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Avatar for Power House Electric LLC
Power House Electric LLC
5.0(
16
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Columbia, MS and surrounding areas

Approved

Free estimates

Credit card accepted

"The folks at this business are amazing! They came next day to provide a quote, and he told me me that he could do what I wanted for about 5K, but he could get the project completed going another route for only 2K. How many businesses do you know that would be so upfront about what is best for your pocket. They came the next day and got everything done and yay I have electricity in my new building. 😊💕😊"
Generator Install
Generator Install
RV Shed
Ceiling Fan Installation
Ceiling Fan Installation

+5

4 neighbors recently requested a quote
Peak Electrical Works
5.0(
3
)
Generator - Install - For BusinessGenerator - Repair - For BusinessPortable Generator - Install

Serving Columbia, MS and surrounding areas

Approved

In business since 2001

Offers commercial services

Customers say: Quick response

Peak Electrical Works, LLC is the place to call for all your electrical needs. I bring over 20 years of residential, commercial, and industrial experience to each project. I pride myself on neat, quality work that is always up to code. Reach out today!\n

Response time8 hrs
Recommended by100%of homeowners
Hodas Generator & Electrical LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Columbia, MS and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

22 neighbors recently requested a quote
Avatar for Beacon Power
Beacon Power
3.8(
27
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Columbia, MS and surrounding areas

In business since 1994

Free estimates

Credit card accepted

"If you want a system that will keep everything in your home or business running when the power goes down, Ron and the gang can take care of it. They coordinated the whole operation from a propane tank contract, generator rating, and even surge protection. The installers were very professional and their knowledge is outstanding and earned our respect."
Response time1 day
Recommended by89%of homeowners
Avatar for Mister Sparky
Mister Sparky
4.9(
10
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Columbia, MS and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"My family and I just purchased this home and had no idea where the GFCI was to control the outlets. Technician was going to trace the power on a later date but hearing him say it was controlled tripped at a GFCI that my wife and I couldn't find gave me the idea to look behind boxes in the garage that need to be unpacked still. Found it to be tripped and outlets work. Overall the company is very kind people over the phone and in person and if I had a problem that couldnt be fixed from GFCI I would definitely hire them again."
Generators
Panel Replacement
Relocate Wiring
Relocate switches
Relocate wiring

+4

Response time4 hrs
Response rate97%
Showing 1-10 of 40
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.

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.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

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.

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 Columbia, MS homeowners’ guide to generator installs

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