Generac GP15000E - 15,000 Watt Electric Start Portable Generator

Generac GP15000E - 15,000 Watt Electric Start Portable Generator
Model: 5734
$2,699.00
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Ships Monday, Feb 19th
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In-Stock
Ships Monday, Feb 19th
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Free Freight
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*We currently CANNOT ship this product to California or any destination outside of the United States
  • Product Description
  • 148
    Reviews
  • 16
    Product Q&A
  • Recommended Accessories
  • How-To Articles
  • Manuals
Product Description
+
Grade
Style
Run Watts
15,000
Rated Watts
Surge Watts
22,500
Starting Watts
Fuel
Engine
Grade
Emergency
Style
Portable
Run Watts
15,000
Surge Watts
22,500 Starting Watts
Fuel
Gasoline
Engine
Generac
Features
Features
  • Ideal for Job Site or Home Backup Power
  • Generates plenty of electricity for work or home power
  • Electric Start (Battery Included)
  • Starts with a simple press of a button
  • Battery charged when generator in use
  • 992cc Generac OHVI Engine - Designed Specifically For Generators
  • Provides longer life and longer maintenance intervals
  • Automatic Idle Control
  • Reduces noise, increase fuel efficiency and extends life
  • Full Pressure Lubrication
  • Eliminates wear during start-up and extends life
  • 16-Gallon Gas Tank
  • Generates up to 10 hours of electricity at half load
  • Portability Kit
  • Includes 12" all terrain tires and heavy-duty lifting eye
  • This unit is NOT for sale in California
Specifications
Plugs
12-Amp DC
NEMA 5-20R (Wall-Type)
NEMA 5-20R (GFCI)
NEMA L5-30R
NEMA L5-30R
NEMA L14-30R
NEMA 14-50R
Engine
Engine Brand
Generac
Starting System
12-Volt Button Start
HP
30 HP
CC
992 CC
Consumer Engine Warranty
2 Years
Commercial Engine Warranty
1 Year
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Yes
Cast Iron Sleeve
Yes
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Alternator
Brush
Auto Voltage Regulation
Yes
Surge Watts
22500 Watts
Rated Watts
15000 Watts
Fuel Type
Gasoline
Rated Amps
63 Amps
Portability Kit
Pneumatic Wheels
Tank Size
16 Gallons
Run Time @ 50% Load
10 Hours
Fuel Tank Material
Plastic
Fuel Gauge
Yes
Decibel Rating @ 7m
Not Measured by Manufacturer
Idle Control
Yes
Hour Meter
Yes
Voltage Meter
No
Lifting Eye
Yes
Neutral Type
Floating
Battery
Included
Grade Type
Emergency
Plugs
12-Amp DC
1
NEMA 5-20R - Wall-Type
1
NEMA 5-20R - GFCI
1
NEMA L5-30R
2
NEMA L14-30R
1
NEMA 14-50R
1
Overview
Made in USA
Yes
Assembly Required
Yes
Weight
373 Pounds
Product Style
Portable Generator
Product Length
48.5 Inches
Product Width
31 Inches
Product Height
39.5 Inches
Consumer Warranty
2 Years
Commercial Warranty
1 Year
UPC
696471057348
Grade
Style
Run Watts
15,000
Rated Watts
Surge Watts
22,500
Starting Watts
Fuel
Engine
Grade
Emergency
Style
Portable
Run Watts
15,000
Surge Watts
22,500 Starting Watts
Fuel
Gasoline
Engine
Generac
Features
Features
  • Ideal for Job Site or Home Backup Power
  • Generates plenty of electricity for work or home power
  • Electric Start (Battery Included)
  • Starts with a simple press of a button
  • Battery charged when generator in use
  • 992cc Generac OHVI Engine - Designed Specifically For Generators
  • Provides longer life and longer maintenance intervals
