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Avatar for Southern Power Systems, LLC
Southern Power Systems, LLC
4.9(
86
)
Fixed Generator - InstallFixed Generator - Repair

Serving Norcross, GA and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Randy Hamrick(owner) was very thorough answering my questions and follow up. The installation crew was pleasant and efficient. Generator installation was completed on the date promised."
Generator Installation
Generator Installation
Generator Installation
Generator Installation
Generator Installation

+2

Response time2 days
78 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for M.J. Power LLC
M.J. Power LLC
5.0(
18
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Norcross, GA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

With over a decade of experience, we offer licensed and fully insured electrical services that prioritize both expertise and reliability. We ensure the highest standards of craftsmanship, delivering top-quality workmanship in every project we undertake. Clients can rest assured knowing that their electrical needs are in capable hands, providing them with peace of mind and confidence in the safety and efficiency of their electrical systems.

19 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Britebox Electrical Services
Britebox Electrical Services
4.5(
43
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Norcross, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Customers say: Super punctual

"Three light fixtures installed to existing wiring, less than an hour to survey work, perform task, and do paperwork...$387...Really surprised my elderly parents and me...Just found out through this experience, they have taken over the electrical for Ragsdale Heating and Air, liked it better when Ragsdale did their own electrical...So buyer beware when dealing with this company."
Response time1 day
7 neighbors recently requested a quote
Recommended by58%of homeowners
J & K Electrical Contractors, LLC
4.6(
12
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Norcross, GA and surrounding areas

Approved

In business since 1996

Free estimates

Credit card accepted

"We hired them last year to install a motion detector over our garage and to disconnect an outdoor junction box and wiring used by the previous owner. They did a great job and were very courteous. They were very responsive to our request and scheduled the appointment for the next day."
Response time2 days
Recommended by90%of homeowners
Avatar for Dependable Electric Service, LLC
Dependable Electric Service, LLC
4.4(
415
)
Portable Generator - Install

Serving Norcross, GA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Came in, got straight to work. Lights looked amazing. Only problem was they wouldn’t patch 2 small holes from removing old fixture. I took care of it no problem but it would be common courtesy to take care of that for your customer. Other than that, honestly the guys were extremely professional. He wanted to make sure my lights lined up with existing fixtures so in an event I ever changed it, it could match and looked uniformed to the ones installed. I’d definitely use them again for sure."
Panel Change out
Detached Bar from House
Auto Transfer Panel for Back up generator
Movie Theater
Movie Theater

+62

Response time5 hrs
Response rate92%
1 neighbors recently requested a quote
Avatar for TE Certified, Electrical, Plumbing, Heating & Cooling
TE Certified, Electrical, Plumbing, Heating & Cooling
4.7(
129
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Norcross, GA and surrounding areas

Approved

In business since 2003

Small jobs welcome

Credit card accepted

"We hired TE to install an outlet under our kitchen sink. I was worried there might be complications with the counter and cabinets in the way but everything went smoothly and Kyle did a great job with the outlet! I would hire them again for any additional electrical work we needed."
Recessed Lights
Chandelier
TE Electrician
Kitchen Lights
Pendant Lights

+5

13 neighbors recently requested a quote
Recommended by92%of homeowners
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Generator Install questions, answered by experts

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.

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.

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

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

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 Norcross, GA homeowners’ guide to generator installs

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