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Avatar for Current Electric Company
Current Electric Company
4.7(
140
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Brown Deer, WI and surrounding areas

Approved

In business since 1983

Emergency services offered

Credit card accepted

"Dan (The Technician) and his Apprentice (Brody) were EXCELLENT) and would give them more than 5 STARS IF POSSIBLE! We have used Dan at Current Electric several times with difficult tasks but he seems to always find a way to get the project done! We had 3 lights installed today, had rewiring so they not exposed and got our projects done that we wanted for 2 years now THANK YOU SO MUCH! I would recommend them to anyone! Pat (Hartland, Wisconsin)"
Kitchen Remodel
Landscape Lighting
Restaurant Lighting
Lighting in newly built hotel
Commercial Solar

+2

Response time1 day
7 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Powerhouse, LLC
Powerhouse, LLC
5.0(
22
)
Generator - Install - For Business

Serving Brown Deer, WI and surrounding areas

Approved

In business since 2002

Free estimates

Offers commercial services

"Jim was very fast at coming to evaluate what we all needed to have done. He did a great job and cleaned up after he was finished. While he was here we had an issue come up for another electrical problem and he ordered the part and came back as soon as he got the part. Will definitely hire him again when we need electrical work."
Response time12 hrs
Recommended by95%of homeowners
Avatar for Freedom Electric, LLC
Freedom Electric, LLC
4.9(
8
)
Fixed Generator - InstallPortable Generator - Install

Serving Brown Deer, WI and surrounding areas

Approved

In business since 2021

Free estimates

Small jobs welcome

"Tony installed soffit lights in our home and garage. We couldnâ t be happier with the results. Work was performed with the utmost professionalism and courtesy. He even took the time to completely explain how to use an app to control the lights installed. We would highly recommend Freedom Electric."
Response time1 day
Response rate85%
Recommended by100%of homeowners
Avatar for Unstoppable Electric LLC
Unstoppable Electric LLC
5.0(
7
)
Fixed Generator - InstallFixed Generator - Repair

Serving Brown Deer, WI and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Unstoppable Electric LLC just installed our Tesla Wall Connector, and wow—what an incredible experience. They were super responsive from the first message, easy to schedule, and showed up right on time. Max is very knowledgeable, professional, and genuinely nice to talk to. He took his time to do everything perfectly—clean, precise, top-quality work with no rush whatsoever. Explained everything clearly, made smart suggestions, and left the garage looking flawless. Pricing was fair and transparent—no surprises. Definitely now my go-to electrician in the area! 10/10 recommend! Thanks again for the stellar work! ⚡️🚗"
Avatar for Milwaukee Electrical
Milwaukee Electrical
5.0(
2
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Brown Deer, WI and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Elliott does great work for a great price. He installed a new 100 amp breaker box and updated some of the house wiring to accommodate the new service. He also wired the newly renovated basement with all the wiring and installed all the outlets, switches and drop ceiling LED lights that have dimmer capability. He is meticulous in what he does."
Response time1 day
Recommended by100%of homeowners
Avatar for Ls industrial repair
Ls industrial repair
5.0(
2
)
Portable Generator - Repair

Serving Brown Deer, WI and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

"He showed up in a timely manner. He did the job quickly. There was a shorted wire that he had to re-run and pull through the existing pipe. So far it's all working great and has not needed to return. So far everything working great."
Avatar for Witty Property Solutions
Witty Property Solutions
5.0(
3
)
Portable Generator - Repair

Serving Brown Deer, WI and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

"We were very pleased with the caulking and painting work Alex recently did for us. The caulking work was near perfect, and the thorough prep work before painting was notable. He went out of his way to guarantee our satisfaction with our painting project. We have no reservations recommending Alex and would hire him again."
Tosa Kitchen Refresh
1 neighbors recently requested a quote
Avatar for SEIDER HEATING & AIR CONDITIONING INC
SEIDER HEATING & AIR CONDITIONING INC
5.0(
1
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Brown Deer, WI and surrounding areas

Approved

In business since 1912

Free estimates

Emergency services offered

"Absolutely commendable service. Extremely neat removal/ installation, fair price and clearly communicated hot water tank warranty information. Without a doubt, we will use Seider Heating, Plumbing and Electrical for any future needs. In a word this company is "outstanding"."
Water Heater Install
Mechanical Room
Basement Work
Water Manifold
Fixture Installations

+13

5 neighbors recently requested a quote
Showing 1-10 of 40
Generator Install questions, answered by experts

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.

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.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

If you’re deciding between a solar battery versus a generator for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don’t have many ongoing costs.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The Brown Deer, WI homeowners’ guide to generator installs

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