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Powerhouse Electric & Generators
4.8(
16
)
Fixed Generator - InstallFixed Generator - Repair

Serving Mount Holly, NC and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

Welcome to Powerhouse Electric & Generators! 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

1 neighbors recently requested a quote
Recommended by53%of homeowners
Avatar for Mr. Electric of Gastonia
Mr. Electric of Gastonia
4.8(
62
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Mount Holly, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"I am very pleased with the service I received from Mr. Electric of Gastonia. Daniel and Matt explained all the issues with the old panel and I decided to have it replaced along with a whole house serge protector. While they were here they kept me informed of what they were doing and how the job was progressing and when they were done they cleaned up. Daniel and Matt were always on time and they called ahead when they were on their way. Brian set up my appointment times and scheduled me for the electrical inspection so I didn't have to do any of that. The inspector was here this morning and told me that it was really nice to see good quality electrical work. I would not hesitate to refer them to family and friends, I am happy with the job they did for me."
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+89

3 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Walker Electrical Services
Walker Electrical Services
5.0(
11
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Mount Holly, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Drew, the owner of Walker Electric was the technician that actually showed up to do the work. I had him install a ceiling exhaust fan in my bathroom. He did excellent work replacing the old one with new and didn’t do any unnecessary drywall damage. I also had Drew install under cabinet strip lighting in my kitchen that came out looking wonderful. His pricing was more than reasonable and his quality of work was top notch. I would recommend Walker Electric for any of your electrical needs and I will absolutely be using them again in the future!"
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+12

Response time8 hrs
Response rate95%
Recommended by9%of homeowners
Smart Power Source, Inc.
4.6(
11
)
Fixed Generator - Install

Serving Mount Holly, NC and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"I had been reaching out to other vendors and had a hard time getting a call back. Jason got back to me quickly and answered every question and concernI had about generators and installation. His crew were nice, quick and tidy! Well organized and detailed work! Thank you!"
Response time10 mins
Response rate88%
Recommended by90%of homeowners
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Generator Install questions, answered by experts

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.

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still 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 Mount Holly, NC homeowners’ guide to generator installs

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