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Avatar for OneWay Electrical, LLC
OneWay Electrical, LLC
4.8(
96
)
Portable Generator - Install

Serving Chapin, SC and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Carlton and Tony were extremely professional and knowledgeable. They diagnosed the problem immediately and found where the electrical problem occurred, and why it occurred. They fixed the electrical issue immediately and recommended new GFCIs be installed. They were both great and very friendly, explaining why the outlets were wired in the circuit in the layout of the area in the house. I would whole heartily recommend this company and these two gentlemen for any electrical work."
Response time1 day
Recommended by100%of homeowners
Avatar for PALMETTO ELECTRIC GROUP LLC
PALMETTO ELECTRIC GROUP LLC
5.0(
7
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Chapin, SC and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

At Palmetto Electric Group, we are your trusted local electricians dedicated to providing top-notch electrical services for both residential and commercial needs. With years of experience and a commitment to safety, our skilled team specializes in everything from installations and upgrades to repairs and maintenance. Whether you need lighting solutions, panel upgrades, or emergency services, we ensure reliable and efficient work tailored to your specific requirements. Customer satisfaction is our priority, and we pride ourselves on our professionalism and attention to detail. Let us brighten your space and power your home or business safely and effectively! Contact us today for a free estimate!

7 neighbors recently requested a quote
Avatar for Mr. Electric of Columbia
Mr. Electric of Columbia
4.4(
87
)
Fixed Generator - Install

Serving Chapin, SC and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"on time with rinders and on way call. stayed on task but pleasant and answered amy question. consulted about chpices, notifiede in advance if part had to be ordered, offered me choices and advice, totally professional and charming. Felt so at ease. switchboard Amy just as great. So good, I looking at hiring their sister company on plumbing, Rooter. it is always a "blind date" on hiring by phone, but this was a "dream daye." Highly recommend."
High Ceiling
Post Light Fixture
Outlet Above Fireplace
Surge Protection
Surge Protection

+20

Response time1 day
18 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Cagen Electric, LLC
Cagen Electric, LLC
4.7(
6
)
Fixed Generator - InstallPortable Generator - Install

Serving Chapin, SC and surrounding areas

In business since 2025

Free estimates

Credit card accepted

"Cagen Electric was very professional, reliable, and trustworthy. Job was completed in a timely manner. Spencer explained thoroughly what was needed and the best product for our home. Also had Cagen Electric install spots. Highly recommend this company."
Response time6 hrs
3 neighbors recently requested a quote
Avatar for THE LEGACY ELECTRIC SERVICES OF THE UPSTATE INC
THE LEGACY ELECTRIC SERVICES OF THE UPSTATE INC
5.0(
2
)
Fixed Generator - Install

Serving Chapin, SC and surrounding areas

In business since 2024

Free estimates

Credit card accepted

We offer over 30 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

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+7

Response time10 mins
Response rate100%
Recommended by100%of homeowners
Showing 1-10 of 26
Generator Install questions, answered by experts

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. 

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. 

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

The Chapin, SC homeowners’ guide to generator installs

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