  • Automatic Idle Control
  • Reduces noise, increase fuel efficiency and extends life
  • Full Pressure Lubrication
  • Eliminates wear during start-up and extends life
  • 16-Gallon Gas Tank
  • Generates up to 10 hours of electricity at half load
  • Portability Kit
  • Includes 12" all terrain tires and heavy-duty lifting eye
  • This unit is NOT for sale in California
Specifications
Plugs
12-Amp DC
NEMA 5-20R (Wall-Type)
NEMA 5-20R (GFCI)
NEMA L5-30R
NEMA L5-30R
NEMA L14-30R
NEMA 14-50R
Engine
Engine Brand
Generac
Starting System
12-Volt Button Start
HP
30 HP
CC
992 CC
Consumer Engine Warranty
2 Years
Commercial Engine Warranty
1 Year
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Yes
Cast Iron Sleeve
Yes
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Alternator
Brush
Auto Voltage Regulation
Yes
Surge Watts
22500 Watts
Rated Watts
15000 Watts
Fuel Type
Gasoline
Rated Amps
63 Amps
Portability Kit
Pneumatic Wheels
Tank Size
16 Gallons
Run Time @ 50% Load
10 Hours
Fuel Tank Material
Plastic
Fuel Gauge
Yes
Decibel Rating @ 7m
Not Measured by Manufacturer
Idle Control
Yes
Hour Meter
Yes
Voltage Meter
No
Lifting Eye
Yes
Neutral Type
Floating
Battery
Included
Grade Type
Emergency
Plugs
12-Amp DC
1
NEMA 5-20R - Wall-Type
1
NEMA 5-20R - GFCI
1
NEMA L5-30R
2
NEMA L14-30R
1
NEMA 14-50R
1
Overview
Made in USA
Yes
Assembly Required
Yes
Weight
373 Pounds
Product Style
Portable Generator
Product Length
48.5 Inches
Product Width
31 Inches
Product Height
39.5 Inches
Consumer Warranty
2 Years
Commercial Warranty
1 Year
UPC
696471057348
Product Specs
+
Specifications
Plugs
12-Amp DC
NEMA 5-20R (Wall-Type)
NEMA 5-20R (GFCI)
NEMA L5-30R
NEMA L5-30R
NEMA L14-30R
NEMA 14-50R
Engine
Engine Brand
Generac
Starting System
12-Volt Button Start
HP
30 HP
CC
992 CC
Consumer Engine Warranty
2 Years
Commercial Engine Warranty
1 Year
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Yes
Cast Iron Sleeve
Yes
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Alternator
Brush
Auto Voltage Regulation
Yes
Surge Watts
22500 Watts
Rated Watts
15000 Watts
Fuel Type
Gasoline
Rated Amps
63 Amps
Portability Kit
Pneumatic Wheels
Tank Size
16 Gallons
Run Time @ 50% Load
10 Hours
Fuel Tank Material
Plastic
Fuel Gauge
Yes
Decibel Rating @ 7m
Not Measured by Manufacturer
Idle Control
Yes
Hour Meter
Yes
Voltage Meter
No
Lifting Eye
Yes
Neutral Type
Floating
Battery
Included
Grade Type
Emergency
Plugs
12-Amp DC
1
NEMA 5-20R - Wall-Type
1
NEMA 5-20R - GFCI
1
NEMA L5-30R
2
NEMA L14-30R
1
NEMA 14-50R
1
Overview
Made in USA
Yes
Assembly Required
Yes
Weight
373 Pounds
Product Style
Portable Generator
Product Length
48.5 Inches
Product Width
31 Inches
Product Height
39.5 Inches
Consumer Warranty
2 Years
Commercial Warranty
1 Year
UPC
696471057348
Reviews
(148)
+
Generac 5734 Reviews & Ratings
91% of Reviewers Recommend This Product
Product Q&A
(16)
+
I need help getting a power cord and transfer switch for my 15 kw Generac portable generator that currently sits outside. Would like to be able start my generator, flick a switch and my whole house is powered.
Matt Bell 
from Florida 
May 21, 2014
Read Response +
Answer
What you are looking for is a whole house manual transfer switch. The size switch would be dependent on your incoming amperage from the utility company. The most common size is 200A and the following switch is the most popular.

