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Avatar for MidSouth Electric, Inc.
MidSouth Electric, Inc.
4.4(
15
)

Serving Centerville, TN and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"They were good and on time even if they located a bit far, they were prompt, their communication is really good, flexible and they are meeting my needs and the job. It was worth it."
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+1

Response time1 day
4 neighbors recently requested a quote
Recommended by84%of homeowners
Generx Generators
New to Angi

Serving Centerville, TN and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

GenerX provides residential homeowners and businesses with all their standby electric power solutions. We sell, install, service, and maintain Generac generators. We are a certified Generac Premier Dealer. In order to meet this qualification, Generac requires that you have a large inventory of new generators and parts, employ at least eight factory trained technicians, and maintain a minimum customer satisfaction rate of 92%. GenerX exceeds all of Generac's criteria and has received an abundance of Generac awards for sales, service, and installation.

Avatar for Rolando electrician
Rolando electrician
New to Angi

Serving Centerville, TN and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

I have extensive experience as a residential, commercial, and industrial electrician, specializing in new installations, remodeling, electrical system diagnostics, and repairs. I guarantee honest, responsible, and professional work.

Avatar for Premier Generators
Premier Generators
5.0(
5
)

Serving Centerville, TN and surrounding areas

In business since 1974

Free estimates

Emergency services offered

Power outages don't have to disrupt your life. Founded in 1994, Premier Generators has been the Southeast's trusted Generac dealer for over 30 years. As a top Generac partner trusted by thousands of homeowners, we deliver factory-certified home standby generator installations that provide reliable safety and security when you need it most.\n\nOur certified technicians bring unparalleled service quality, ensuring your generator automatically kicks in during outages to keep your home powered. Whether you need whole-home backup or essential systems coverage, we tailor power solutions to your specific needs using natural gas or propane systems.\n\nWhat started as a commitment to providing reliable backup power solutions has grown into the region's leading authority in home standby generator sales and installations. Choose Premier Generators for dedicated satisfaction, certified excellence, and peace of mind that your family stays comfortable and secure no matter what.

Avatar for Greenway Electric Service Company
Greenway Electric Service Company
4.7(
36
)

Serving Centerville, TN and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"CJ did a perfect job installing my ceiling light. He was very knowledgeable and did a great job. The appt had to be rescheduled and he texted me immediately to reschedule and kept me informed which I so appreciated. Also, as an added benefit his prices are very good. I will hire him for future jobs."
Chateau west
Chateau west
an outlet a client wanted in specific location
Outlet install for a mounted tv
240v Commercial grade patio heaters

+2

Response time5 hrs
Recommended by90%of homeowners
Avatar for Front Porch Electrical Services LLC
Front Porch Electrical Services LLC
5.0(
12
)

Serving Centerville, TN and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"I could not have asked for better service and work from Front Porch Electrical. I had a subpanel, some outlets and an exterior light installed in my garage. Very pleased with the results. Work was done exactly as quoted, on time and within budget. Excellent service, friendly, honest and probably the best prices in the area. You won't be unhappy hiring this company!"
Response time8 hrs
Response rate91%
1 neighbors recently requested a quote
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Generator Install questions, answered by experts

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

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.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

The Centerville, TN homeowners’ guide to generator installs

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