This Powerhorse Portable Generator is built to handle high power demands in emergencies and on the job. Can be fueled either by gasoline or propane. Runs safer with CO shutdown function. Less than 5% total harmonic distortion allows you to enjoy clean power for running sensitive electronics. Not for sale in California.

How The Powerhorse 15,000 Surge Watt Generator Compares To Other Portable Generator Options

Homeowners, EV owners, and mobile business operators evaluating high-output portable generators usually face this question: should I get the Powerhorse 9500 surge watt model, this larger 15,000 surge watt unit, or a whole-home standby generator?

Here's the honest comparison:

Feature Powerhorse 9500 Surge Watt ($799.99) Powerhorse 15,000 Surge Watt ($2,199.99) Whole-Home Standby Generator ($4,000-$8,000+ installed)
Engine 420cc, 13 HP 713cc, 19.72 HP Varies, permanently installed
Rated Watts 7,500w gas, 6,750w propane 12,000w gas, 10,800w propane 10,000-24,000w
Surge Watts 9,500w gas, 8,500w propane 15,000w gas, 13,500w propane Varies by model
Total Harmonic Distortion Not specified as clean power rated Less than 5%, safe for sensitive electronics Typically low, varies by model
Max Amps 31.5 50 Depends on transfer switch and panel
Outlets 6 outlets 7 outlets including 50 Amp 120/240V straight blade (NEMA 14-50R) Hardwired into home electrical panel
Portability Wheel kit, folding handles Wheel kit, folding handles, flat-free tires Not portable, fixed installation
Generator Head Standard 100% copper-wound head Varies
Fuel Capacity 6.6 gal. 10.57 gal. Connected to natural gas or large propane tank
Best Suited For Home backup, moderate power needs EV charging, home backup, mobile businesses, large job sites Automatic whole-home coverage without manual setup

Why The Powerhorse 15,000 Surge Watt Generator Is Worth The Investment

This isn't just a portable generator, it's built with a 100% copper-wound head and less than 5% total harmonic distortion, delivering clean, reliable power for sensitive electronics and high-draw applications like EV charging without the cost or complexity of a permanently installed standby unit.

The Powerhorse 15,000 specifically addresses the needs of homeowners, EV owners, and mobile business operators who need serious power output on demand, whether for emergency home backup, charging an EV, or running equipment at a remote job site or outdoor event.

Clean Power For What Matters Most. Producing less than 5% total harmonic distortion means this generator safely powers sensitive electronics, computers, and EV charging equipment, a level of power quality that many portable generators in this class don't achieve.

Built For High-Demand Applications

The 713cc, 19.72 HP engine delivers 12,000 rated watts and 15,000 surge watts on gasoline, enough to handle EV charging, home backup, and remote worksite demands

Dual fuel technology provides the option of using gasoline or propane and allows switching between fuels without shutting down

A 50 Amp 120/240V straight blade outlet (NEMA 14-50R) supports high-draw applications like EV charging and larger appliance circuits

Engineered For Safety And Reliability

Carbon monoxide monitoring, automatic voltage regulation, and overload protection provide additional safety and peace of mind

The 100% copper-wound head improves efficiency and durability compared to generators using aluminum windings

Low oil shutdown and covered outlets add further protection during extended operation

Real Savings

Dual fuel flexibility avoids being stranded without power if one fuel type isn't available

A 10.57 gallon fuel tank and 10-hour run time at half load reduce the frequency of refueling during extended outages or events

Clean power output reduces the risk of damage to sensitive electronics compared to generators with higher harmonic distortion

Free shipping and no sales tax through Summit Forge Supply keeps the total cost down compared to buying elsewhere and paying tax and freight separately

The Bottom Line Homeowners, EV owners, and mobile business operators who need serious, clean power output can't afford a generator that can't handle high-draw applications or produces dirty power that risks damaging electronics. The Powerhorse 15,000 Surge Watt Generator is built with a 100% copper-wound head, less than 5% total harmonic distortion, and dual fuel flexibility, so it delivers dependable, high-capacity power when demands are highest. For anyone facing serious emergency backup needs, EV charging, or remote power demands, this is the generator built to handle it.

  • 713cc engine makes this model ideal for emergency home backup, EV charging, portable/mobile businesses, RVs, remote worksites, outdoor events and disaster recovery
  • Dual fuel technology provides the option of using gasoline or propane and allows switching between fuels without shutting down
  • Produces less than 5% total harmonic distortion for safely powering sensitive electronics
  • Electric start ensures quick, easy starting (12V, 18Ah battery sold separately)
  • Carbon monoxide monitoring, automatic voltage regulation and overload protection provide additional safety and peace of mind
  • Includes 100% copper-wound head, low oil shutdown and covered outlets
  • Includes wheel kit with folding handles and flat-free tires for easy portability
  • pressure-reducing regulator with 4.92ft. LP hose
Equipment Type Generator (Portable)
Auto Shutdown Yes
Battery Included No
Battery Required Yes
Built-in Inverter No
CARB Compliant No
Enclosure Material Steel
Engine Brand Powerhorse
Engine Cooling Air
Engine Displacement 713 cc
Engine Model DHT720E
Fuel Capacity 10.57 Gal
Fuel Type Gasoline, Propane
Full Load Fuel Consumption 1.7 GPH
Hertz 60
Horsepower 19.72 HP
Hour Meter Yes
Max Amps 50
Noise Level 97 dB
Number of Outlets 7
Outlet Type (2)20 Amp 120V GFCI duplex (NEMA 5-20R), (1)30 Amp 120V locking (NEMA L5-30R), (1)30 Amp 120/240V locking (NEMA L14-30R), (1) 50 Amp 120/240V straight blade(NEMA 14-50R), (1) 12V DC outlet
Overload Protection Yes
Product Dimensions L x W x H (in.) 34.25 x 23.15 x 32.9
Product Weight 348 Lbs
Rated Watts 12,000w
Rated Watts (Propane) 10,800w
Run Time 10 Hrs @ 1/2 Load
Start Type Electric
Surge Watts 15,000w
Surge Watts (Propane) 13,500w
Total Harmonic Distortion 5%
Voltage Multi

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