Reliance-Controls-TWB2005DR

This switch would be installed immediately after the electric meter so the generator can power your entire panel through the switch. You will need to manage the circuits in the electrical panel so you do not overload the generator and it is recommended that all circuit breakers are shut down when connecting a running generator (never want to connect or start a generator with any electrical loads present).

You would then also need the proper 50A power inlet box to plug the generator into using a 50A generator power cord. The following models are recommended....

50A 25 Foot Power Cord

50A Power Inlet Box

Please note that portable generators are not designed to be left outdoors without proper coverage as they are not water proofed.

We recommend you consult with a certified electrician who is familiar with your local electrical codes for installation.

Hide Response -
I have a 15,000 watt generac gasoline generator, is a natural gas conversion kit avaveibel ? is a permanent enclosier avalible ?
Gene Tedder 
from Florida 
December 18, 2013
Read Response +
Answer
Thanks for your inquiry.....Generator manufacturers do not offer conversion kits or permanent enclosures for portable generators.

We at Power Equipment Direct do not recommend converting your gasoline portable generator to an alternative fuel and doing so will void the manufacturer’s warranty and may cause damage to the generator itself. These conversions are not recommended by any of the generator manufacturers.

Gasoline has an Ignition Point of 475–536 °F. When a generator is manufactured to run solely on gasoline these temperatures are taken into consideration and the engine components are made to handle these temperatures.

Propane (LP) has an Ignition Point of 920-1020°F and Natural Gas (NG) has an Ignition Point of 900–1500°F. These higher temperatures will cause damage over time on any “gas only” powered engine.

The following guidelines cover Honda engines (Also applies to other engine manufacturers) modified to run on fuels other than the one for which they were designed, such as converting an engine to run on propane (LP) or natural gas (NG).


• Honda gasoline engines are certified to operate on unleaded fuel with a pump octane rating of 86 or higher, containing no more than 10% ethanol (E10).

• Any change to the original configuration of a certified Honda engine is a potential violation of the Clean Air Act prohibition against tampering (40 CFR §1068.101(b)(1)). The tampering prohibition is important because poorly designed and installed modifications can increase emissions.

• The Clean Air Act prohibits anyone from removing or rendering inoperative any device or design element installed on engines in compliance with regulations. These actions are considered tampering, which carries a civil penalty up to $37,500 for each engine or equipment in violation.

• Engines converted by a third party (OEM, dealer, converter, etc.) to run on a different fuel type must be recertified with the EPA on the new fuel to comply with applicable emission standards. The third party must recertify under a new family and notify Honda to not include the modified engines in the original family.

• Converted engines to be sold for use in California must meet CARB requirements and the converter must obtain approval from CARB. EPA certificates or tampering exemptions will not satisfy the requirement for CARB certification.

• Once certified, the third party must remove the Honda emission control label and apply a compliant emission control label for the new fuel indicating the new certifying manufacturer. Honda will no longer assume any responsibility as the certifying manufacturer.

• The Honda Distributor's Limited Warranty does not extend to parts affected or damaged by the conversion to or use of fuel other than the fuel for which the engine was originally designed.


• Honda offers V-twin engines specifically designed and certified for use in LP/NG applications. The engines incorporate special design features that address the higher combustion temperatures and reduced lubrication to the valve guide area (since it is a dry fuel, not liquid). Please contact your sales representative or distributor for additional information.


Disclaimer: The guidance provided is intended for Honda dealer/distributor informational purposes only and not for the purpose of providing legal advice. You must contact the appropriate certifying agencies if you require information on how regulations apply to your specific application.

The regulations and additional information can be found at these web sites:

EPA Regulations

CARB Compliance
Hide Response -
I was interested in buying the Generac GP17500E. I did my homework and believe it is the one for me. The questions I have are: 1. Can I convert it to propane? 2. How long will a 15lb propane tank last on this generator if I'm not powering the whole house and just the bare necessities? Thank you Ryan
Ryan  
from New York 
October 16, 2013
Read Response +
Answer
Thanks for your inquiry.

We at Power Equipment Direct do not recommend converting your gasoline portable generator to an alternative fuel and doing so will void the manufacturer’s warranty and may cause damage to the generator itself. These conversions are not recommended by any of the generator manufacturers.

Gasoline has an Ignition Point of 475–536 °F. When a generator is manufactured to run solely on gasoline these temperatures are taken into consideration and the engine components are made to handle these temperatures.

Propane (LP) has an Ignition Point of 920-1020°F and Natural Gas (NG) has an Ignition Point of 900–1500°F. These higher temperatures will cause damage over time on any “gas only” powered engine.

The following guidelines cover Honda engines (Also applies to other engine manufacturers) modified to run on fuels other than the one for which they were designed, such as converting an engine to run on propane (LP) or natural gas (NG).


• Honda gasoline engines are certified to operate on unleaded fuel with a pump octane rating of 86 or higher, containing no more than 10% ethanol (E10).

• Any change to the original configuration of a certified Honda engine is a potential violation of the Clean Air Act prohibition against tampering (40 CFR §1068.101(b)(1)). The tampering prohibition is important because poorly designed and installed modifications can increase emissions.

