demand Response Three-Phase 120/208 VAC @0.8pf: 150 kW/188 kVA / 521 Amps | Standby/Demand Response: Three-Phase 120/240 VAC @0.8pf: 150 kW/188 kVA / 452 Amps | Standby/Demand Response Three-Phase 277/480 VAC @0.8pf: 150 kW/188 kVA / 226 Amps | Standby/Demand Response: Three-Phase 346/600 VAC @0.8pf: 150 kW/188 kVA / 181 Amps | Prime Single-Phase 120/240 VAC @1.0pf: 135 kW/135 kVA / 563 Amps | Prime Three-Phase 120/208 VAC @0.8pf: 135 kW/169 kVA / 469 Amps | Prime Three-Phase 120/240 VAC @0.8pf: 135 kW/169 kVA / 406 Amps | PrimeThree-Phase 277/480 VAC @0.8pf: 135 kW/169 kVA / 203 Amps | Prime Three-Phase 346/600 VAC @0.8pf: 135 kW/169 kVA / 163 Amps
Rated Engine Speed
Standby-Demand Response/Prime: 1,800 RPM / 1,800 RPM
Fuel System
Fuel Type
Natural Gas
Fuel System
Carburetor: Down Draft | NPT Fuel Connection on Frame | Primary and Secondary Fuel Shutoff
Fuel Usage, 100% Load
Standby-Demand Response/Prime 25%: 840 scfh (23.8 m3/hr) / 780 scfh(22.1 m3/hr) | Standby-Demand Response/Prime 50%: 1,380 scfh (39.1 m3/hr) / 1,260 scfh (35.7 m3/hr) | Standby-Demand Response/Prime 75%: 1,800 scfh (51.0 m3/hr) / 1,680 scfh (47.6 m3/hr) | Standby-Demand Response/Prime 100%: 2,220 scfh (62.9 m3/hr) / 2,040 scfh (57.8 m3/hr)
Battery
Battery
Size: See Battery Index 0161970SBY | Voltage: (2) - 12 VDC
Battery Charger Input
Alternator: 57.5 A
Electric
Electrical
System Voltage: 24 VDC | Ground Polarity: Negative (-)
Alternator
Standard Model: K0150124Y21 | Poles. 4 | Field Type: Revolving | Insulation Class - Rotor. H | Insulation Class - Stator. H | Total Harmonic Distortion: <5% (3-Phase) | Telephone Interference Factor (TIF): <50 | Standard Excitation: Permanent Magnet | Bearings. Sealed Ball | Coupling: Direct | Voltage Regulator Type: Digital | Regulation Accuracy (Steady State): ±0.25% | UL2200 GENprotect™ | Class H Insulation Material | 2/3 Pitch | Skewed Stator | Permanent Magnet Excitation | Sealed Bearing | Amortisseur Winding | Full Load Capacity Alternator
Operational
Operating Conditions
Frequency Regulation (Steady State): ±0.25%
Operating Speed
Fan: 1,894 RPM | Standby-Demand Response/Prime Piston: 1,950 ft/min (594 m/min) / 1,950 ft/min (594 m/min)
Operating Temperature, Maximum
Standby-Demand Response/Prime Maximum Operating Ambient Temperature: 122 °F (50 °C) / 122 °F (50 °C) | Standby-Demand Response/Prime Exhaust Temp (Rated Output - Post Silencer): 1,318 °F (714.4 °C) / 1,300 °F (704.4 °C)
Hydraulics
Pump Type
Oil: Gear Driven
Oil Filter
Type: Full-Flow with Cartridge
Hydraulic Flow
Standby-Demand Response/Prime Coolant Flow: 90 gpm (340.7 Lpm) / 90 gpm (340.7 Lpm)
Airflow
Standby-Demand Response/Prime Air Flow (Fan Air Flow Across Radiator): 9,162 scfm (259.4 m3/min) / 9,162 scfm (259.4 m3/min) | Standby-Demand Response/Prime Flow at rated power: 354 cfm (10.0 m3/min) / 320 cfm (9.1 m3/min) | Standby-Demand Response/Prime Exhaust Flow (Rated Output): 1,166 scfm (33.0 m3/min) / 1,043 scfm (29.5 m3/min)
Maximum Pressure
