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Verified Reviews for Generator Install pros in Willmar, MN

*The Angi rating for Generator Install companies in Willmar, 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 Willmar, 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 April 13, 2025

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Avatar for Trapper Electric
Trapper Electric
4.4(
14
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Willmar, MN and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"They did a good job in a timely fashion. There are a few loose screws. Other than that. The quality is good."
New 200 amp
31 neighbors recently requested a quote
Recommended by84%of homeowners
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Mitlyng Electric & Refrigeration
3.0(
2
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Willmar, MN and surrounding areas

In business since 1984

Free estimates

Emergency services offered

"I had two sets of LED lights that were working, but not to their full power. Cameron came over, tested the wattage, tested everything that he could, and basically explain that I needed new fixtures. In that same period of time, he also checked on another fixture upstairs that we wanted replaced, but were unsure of how long it would take or what the cost would be. He was extremely kind in explaining all of his work and that the consult for this visit would be included in the billing of the next visit as he unable to resolve the problem in the first trip. The next time Cameron came, it took him hardly anytime to get all three fixtures put in. I am extremely impressed with his efficiency, communication, and attention to detail in his work. He is a meticulous and mindful person, and is very skilled in his craft. I will definitely be recommending this electrical company to friends and family, as I feel very confident in their work."
Completed Panel
In progress wiring
Furnace
Furnace Wires Chewed
Response time5 hrs
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Generator Install questions, answered by experts

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

The Willmar, MN homeowners’ guide to generator installs

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

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