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Avatar for Invictus Electric Service Company, LLC
Invictus Electric Service Company, LLC
4.7(
25
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Bellevue, TN and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"David has done several jobs for us and we have been really happy with his work and would recommend him. He did all the electrical work on a new garage we built, this was a big job. He pulled the permits, ran a new line, installed a new panel, installed lighting and switches. He also completed the wiring and lighting for a remodel we did. Would hire him again, he’s nice guy and does good work."
Electrical Project
Electric Vehicle Charger Install
Electric Vehicle Charger Install
Electrical Project
Electrical Project

+63

Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Top Notch Electrical Group llc
Top Notch Electrical Group llc
5.0(
5
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+1 more

Serving Bellevue, TN and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Hired him to install a tandem 20 amp breaker and a 20 amp outlet in my garage. He showed up on time with all necessary tools and equipment, the job was completed in a timely manner and his price was the best I had quoted. He was very polite and professional and did an outstanding job on the install,by far the best electrician I have hired so far. I would highly recommend him to anyone needing some electrical work done for a fair price Top Notch is your choice. I will be using them in the future for all my electrical needs."
New panel upgrade
30 neighbors recently requested a quote
Avatar for Sensible Home Services LLC
Sensible Home Services LLC
5.0(
16
)
Portable Generator - Install

Serving Bellevue, TN and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Michael and his team were professionals and solved our electrical issues quickly and affordably. They were kind and trustworthy. I'll be certain, hands down, to call them when I need any electrical services performed in the future!! I'd recommend them to my friends! If anyone is looking for an experienced, knowledgeable, friendly, kind, and trustworthy team...call them right away, you'll be satisfied with the results and your experience!"
Lighting Upgrade
Lighting Upgrade
Lighting Upgrade
Lighting Upgrade
Lighting Upgrade

+19

Avatar for Rapid Response Plumbing Heating and Cooling
Rapid Response Plumbing Heating and Cooling
4.7(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Bellevue, TN and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"This is the 2nd house I have had Robert install an entire AC/Heater Unit in. This last unit was a 5 ton that lasted me almost 18 years - When talking w/ Robert he wanted to ensure that the size of the existing unit was accurate prior to replacement. He came over in his off time just to double check the ceiling heights and sq. footage and confirmed that we were good to go. I appreciated that level of detail versus other companies that would just "punch in an order" and worry about it later. He will not try and sell you on things you dont want or need and was great to work with to try and save me a few bucks. I remember the first house he installed an AC/Heating unit in, he said "I live in this town and will definitely see my customers in the same grocery store and restaurants and dont want people to have anything other than a positive experience doing business with me". That always stuck with me and I am happy to give him the business."
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Install HVAC unit
8 neighbors recently requested a quote
Recommended by83%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.

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. 

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

The Bellevue, TN homeowners’ guide to generator installs

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