What size generator do I need for my house?

• <div><p><a href="https://www.angi.com/articles/what-size-generator-do-i-need.htm">Generator size requirements</a> vary wildly among properties, but typical generator sizes are listed below based on home square footage:</p><ul><li><p>1,000 sq ft: 6–9 kW</p></li><li><p>1,500 sq ft: 7–10 kW</p></li><li><p>2,000 sq ft: 10–14kW</p></li><li><p>2,500 sq ft: 12–16kW</p></li><li><p>3,000 sq ft: 16–20kW+</p></li></ul><p>Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.</p></div>

Get matched with top generator install pros in Mullen, NE

Q: What are the disadvantages of a standby generator?

• <div><p>While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.</p></div>

Q: Can I use a generator to charge a back-up battery?

• <div><p>Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.</p></div>

Q: Can a portable generator power an entire home?

• <div><p>A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a <a href="https://www.angi.com/articles/installing-whole-house-generator.htm">whole-home generator</a> instead. </p></div>

Q: How much does it cost to install a whole-house generator?

• <div><p>The <a href="https://www.angi.com/articles/how-much-does-it-cost-install-generator.htm">cost to install a whole-house generator</a> averages at <b>$5,200</b>, but costs can range from <b>$1,500 to $8,900,</b> depending on the type and size of the generator, and the labor required to install it. To find the best deal while still ensuring the unit meets all the needs of your household, hire an electrician to calculate the electrical load of your must-have appliances and electronics beforehand so you don&rsquo;t pay for more power than you need. As always, be sure to get at least three quotes to find the ideal fit for your needs and budget.</p></div>

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Verified Reviews for Generator Install pros in Mullen, NE

*The Angi rating for Generator Install companies in Mullen, NE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Mullen, NE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on November 20, 2025

Reviewed in October 2025
Walkout garage door was replaced and painted. Broken handle on glass storm door was replaced. New tv was installed on retractable mount and new soundbar was installed. Very satisfied with all repairs and installations. Workers were very professional and left the areas clean and tidy.
House Doctors Northwest Omaha
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Reviewed in January 2024
The installers were courteous and great to work with. We had over 30 windows installed, which obviously took some time. It was obvious towards the end that they were getting pressure from the top to get done. There were some issues with our new patio door that did not get completed correctly....
J-Tech Construction
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Reviewed in March 2023
Well, so far, I am very happy installation was fast. It was done well that it appears to me and the price I thought was reasonable and the information that I was given by the installer was very helpful. He was very knowledgeable and covered all of my concernsâ ¦ I would highly recommend them!
Dog Guard
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Reviewed in November 2013
First, the guys that came over to our place were professional and courteous. Dean was the main salesman. The first thing they did was to ask me what I wanted to change in my home in regards to comfort. I appreciated that as they actually cared about the things that I saw as problematic. They...
Thermal Services Inc
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Reviewed in July 2013
Now our original gas line installer is supposed to move the gas line to where we want. I apologize for the inconvenience, our contractor is getting the installer to move it to the desired location. Your pro was great and I would recommend him to anyone.
Plumbing Specialties
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Reviewed in July 2013
Clayton showed up 30 min early. I had told them that I would be home all day so they could come early if possible. He quickly diagnosed the problem, explained it to me and told me the cost to fix it. He indicated that it was a part he had in his van and could fix it right away. I agreed to...
Andy's Appliance Repair
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Reviewed in April 2012
This company sent out canvousers, and we called them for new windows and patio door. We where lied to from the start. The y claim you save 50% on energy bills, they qualify under the Nebraska Energy Assistance Program and the all your windows and doors that are custom built will be installed...
American Exteriors
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Reviewed in February 2010
McEwen Construction contracted Neeman and sons. A report will be filed for both of these companies. This one is for Neemann and sons the original roofing contractor. On 2/28/2006 we (I and my daughter and her then fiancé) contracted with Ryan McEwen of McEwen Construction to be the general...
Neemann and Sons, Inc.
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Reviewed in February 2010
A similar report is being filed against the roofer, Neemann and Son's On 2/28/2006 we (I and my daughter and her then fiancé) contracted with Ryan McEwen of McEwen Construction to be the general contractor in charge of constructing two homes who’s frames were constructed by Yankee Barn Homes...
McEwen Construction
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Find Generator install pros in Mullen

My Classic Car Trader LLC

2.00(

)

My Classic Car Trader LLC

2.00(

)

53 years of experience

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

LIGHTHOUSE ELECTRICAL CONTR

4.25(

)

LIGHTHOUSE ELECTRICAL CONTR

4.25(

)

Customers say: Terrific value

20 years of experience

Electrical Contracting company based out of Scottsbluff, Nebraska. We serve the Wyobraska area. We accept credit cards, check, and cash payments.

Generator Install questions, answered by experts

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

Generator size requirements vary wildly among properties, but typical generator sizes are listed below based on home square footage:

1,000 sq ft: 6–9 kW
1,500 sq ft: 7–10 kW
2,000 sq ft: 10–14kW
2,500 sq ft: 12–16kW
3,000 sq ft: 16–20kW+

Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

The cost to install a whole-house generator averages at $5,200, but costs can range from $1,500 to $8,900, depending on the type and size of the generator, and the labor required to install it. To find the best deal while still ensuring the unit meets all the needs of your household, hire an electrician to calculate the electrical load of your must-have appliances and electronics beforehand so you don’t pay for more power than you need. As always, be sure to get at least three quotes to find the ideal fit for your needs and budget.

The Mullen, NE homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Elisa Greenberg
•
Aug 14, 2025Aug 14, 2025
How Much Does a Whole-House Generator Cost? [2025 Data]
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Keeping on top of generator maintenance and repairs gives you extra peace of mind as a homeowner. Find out how much regular generator maintenance costs.
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•
Mar 11, 2025Mar 11, 2025
How Long Can a Whole-House Generator Run Continuously?
The type of generator and its fuel source can make the difference between whether it provides temporary relief of long-term comfort. Find out how long a whole house generator can run continuously.
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•
Mar 14, 2025Mar 14, 2025
Propane vs. Natural Gas Generator: What’s the Difference?
Struggling to choose the best generator for your electricity needs? Compare propane vs. natural gas generators to help you make the right choice.
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Mar 26, 2025Mar 26, 2025
Pros and Cons of a Whole-House Generator
Whole house generators can power homes when electric problems hit, but they aren’t for everyone. Here’s what you should know when you’re thinking about buying.