• The Clean Air Act prohibits anyone from removing or rendering inoperative any device or design element installed on engines in compliance with regulations. These actions are considered tampering, which carries a civil penalty up to $37,500 for each engine or equipment in violation.

• Engines converted by a third party (OEM, dealer, converter, etc.) to run on a different fuel type must be recertified with the EPA on the new fuel to comply with applicable emission standards. The third party must recertify under a new family and notify Honda to not include the modified engines in the original family.

• Converted engines to be sold for use in California must meet CARB requirements and the converter must obtain approval from CARB. EPA certificates or tampering exemptions will not satisfy the requirement for CARB certification.

• Once certified, the third party must remove the Honda emission control label and apply a compliant emission control label for the new fuel indicating the new certifying manufacturer. Honda will no longer assume any responsibility as the certifying manufacturer.

• The Honda Distributor's Limited Warranty does not extend to parts affected or damaged by the conversion to or use of fuel other than the fuel for which the engine was originally designed.


• Honda offers V-twin engines specifically designed and certified for use in LP/NG applications. The engines incorporate special design features that address the higher combustion temperatures and reduced lubrication to the valve guide area (since it is a dry fuel, not liquid). Please contact your sales representative or distributor for additional information.


Disclaimer: The guidance provided is intended for Honda dealer/distributor informational purposes only and not for the purpose of providing legal advice. You must contact the appropriate certifying agencies if you require information on how regulations apply to your specific application.

The regulations and additional information can be found at these web sites:

EPA - EPA

CARB - CARB


The run times will always vary based on the actual load put on the generator.


Hide Response -
Mike, it appears the GP15000E generac portable has two plugs one for 120/240 30 amp. and one 50 amp 120/240. That being the case, can one install two inlet boxes and two manual transfers switches, one at 30 amps and one at 50 amps, and wire them up that way. Since it is one power source should not be an issue of cycles being different as power is from one source
Jim Biggers 
from New York 
August 20, 2013
Read Response +
Answer
It is not recommended to connect to 2 separate panels via the generators outlets due to causing off balanced loads on the alternator and damaging the generator and possibly the equipment you are connecting to it.

CAUTION: EQUIPMENT DAMAGE – Balanced Load

Failure to properly limit and balance the load applied to the generator will cause the generator to produce low voltage and may damage the engine generator set. It may also cause severe damage to the loads connected to the generator at that time. Improper loading of the generator set constitutes abuse and will not be covered by warranty.
Hide Response -
I have a Generac GP15000E and I'm trying to purchase a cover that fits. Could you recommend one?
JAMES Shipley 
from Maryland 
August 20, 2012
Read Response +
Answer
The Classic Accessories X-Large cover has been fit tested and fits the Generac GP15000E generator perfectly.
Hide Response -
I have the GP15000E but plan to purchase a larger automatic standby generator. Currently only have a 30 AMP inlet installed--so not using all power. Can I install a transfer box (100A or 200A) and a 50 AMP inlet box to use the current generator and still use the transfer box when we install the larger automatic generator? If so, what do you recommend?
DB 
from Ohio 
July 06, 2012
Read Response +
Answer
DB, manual transfer switches and automatic transfer switches may sound similar, but they are actually nothing alike. If you purchase a standby generator, you'll need to get the automatic transfer switch. Otherwise, the generator won't be able to sense when power goes on and off.

As for your manual transfer switch, here's the kit that we recommend with the GP15000E:

http://www.electricgeneratorsdirect.com/Generac-6296/p8535.html
Hide Response -
Hey Jim, I have the GP17500. How do you charge the battery? In the package there is a 12v start cable. Does this hook up to a trickle charger or is some way else to charge the batt when not in use? Thank you, Anthony Norcia
Anthony Norcia 
from Connecticut 
February 18, 2012
Read Response +
Answer
The generator charges the battery when in use and the generator should be started every 7 days per the owner's manual. This properly lubricates the engine, keeps fuel moving through the carburetor to prevent clogging and it charges the battery.

