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*The Angi rating for Generator Install companies in Granite Falls, 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 Granite Falls, 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 May 10, 2026

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Mitlyng Electric & Refrigeration
3.0(
2
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Granite Falls, 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

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

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.

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

The Granite Falls, 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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