Generac 40KW 4.5L 120/240 1P NG-LP AL
Generac 40KW 4.5L 120/240 1P NG-LP AL
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SKU  PES-PS-GEN-00169

Generac 40KW 4.5L 120/240 1P NG-LP AL

Generac 40KW 4.5L 120/240 1P NG-LP AL

$20,418.08 USD
$ $20,418.08 USD
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  • SKU:PES-PS-GEN-00169
  • Brands: Generac
  • Isfollow: true
  • Isindex: true
  • Mpn number: XG04045ANAX
  • MPN Number: XG04045ANAX
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In Stock

Get yours today!

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9+ sold

In the last 7 days

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Flat Rate Shipping - Calculated at Checkout

Get it between Mon, Sep 22 - Wed, Sep 24

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Free Returns

Free Returns within 30 Days of Purchase

Lifetime Customer Support

Unlimited lifetime support, always available.

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Generac 40KW 4.5L 120/240 1P NG-LP AL Standby Generator

The Generac 40KW 4.5L 120/240 1P NG-LP AL is a powerful and reliable standby generator designed for both residential and commercial use. It is powered by a durable 4.5-liter engine that delivers consistent and stable electricity at 120/240 volts single-phase. This model supports dual fuels, natural gas (NG) and liquid propane (LP), offering flexibility for various setup needs. It is engineered to ensure your critical systems remain protected and operational during power outages.

Efficient Power Solution with Generac 40KW

The Generac 40KW provides homeowners and businesses with an effective and dependable source of backup power. This home standby generator is built to offer seamless transition from utility power to backup in the event of a blackout. Its 4.5L engine operates quietly and efficiently, delivering power without interruptions to essential appliances and equipment. Choosing this model means investing in Generac’s advanced technology and decades of experience in generator manufacturing.

Durable Construction for Long-Term Reliability

The aluminum enclosure of this generator guards against rust, corrosion, and damage from harsh weather conditions. It is an ideal choice for outdoor installation, even in challenging climates. Homeowners investing in a standby generator look for products that require minimal maintenance yet perform reliably throughout the year. The Generac 40KW meets such expectations with its rugged build and simple maintenance process.

For added confidence, professional generac generator installation ensures the unit is safely and correctly positioned. This proactive approach also helps prolong the lifespan of the generator and maintain warranty coverage.

Professional Installation and Reliable Support

To maximize the life and efficiency of your standby generator, professional generac generator installation is highly recommended. Certified experts follow all necessary safety protocols and technical guidelines during setup to ensure optimal operation. Proper installation safeguards your warranty and helps avoid future issues. The well-regarded generac customer service team is available to assist with installation questions and provides valuable resources for troubleshooting and maintenance.

Ideal for Residential and Commercial Use

This generator supports powering multiple devices within larger homes or small commercial environments at the same time. The ability to run on two different fuel types offers freedom from dependency on a single energy source. This flexibility is especially useful during fuel shortages or disruptions. Essential household or business systems like HVAC, lighting, heating, air conditioning, electronics, and even medical equipment receive continuous power during outages.

Automatic transfer switch integration guarantees seamless and instantaneous changeover from utility to generator power. Customers appreciate the safety and peace of mind this reliable system provides during emergencies.

Energy Efficiency and Quiet Operation

With its advanced engine design, the Generac 40KW standby generator maximizes power output while minimizing fuel consumption and emissions. This environmentally conscious performance makes it a responsible choice for users. Furthermore, the quiet operation ensures it complies with noise restrictions common in residential neighborhoods. Compared to older generator models, this unit operates with significantly reduced noise levels, promoting comfort in the surrounding area.

Regular upkeep, performed by the owner or a professional technician, maintains this high level of efficiency. Access to user manuals and ongoing support via generac customer service guarantees continued assistance for maintenance or troubleshooting needs.

Why Choose the Generac 40KW Model?

The Generac 40KW standby generator stands out as a top choice for customers preparing for unpredictable power failures. It delivers consistent and reliable performance combined with long-lasting durability. This model covers both home standby generator requirements and light commercial uses with ease and efficiency. Customers benefit from an easy-to-use, highly functional power backup system that aligns with today’s energy demands.

