What size generator do I need for my house?

• <div><p><a href="https://www.angi.com/articles/what-size-generator-do-i-need.htm">Generator size requirements</a> vary wildly among properties, but typical generator sizes are listed below based on home square footage:</p><ul><li><p>1,000 sq ft: 6–9 kW</p></li><li><p>1,500 sq ft: 7–10 kW</p></li><li><p>2,000 sq ft: 10–14kW</p></li><li><p>2,500 sq ft: 12–16kW</p></li><li><p>3,000 sq ft: 16–20kW+</p></li></ul><p>Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.</p></div>

Can I plug my generator directly into my house?

• <div><p>No, you cannot plug a generator directly into a wall outlet in your home. Plugging in a generator without an interlocking kit, extension cord, or wall outlet receptacle is incredibly dangerous and can cause back-feeding—power from the generator back-feeds into utility lines. Also, if the main power comes back on while your generator is on, it could damage the generator and cause a house fire.</p></div>

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Q: Do I need a permit to install a generator?

• <div><p>In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between <b>$50 and $250</b>, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you&mdash;and might be required to do so by your building department&mdash;but you&rsquo;ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.</p></div>

Q: What’s the lifespan of a natural gas generator?

• <div><p>When properly maintained, natural gas generators can last a long time, as much as <b>20 to 40 years</b>. They have relatively few needs compared to generators with other fuel types. However, the generator&rsquo;s lifespan ultimately depends on how often the generator is used and for how long it&rsquo;s left running.</p></div>

Q: Can you use your electric car as a backup battery?

• <div><p>If you&rsquo;re wondering <a href="https://www.angi.com/articles/using-electric-car-as-home-generator.htm">if you can use your electric vehicle as a backup battery</a>, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.</p></div>

There are 3 highly-rated local generator install pros.

Verified Reviews for Generator Install pros in Rockwell, NC

*The Angi rating for Generator Install companies in Rockwell, NC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Rockwell, NC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on October 04, 2025

Reviewed in April 2024
They did an amazing job. Were polite and came on time and communicated well. They will be doing all electrical jobs we have moving forward! Will always use them!
Elite Power Solutions
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Reviewed in October 2014
He came in and I wanted to put a second electrical box put in and run a wire to plug a generator in so if we lost power I could go to the one box that had the essential things I wanted to run. That was basically the service and we talked it over and at that time I was not ready to invest in...
Roby Services
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Reviewed in May 2023
The project went very smoothly. Greg and his team were on top of their game. They did what they said they were going to do it, when they were going to do it...at a fair price. By far my most favorite electrical contractor to deal with. Look forward to using them again in the future. I have...
GB Electrical Services LLC
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Reviewed in February 2014
Great service! We moved into a new house just before Christmas. We called Mike for advice and help setting up a generator. I placed the call on New Year's Day, expecting to have to leave a message. Mike answered and came by our house within the hour for our initial consultation! He was really...
Mike's Electrical Services
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Reviewed in May 2022
The team from the office to the tech all the way to the head of the company was great. They came out and knocked out the projects I had lined up. They were very professional and cleaned up once they were done. I would definitely hire again!
Gowdy Electric
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Reviewed in September 2014
They came when they said they were going to come and did the repair. When I did the check, it was working perfectly.
Premium Power Systems Inc
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Reviewed in November 2014
They did a fantastic job and I would use them again. The generator has held up fine since they came out to do the work. They were out here about 2 hours. There were no issues with scheduling and I'd recommend them!
ARC Electric Company of Indian Trail NC Inc
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Reviewed in October 2014
Scotty came out and explained the system and options very clearly. The whole process was pretty much as Scotty explained it. I was very happy with the professionalism and accommodating nature of everyone that worked on my install. If I need them to schedule around my work schedule, they were...
Mister Sparky By Wise Electric Control Inc
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