Operating Fuel Pressure: 7 - 11 in H2O (1.7 - 2.7 kPa) | Standby-Demand Response/Prime Maximum Additional Radiator Backpressure: 0.5 in H2O (0.12 kPa) / 0.5 in H2O (0.12 kPa) | Standby-Demand Response/Prime BMEP: 118 psi (814 kPa) / 106 psi (732 kPa) | Standby-Demand Response/Prime Max. Backpressure (Post Silencer). 0.75 inHg (2.54 Kpa) / 0.75 inHg (2.54 kPa)
Dimensions
Dimensions
Fan Diameter: 30 in (762 mm)
Length
Open Set: 128.0 in (3,251 mm) | Weather Protected Enclosure: 154.4 in (3,922 mm) | Level 1 Sound Attenuated Enclosure: 179.9 in (4,569 mm) | Level 2 Sound Attenuated Enclosure: 154.4 in (3,922 mm)
Width
Open Set: 52.9 in (1,344 mm) | Weather Protected Enclosure: 54.0 in (1,372 mm) | Level 1 Sound Attenuated Enclosure: 54.0 in (1,372 mm) | Level 2 Sound Attenuated Enclosure: 54.0 in (1,372 mm)
Height
Open Set: 62.3 in (1,582 mm) | Weather Protected Enclosure: 69.8 in (1,773 mm) | Level 1 Sound Attenuated Enclosure: 69.8 in (1,773 mm) | Level 2 Sound Attenuated Enclosure: 93.3 in (2,370 mm)
Capacities
Oil capacity
Engine: 36.2 qt (34.3 L)
Cooling System
Standby-Demand Response/Prime Coolant System Capacity: 10.5 gal (39.7 L) / 10.5 gal (39.7 L)
Weights
Weight
Open Set: 5,281 - 6,031 lbs (2,395 - 2,735 kg) | Weather Protected Enclosure Steel: 6,261 - 7,596 lbs (2,839 - 3,445 kg) | Weather Protected Enclosure Aluminum: 5,795 - 6,786 lbs (2,628 - 3,078 kg) | Level 1 Sound Attenuated Enclosure Steel: 6,566 - 8,059 lbs (2,978 - 3,655 kg) | Level 1 Sound Attenuated Enclosure Aluminum: 5,926 - 7,000 lbs (2,688 - 3,175 kg) | Level 2 Sound Attenuated Enclosure Steel: 6,801 - 8,632 lbs (3,084 - 3,915 kg) | Level 2 Sound Attenuated Enclosure Aluminum: 6,027 - 7,247 lbs (2,733 - 3,287 kg)
Features
Features
Number of Main Bearings: 7 | Lifter Type: Solid | Fan Type: Pusher | Oil Drain Extension | Air Cleaner | Critical Silence | Factory Filled Oil and Coolant | Radiator Duct Adapter (Open Set Only) | Shipped Loose Catalyst Silencer (Open Set Only) | Oil Temperature Indication and Alarm | Level 1 Fan and Belt Guards (Open Set Only) | Battery Charging Alternator | Battery Cables | Battery Tray | Solenoid Activated Starter Motor | Internal Genset Vibration Isolation | Separation of Circuits - High/Low Voltage | Separation of Circuits - Multiple Breakers | Wrapped Exhaust Piping | Standard Factory Testing | Silencer Mounted in the Discharge Hood (Enclosed Units Only) | Ready to Accept Full Load in <10 Seconds
Construction Material
Connecting Rods: Carbon Steel | Cylinder Head: Cast Iron GT250, OHV | Cylinder Liners: Ductile Iron | Piston Type: Aluminum | Crankshaft Type: Ductile Iron | Intake Valve Material: Special Heat-Resistant Steel | Exhaust Valve Material: High Temperature Steel Alloy | Hardened Valve Seats: High Temperature Steel Alloy | Stainless Steel Flexible Exhaust Connection | Rubber-Booted Engine Electrical Connections
Warranty
Warranty
2 Year Limited Warranty (Standby Rated Units) | 1 Year Limited Warranty (Prime Rated Units)