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Avatar for Nichols Electric
Nichols Electric
4.6(
75
)

Serving Represa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Emergency services offered

Warranties offered

"Nichols promptly replied to my needing an electrician and came right out and fixed my problem. The other companies I contacted did not even have the decency to return my calls or check on me. my house could have burned down! I will definitely call on Nichols again if I have a problem!!!"
Response time8 hrs
8 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Bodie Electric Inc
Bodie Electric Inc
5.0(
1
)

Serving Represa, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Hi there! My name is Jake and I am the owner of Bodie Electric. With over 15 years of electrical experience ranging from residential panel upgrades to $20M jobs at Levi’s Stadium and UC Davis; there is no job too big or too small! I specialize in Solar, Generators, Batteries, Panel Upgrades, and engineering for large scale projects. My goal is to be as many people’s electrician they can call for questions, help, pricing, and install. I am a single man crew that is licensed, bonded, and insured.

12 neighbors recently requested a quote
Fox Electrical Services, Inc.
5.0(
1
)

Serving Represa, CA and surrounding areas

Approved

In business since 2020

Free estimates

Offers commercial services

FOX ELECTRICAL SERVICES INC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

Response time11 hrs
Recommended by100%of homeowners
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Generator Install questions, answered by experts

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

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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. 

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

The Represa, CA homeowners’ guide to generator installs

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