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Avatar for On-Site Generator Services, LLC
On-Site Generator Services, LLC
4.9(
10
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business

Serving Lyman, MS and surrounding areas

Approved

In business since 2020

Credit card accepted

Offers commercial services

"Jessie was a professional in all aspects... My RV Generator was fixed and Jessie not only fixed the problem...he explained to me what he was doing....and I very much appreciated that.. I highly recommend On-Site Generator Services for any generator needs"
Response time5 hrs
12 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Chatman Electrical
Chatman Electrical
4.2(
5
)
Fixed Generator - Repair

Serving Lyman, MS and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I called Chatman Electric and within 30 Mins they pulled into my Drive way . I explained my problem and He went to work immediately and I paid exactly what was quoted. Will recommend to my family and friends !!!"
Response time2 days
Recommended by100%of homeowners
Hodas Generator & Electrical LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Lyman, 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.

12 neighbors recently requested a quote
Avatar for Watts Electric
Watts Electric
New to Angi
Fixed Generator - RepairFixed Generator - InstallGenerator - Install - For Business+1 more

Serving Lyman, MS and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

Welcome to Watts Electric! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!\n

Response time3 hrs
Response rate91%
3 neighbors recently requested a quote
Avatar for Livewire Electrical Solutions, LLC
Livewire Electrical Solutions, LLC
4.5(
125
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Lyman, MS and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"Jeff did a great job wiring up my whole house generator. He kept to his schedule and explained all his work hooking it up so I could understand what he was doing and how the generator would work. He was very prompt on showing up to do the work."
Kitchen Recessed Light addition
Holes cut and wire ran
lights installed
Power on
Recommended by99%of homeowners
Avatar for Beacon Power
Beacon Power
3.8(
27
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Lyman, MS and surrounding areas

In business since 1994

Free estimates

Credit card accepted

"Beacon came out, did an assessment and provided a quote for a generator based on my power consumption. They also provided recommendations based on my current setup ( pointed out things that were not up to code) and possible fix actions. Installation took 1 day and looked very professional. Follow up for the 1st year is part of the installation also. Overall, a great experience. Rated value a little lower simply because your paying a lot of money for something that may never be needed, but it's always nice to know it's there."
Response time1 day
Recommended by89%of homeowners
Avatar for Advanced Electrical Services Co.
Advanced Electrical Services Co.
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Lyman, MS and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Very well. I can already tell an improvement in the amount of heat that was being generated inside my home from the ceiling. Three attic fans were installed on the roof to replace three vents that just wasn't getting the job done. Thank you so much."
Recommended by100%of homeowners
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Generator Install questions, answered by experts

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

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.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

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.

The Lyman, MS homeowners’ guide to generator installs

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