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Avatar for Holistiq Building Systems and Services LLC
Holistiq Building Systems and Services LLC
5.0(
8
)
Fixed Generator - Install

Serving Catawba, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"I would like to recommend Joshua Smith as a Tesla installer and overall electrician. He did a great job for my wife and I on the installation of our powerwall 3 and car chargers within our garages as well as trouble shooting some other electrical problems at our new home at Smith Mountain Lake. Additionally, he answers phone calls and shows up on time. Again, we highly recommend Joshua."
Response time5 hrs
12 neighbors recently requested a quote
Avatar for Bobcat Electric LLC
Bobcat Electric LLC
5.0(
5
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Catawba, VA and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

We are dedicated to providing our clients with the very best in service, installation, and repair for all phases of your electrical needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We also offer complete Gas Service, including generators, gas stoves & water heaters. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

11 neighbors recently requested a quote
Avatar for Murray & Sons Electrical
Murray & Sons Electrical
4.8(
205
)
Portable Generator - Install

Serving Catawba, VA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"They were very professional,and took great care in making sure the job was done to my satisfaction. They did all the installation,and then explained how it all worked. I would recommend this company to anyone that wants a generator installed. The price was also very reasonable. Would call them again for any electrical needs."
Response time12 hrs
Response rate91%
Recommended by98%of homeowners
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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. 

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

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 Catawba, VA homeowners’ guide to generator installs

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