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Avatar for Harrison Electric, Inc.
Harrison Electric, Inc.
4.6(
435
)
Portable Generator - Install

Serving Sunfish Lake, MN and surrounding areas

Approved

In business since 1985

Emergency services offered

Credit card accepted

"Kevin was great! He was on time and took the time and effort in explaining all the electrical stuff we needed to do around the house. His attention to detail was amazing! We needed to install hanging lights above our dining table and add outdoor lights to our garage. He was meticulous and precise and explained everything well. It was cost effective and quick! 100% recommend Harrison and will hire them again"
Additional Photos
Additional Photos
Response time9 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Aquarius Home Services
Aquarius Home Services
4.6(
260
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Sunfish Lake, MN and surrounding areas

Approved

Super Service Award Winner

In business since 1987

Free estimates

Emergency services offered

"We had a humidifier installed. They installed it quickly and professionally. The installer Jimmy was very helpful and even gave me a couple pointers in regards to installing a wifi thermostat. I've always had great experiences with Kath/Aquarius home services and will definitely use them again."
Additional Photos
Additional Photos
Additional Photos
Our Team
Response time12 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Hero Plumbing, Heating Cooling and Electrical
Hero Plumbing, Heating Cooling and Electrical
4.3(
805
)
Fixed Generator - InstallPortable Generator - Install

Serving Sunfish Lake, MN and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"We needed an outlet and light + switch installed for our radon system. While the cost was a bit more than we were hoping, the person that came out had it done within 2 hours and its one less thing on our to do list! I also appreciate that Hero does not charge a trip fee like one of the other companies I had come give a quote."
Team Meeting
Working Hard
Hug a Hero
Here to help
Hero Coming Soon

+9

Response time11 hrs
64 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Kilowatt Electric, LLC
Kilowatt Electric, LLC
4.9(
15
)
Fixed Generator - Install

Serving Sunfish Lake, MN and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"Friendly neat and professional. Prompt service to install EV charging station. Did not try to sell more service than we wanted! (Did not shop around so canâ t speak to value.)"
Panel replacement
Panel replacement
Living room lighting
Response time11 hrs
Response rate90%
Recommended by93%of homeowners
Avatar for Hyperion Electric, LLC
Hyperion Electric, LLC
5.0(
10
)
Portable Generator - InstallPortable Generator - Repair

Serving Sunfish Lake, MN and surrounding areas

In business since 2021

Free estimates

Emergency services offered

Hyperion Electric LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Hyperion Electric LLC is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

Lighting update
Entry Disc lights
Living room fan and disc lights
Kitchen lighting
Exterior Lighting

+42

Response time1 day
Recommended by100%of homeowners
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Generator Install questions, answered by experts

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.

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

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, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

The Sunfish Lake, MN homeowners’ guide to generator installs

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