| Brand | Generac Power Systems |
| Full Model Code | GP18000EFI with COsense (Model G0089170 / 8917) |
| Generator Type | Ultra-High Capacity Commercial-Grade Portable Generator |
| Fuel Type | Gasoline Only |
| Running Watts (Continuous) | 18,000 Watts |
| Starting Watts (Surge/Peak) | 22,500 Watts (Elite transient motor starting capability) |
| Amperage Output (Continuous) | 75 Amps @ 240V | 150 Amps @ 120V |
| AC Voltage & Frequency | 120V / 240V AC @ 60 Hz |
| Engine Type & Displacement | Generac OHVI Twin-Cylinder V-Twin Engine (816cc) with Electronic Fuel Injection (EFI) |
| Lubrication Infrastructure | Full Pressure Lubrication System with Spin-On Automotive Style Oil Filter |
| Engine Starting System | Electric Key Start System (Group U1 Battery Included) |
| Power Quality Performance | TruePower™ Technology yielding clean electricity with less than 5% THD |
| Fuel Tank Capacity | 54.0 Liters (14.2 Gallons) Ultra-Capacity Steel Tank with Integrated Fuel Gauge |
| Run Time at 50% Load | Approx. 9.0 Hours of continuous running on a single fill |
| Control Panel Receptacles | 4x 120V 20A GFCI Outlets, 1x 120V 30A Twist-Lock (L5-30R), 1x 120/240V 30A Twist-Lock (L14-30R), 1x 120/240V 50A High-Power Outlet (NEMA 14-50R) |
| Safety Management Systems | COsense® Triple Protection Carbon Monoxide Intercept, Malfunction Indicator Light (MIL) |
| Chassis & Mobility Features | 1.25" Heavy-Duty Steel Tube Cradle, Dual Folding/Locking Handles, 12" Never-Flat Heavy Wheels |
| Net Weight | 200.9 kg (442.8 lbs) Base Weight |
| Dimensions L x W x H | 1485 mm x 785 mm x 928 mm (58.5" x 30.9" x 36.5") |
| Certifications | EPA Certified and CARB Certified (Legal for operation inside California) |
| Ideal Application | Excellent portable alternative to a permanent home standby generator. Capable of starting up heavy 5-ton central air conditioners, hot water heaters, and whole-house critical loads via manual transfer switches. |