Otherwise, you need to follow the long term storage process according to the manual and then us a trickle charger on the battery to keep it charged.
Hide Response -
What is the maximum output in watts out of the NEMA 14-50R outlet I can get from a XP 10000E Generac Generator
Michael Teixeira 
from Connecticut 
January 08, 2012
Read Response +
Answer
Any 50A outlet, receptacle, cord or switch has a maximum of 12,500 watts....Amps x Volts = Watts.
Hide Response -
After buying the GP15000E (5734), what other items do I need to have to connect it to my home and approx how much would it cost to have an electrician put it all together?
Claude Dowdy 
from Texas 
June 07, 2011
Read Response +
Answer
The other items needed to tie this generator to your home would be a manual transfer switch, a power cord and the outdoor power inlet box. Pricing for the installation can vary by location and unfortunately we cannot provide a cost. See links below for recommended installation models:

Manual Transfer Switch - 50A

25 Ft Generator Cord - 50A

Power Inlet Box - 50A
Hide Response -
Ref: Generac Model 5735 We have a 200 AMP service and would like to use the 100 AMP manual transfer switch. Does the 100 AMP switch work the same way as the Kit50-25SB? Is the reason for the price difference the circuit breakers for the 100 AMP switch?
Ken McDaniel 
from Louisiana 
May 04, 2011
Read Response +
Answer
Yes, the TRC1005C operates the same as the Kit50-25SB except the Kit includes the breakers, power inlet box and power cord. All of these items would need to be purchased when selecting the TRC1005C.
Hide Response -
I just received the generator I purchased from you (Generac GP5500 - 5500 Watt Portable Generator) and it comes with a bottle of oil. It does not say on the bottle what type it is. 30 weight or 10w30? Do you know so that it is the proper oil to use for the current temperature. Thanks, Larry
Larry 
from Ohio 
March 26, 2011
Read Response +
Answer
Generac uses 10W30 in their kits that get sent with the portable generators.
Hide Response -
SO IF THERE IS NO ALTERNATOR, DO YOU CHARGE THE BATTERY. WHILE THE UNIT IS RUNNING , OR DO YOU WAIT TILL AFTER YOU HAVE USED THE UNIT?
JOHN AUKERMAN 
from Ohio 
March 24, 2011
Read Response +
Answer
Charging of the battery in the generator is done when the unit is not in operation. The provided charger is plugged into a 120V wall outlet and the other end goes into the designated plug-in on the control panel.
Hide Response -
Hi Jim I bought the generac 15000 generator , it works really good the only problem I have is that when I turn it off it back fires once right after the engine shuts off . Is there something I could do to make it stop backfire . The generator only has 5 hours . Any help would be helpful thank you .
George 
from New York 
March 06, 2011
Read Response +
Answer
The unit may be backfiring due to the gasoline quality. It is always best to use clean fresh fuel as fuel can go bad within 30 days. The only other option would be to have a certified Generac service center check the unit for you to see if the carburetor is out of adjustment.
Hide Response -
Hi Mike. I bought a 17.5 kw Generac and want to use it to power the whole house. Is there a way to get more than 50 amps to a transfer switch.? What transfer switch would you choose?
Peter Matheson 
from Nevada 
February 19, 2011
Read Response +
Answer
The best way to connect to your home panel and have the ability to use all your circuits is to use a manual transfer panel based on the amperage size of your existing panel. (100A or 200A) This transfer panel would be mounted between your meter and your main panel breaker so you have control of all of your circuits. You still need to control them according to the load without exceeding the maximum of 12,500 watts through the 50A outlet. In a normal situation no one normally uses anywhere near 12,500 watts at any one time. The link below will show you some of the switches we have to give you more options.

100A Transfer Panels

200A Transfer Panels
Hide Response -
Jim, the GP15000E has one 50 amp 240v outlet. Assuming I can only use one outlet to feed into the connection box on the outside of my house, how much 120v current can I expect to have at my breaker box? How can I maximize the 120V current available for use in my house?
David 
from Indiana 
January 20, 2011
Read Response +
Answer
The 50A outlet on the Generator is 120/240V which does provide the 120V you are looking for and a maximum of 12,500 watts can be run through the 50A outlet. When the generator is sized properly at 80% of the generators output capacity the 50A outlet is sufficient enough for emergency usage.
Hide Response -
How does this generator start in cold weather with the electric start? What is the difference between OHV engine & Generac's OHVI engine?
Daryl Hammond 
from Ohio 
January 17, 2011
Read Response +
Answer
Portable generators are normally stored inside and the B&S 30471 comes with a float style battery charger which is plugged into the generator when not in use. This allows the generator battery to have a sufficient charge when the generator is needed to start.

An OHV (Overhead Valve) engine is compact designed and generally makes the unit operate quieter. The Generac OHVI (Overhead Valve Industrial) engine is built robustly with premium power and high performance and comes with a fully pressurized oil lubrication system and spin-on filter.
Hide Response -
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