When paired with expert generac generator installation and dependable generac customer service, this unit offers a trusted and effective backup power solution for any essential system protection.

What is your return policy?

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.

What’s covered by your return policy?

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.

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?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Generac 40KW 4.5L 120/240 1P NG-LP AL Standby Generator

The Generac 40KW 4.5L 120/240 1P NG-LP AL is a powerful and reliable standby generator designed for both residential and commercial use. It is powered by a durable 4.5-liter engine that delivers consistent and stable electricity at 120/240 volts single-phase. This model supports dual fuels, natural gas (NG) and liquid propane (LP), offering flexibility for various setup needs. It is engineered to ensure your critical systems remain protected and operational during power outages.

Efficient Power Solution with Generac 40KW

The Generac 40KW provides homeowners and businesses with an effective and dependable source of backup power. This home standby generator is built to offer seamless transition from utility power to backup in the event of a blackout. Its 4.5L engine operates quietly and efficiently, delivering power without interruptions to essential appliances and equipment. Choosing this model means investing in Generac’s advanced technology and decades of experience in generator manufacturing.

Durable Construction for Long-Term Reliability

The aluminum enclosure of this generator guards against rust, corrosion, and damage from harsh weather conditions. It is an ideal choice for outdoor installation, even in challenging climates. Homeowners investing in a standby generator look for products that require minimal maintenance yet perform reliably throughout the year. The Generac 40KW meets such expectations with its rugged build and simple maintenance process.

For added confidence, professional generac generator installation ensures the unit is safely and correctly positioned. This proactive approach also helps prolong the lifespan of the generator and maintain warranty coverage.

Professional Installation and Reliable Support

To maximize the life and efficiency of your standby generator, professional generac generator installation is highly recommended. Certified experts follow all necessary safety protocols and technical guidelines during setup to ensure optimal operation. Proper installation safeguards your warranty and helps avoid future issues. The well-regarded generac customer service team is available to assist with installation questions and provides valuable resources for troubleshooting and maintenance.

Ideal for Residential and Commercial Use

This generator supports powering multiple devices within larger homes or small commercial environments at the same time. The ability to run on two different fuel types offers freedom from dependency on a single energy source. This flexibility is especially useful during fuel shortages or disruptions. Essential household or business systems like HVAC, lighting, heating, air conditioning, electronics, and even medical equipment receive continuous power during outages.

Automatic transfer switch integration guarantees seamless and instantaneous changeover from utility to generator power. Customers appreciate the safety and peace of mind this reliable system provides during emergencies.

Energy Efficiency and Quiet Operation

With its advanced engine design, the Generac 40KW standby generator maximizes power output while minimizing fuel consumption and emissions. This environmentally conscious performance makes it a responsible choice for users. Furthermore, the quiet operation ensures it complies with noise restrictions common in residential neighborhoods. Compared to older generator models, this unit operates with significantly reduced noise levels, promoting comfort in the surrounding area.

Regular upkeep, performed by the owner or a professional technician, maintains this high level of efficiency. Access to user manuals and ongoing support via generac customer service guarantees continued assistance for maintenance or troubleshooting needs.

Why Choose the Generac 40KW Model?

The Generac 40KW standby generator stands out as a top choice for customers preparing for unpredictable power failures. It delivers consistent and reliable performance combined with long-lasting durability. This model covers both home standby generator requirements and light commercial uses with ease and efficiency. Customers benefit from an easy-to-use, highly functional power backup system that aligns with today’s energy demands.

When paired with expert generac generator installation and dependable generac customer service, this unit offers a trusted and effective backup power solution for any essential system protection.

What is your return policy?

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.

What’s covered by your return policy?

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.

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?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

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Prepare for Anything

From hurricanes to blackouts, reliable solar power ensures you're able to keep your home & family safe no matter what comes your way.

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Making one-click solar solutions simple since 2018. Whether you’re powering a cabin, charging devices, or backing up your home.

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Secure Your Independence

Say goodbye to reliance on the energy companies. Enjoy the same freedom that 50,000+ customers have with their own solar power system.

Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

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Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Be Smart, Buy From an Authorized Dealer

When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.

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