Can a natural gas generator work without electricity or in a power outage?

• <div><p>Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a <a href="https://www.angi.com/articles/cost-install-generator-transfer-switch.htm?entry_point_id=33797025">transfer switch</a> (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.</p></div>

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Q: What is the life expectancy of a whole house generator?

• <div><p>Whole-house generators can last<b> 20 to 40 years</b> with normal operation and proper maintenance. If you look up the specifications for your generator, you may be able to find a lifespan rated in hours of operation. Life expectancy will vary depending on how often and for how long you use the generator each year. Choosing a fuel with low impact like natural gas or diesel can help generators last as long as possible.</p></div>

Q: What size generator do I need for a 2,500-square-foot house?

• <div><p>A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.</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>

Q: Do you need a permit to install a whole-house generator?

• <div><p>In many cases, you&rsquo;ll need a permit or basic inspection to install one of these large generators. Since they include significant alterations to your home electrical system and many produce exhaust fumes, local governments often require jumping through a few hoops for general safety purposes. Your installer may be able to help you with these permits.</p></div>

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Verified Reviews for Generator Install pros in Saint Peter, MN

*The Angi rating for Generator Install companies in Saint Peter, MN 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 Saint Peter, MN 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 October 28, 2025

Reviewed in June 2025
The salesperson was great. The installers were kind and polite. Most important, the windows are fantastic!
Window Concepts of Minnesota Inc
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Reviewed in April 2018
Called Prange out of Madison Lake, MN and scheduled to have them come for a spring tune up/cleaning. Date was set and a general time of day was set (early afternoon). After taking half a day of vacation for a date and time they set, they never showed up. They didn't respond to emails or phone...
Prange's Heating & Air Conditioning Inc
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Reviewed in April 2017
It went great! Installation was quick and affordable!
ECS (Electrical & Communication Specialists, Inc)
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Reviewed in January 2017
It went well. Although we have not seen the new system in action as we are in winter, but the install staff was awesome, efficient and clean.
Complete Basement Systems
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Reviewed in October 2016
We recently had some very heavy rains and as a result of a shoddy installation, we had a considerable amount of water in our basement. The water was about 3 inches deep and ruined the composite flooring and a section of the wall. It was not the window itself that leaked but the result of the...
Your Home Improvement Company, LLC
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Reviewed in August 2016
Install went great, they worked with us to get the a/c replaced (at our request) prior to the full furnace install, but followed up immediately within the next couple days to complete the rest of the installation. Couple notes: emailed questions and received complete and timely answers. Quotes...
WASKO HEATING & COOLING
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Reviewed in December 2013
Gene's has been doing all of our Audi repair for the last 6 years. This past July they replaced the window regulator in our S4. This is a common issues after a few years. The middle of December the window failed again, even though the normal warranty on repair parts is 90 days, Kip provided...
GENE'S REPAIR
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Reviewed in May 2013
Service was for apartment we own. When I call Roger and Steve, I give them phone numbers for our tenants. They contact tenants to set up service time, and take care of any problems we incur. Then, they send us a bill. Their services are very reasonable, and they can generally take care of...
Jerry's Plumbing Service
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Reviewed in November 2012
After months of prodding they finallyagreed to replace our faucet as prescribed in the original warranty with "only" an installation fee. Our installation fee was $380.67. Buyer beware!
Paul's Plumbing And Heating
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Reviewed in May 2012
He was really very good in that he didn't take advantage of me, which he could have; he could have made money himself instead of telling me to just hire a plumber for the job I needed done. He was very punctual and professional; he was here when he said he would be. He was all around a really...
John Hurd Construction
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Find Generator install pros in Saint Peter

Jay's Outdoor Equipment and Repair

901 South Victory Dr.

4.50(

)

Jay's Outdoor Equipment and Repair

901 South Victory Dr.

4.50(

)

Customers say: Quick response

Recommended by 100% of Angi customers

We accept cash, check, and major credit cards.

My Classic Car Trader LLC

312 Prospect Ave

2.00(

)

My Classic Car Trader LLC

312 Prospect Ave

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

Generator Install questions, answered by experts

Whole-house generators can last 20 to 40 years with normal operation and proper maintenance. If you look up the specifications for your generator, you may be able to find a lifespan rated in hours of operation. Life expectancy will vary depending on how often and for how long you use the generator each year. Choosing a fuel with low impact like natural gas or diesel can help generators last as long as possible.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

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.

In many cases, you’ll need a permit or basic inspection to install one of these large generators. Since they include significant alterations to your home electrical system and many produce exhaust fumes, local governments often require jumping through a few hoops for general safety purposes. Your installer may be able to help you with these permits.

The Saint Peter, MN 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

Alison Kasch
•
Feb 10, 2025Feb 10, 2025
How Much Does It Cost To Install a Generator Transfer Switch? [2025 Data]
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
Breyden Kellam
•
Aug 14, 2025Aug 14, 2025
How Much Does Whole-House Generator Maintenance Cost? [2025 Data]
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.
Elisa Greenberg
•
Aug 14, 2025Aug 14, 2025
How Much Does a Whole-House Generator Cost? [2025 Data]
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
Michelle Nati
•
Apr 1, 2025Apr 1, 2025
Can a Whole-House Generator Run an Air Conditioner?
A whole house generator can keep your home running during a power outage, but can it handle the energy demands of an air conditioner? Here’s what to consider.
Jenna Jonaitis
•
Feb 14, 2025Feb 14, 2025
6 Questions to Ask About Installing a Fixed Backup Generator
Before installing a fixed generator, think about your use and space. Review these backup generator questions to prepare for a talk with your contractor.
Tyler Lacoma
•
Apr 1, 2025Apr 1, 2025
Diesel Generator Maintenance Services: 10 Steps to Know
Diesel remains a popular fuel option for a variety of home generators, but you will need to plan your maintenance carefully. Here’s how it works.