What is the power output of the Generac GP15500E EFI generator?

The Generac GP15500E EFI delivers 15,500 running watts and up to 19,500 starting watts, making it suitable for heavy-duty power demands and large backup loads.

Is the Generac GP15500E EFI compliant in all U.S. states?

This generator is 49-state compliant and approved for use in most U.S. states, excluding California due to emissions regulations.

What are the benefits of EFI technology in the Generac GP15500E?

Electronic Fuel Injection (EFI) improves fuel efficiency, provides smoother power delivery, enhances cold-weather starting, and reduces maintenance compared to carbureted engines.

Does the Generac GP15500E include carbon monoxide safety protection?

Yes, it features COsense® technology, which continuously monitors carbon monoxide levels and automatically shuts down the generator if unsafe conditions are detected.

Is the Generac GP15500E suitable for whole-home backup power?

The GP15500E EFI is capable of supporting large homes, essential appliances, and heavy electrical loads when properly connected with a transfer switch.

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Generac GP15500E EFI 49st w/ CO - 7705

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Order today — we confirm lead time at checkout

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Call 888-876-0007 for a pallet-quote

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

Generac GP15500E EFI 49st w/ CO - 7705

Trusted by 1,000s of Contractors & Installers

Available to Order — typically ships in 2–4 weeks

SKU PES-PS-GEN-00133

OEM Authorized Dealer Full OEM Warranty Ships in 2–4 weeks

$3,989.00 USD

$ $3,989.00 USD

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Quantity

Secure checkout · Wire/ACH accepted on quotes · Freight arranged for you

Ships via LTL freight — palletized, liftgate available. Our team confirms freight details within 1 business day.

SKU: PES-PS-GEN-00133
MPN: 7705

Complete the job

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Transfer switch Generac 6852 30-Amp 6 - 8-Circuit HomeLink Indoor Manual Transfer Switch Kit

$376.99

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$1.36

Secure Payment Methods

Available to Order

Order today — we confirm lead time at checkout

Volume Pricing

Call 888-876-0007 for a pallet-quote

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

Request a Free Quote

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Generac GP15500E EFI 49st w/ CO - 7705 $3,989.00

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Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

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Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

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You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

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Generac GP15500E EFI Portable Generator – 49 ST w/ CO – MPN 7705

The Generac GP15500E EFI (MPN 7705) is a high-capacity 49-state compliant portable generator designed for commercial, industrial, and whole-home backup applications. Its EFI (Electronic Fuel Injection) engine improves reliability, fuel efficiency, and cold-weather performance, while COsense® safety technology adds advanced carbon monoxide monitoring.

Key Features

15,500 running watts / 19,500 starting watts
EFI engine for fuel-efficient, stable performance
Electric start for fast and easy operation
COsense® technology for enhanced safety
Heavy-duty steel frame for rugged use
Large fuel tank enabling extended run-times
Integrated lifting eye for easy transport and placement

Specifications

MPN	7705
Running Watts	15,500W
Starting Watts	19,500W
Engine Type	EFI OHV engine
Start Type	Electric
Compliance	49-State
Fuel Type	Gasoline

Applications

Ideal for commercial sites, large homes, outdoor events, disaster response, and heavy equipment power needs.

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Generac GP15500E EFI Portable Generator – 49 ST w/ CO – MPN 7705

Key Features

15,500 running watts / 19,500 starting watts
EFI engine for fuel-efficient, stable performance
Electric start for fast and easy operation
COsense® technology for enhanced safety
Heavy-duty steel frame for rugged use
Large fuel tank enabling extended run-times
Integrated lifting eye for easy transport and placement

Specifications

MPN	7705
Running Watts	15,500W
Starting Watts	19,500W
Engine Type	EFI OHV engine
Start Type	Electric
Compliance	49-State
Fuel Type	Gasoline

Applications

Ideal for commercial sites, large homes, outdoor events, disaster response, and heavy equipment power needs.

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