Reliable Generator Installation for Whole-Home Backup Power

A whole-home generator in Portland, OR is no longer just a luxury, especially with the extreme weather global warming has been causing. Therefore, if you want to protect your family from the dangers of extreme heat and cold, a whole-home generator is just what you need. A household generator will help you live and function normally when the power goes out for any amount of time, so you don’t skip a beat.

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When an emergency strikes and your comfort is compromised, Wolfer’s is ready to answer the call.

What Is a Whole-Home Generator?

A whole-home generator, also known as a standby generator, is a stationary fixture that is connected to your home. Your household generator is connected to your home’s electrical system and a fuel source like a propane tank or natural gas line.

How Does a Whole-Home Generator Work?

When the power goes out, your household generator will automatically kick in and supply your home with electricity. Here are the components associated with a whole-home generator.

Fuel Supply – This feeds fuel to the generator’s engine to start and run your whole-home generator during a power outage.

Generator Engine – This is a battery-powered motor used to start and run the engine which then uses a rotor shaft located inside the generator to produce electricity.

Generator – A rotor shaft is located inside the generator and will spin an armature core within a magnetic field to convert the energy that is produced from the spinning shaft into electricity. That electricity is then supplied to your home.

Generator Controller – When the system’s transfer switch detects a power outage, it sends a signal to the generator controller. Next, the controller starts the engine and prepares it to supply your house with electricity. The controller then sends a signal to the transfer switch to connect the power from the generator to your home’s electrical system.

Permanent Wiring and Transfer Switch – The permanent wiring is what joins the generator output to the automatic transfer switch. The transfer switch is what monitors your home’s power and sends a signal to the generator controller when the power goes out. The transfer switch will then connect the backup generator power to your home’s electrical system. The transfer switch is also the part that will restore your power from the utility company when the power comes back on.

Whole-Home Generator Capacity Overview

Whole-home generators are rated by the number of watts they can produce. One kilowatt (kW) equals 1000 watts. To put things in perspective, it takes about 1200 watts to run a microwave, a typical portable device will generally use anywhere between 2 kW and 4 kW, and it takes about 60 watts to power a lightbulb.

So the more devices you want to power, the bigger the generator you will need. On average, whole-home generators need about 20 kW to power your entire house, if the furnace is natural gas.

Whole-Home Surge Protection

A whole home surge protection rated above 50 KVA’s is extremely important. The surge is installed in the home’s electrical panel to protect the home, both on utility and generator power.

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For over 125 years, we’ve proudly served Northwest Oregon, Southwest Washington, and surrounding areas with trusted heating, air conditioning, plumbing, and electrical services.

Schedule a Whole-Home Generator Consultation in Portland, OR Today

If you want more information about installing a household generator with surge protection, please Contact Wolfer’s Home Services to schedule a consultation today. We are the best in the business, offer competitive rates, and have a 100% satisfaction guarantee. Our service area includes Portland, Salem, Tigard, and the surrounding areas.

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Review Highlights
Customers consistently praise the team's professionalism, expertise, and genuine care in explaining their work—from thorough system inspections and clear communication about findings to taking time to educate homeowners and answer all their questions. The technicians are recognized for their promptness, efficiency, and honest approach, making recommendations based on actual needs rather than pushing unnecessary work, and they handle both HVAC and plumbing services with meticulous attention to detail. Year after year, customers return for the friendly, respectful demeanor of the staff and their commitment to delivering same-day solutions and peace of mind.

Based on 7,337+ Reviews

Christian and Will did an excellent job.
jeff schulzke
2 days ago
Brandon was great - arrived on time, explained everything he was doing, cleaned up before leaving and did a great job!
Shelby Palmer
2 days ago
Arturo came several weeks ago to perform routine maintenance on our mini split. He found an issue and promptly diagnosed and repaired the problem. Thank you Arturo and Wolfer's.
tod ginsbach
2 days ago
Edgar is knowledgeable and thorough.
Kathryn L Miller
3 days ago
Paul was a very pleasant man to work with. Very knowledgeable, thorough, explained everything to where I was able to understand
Ann Buhr
3 days ago
Rick and Saia were great. Very personable, knowledgeable, and thorough. While it took some time to identify the faulty component, they stuck with it. A replacement part was ordered, installed and thoroughly tested. I appreciate the way sales & service worked together to resolve the issue.
Erik Halverson
3 days ago
Friendly and knowledgeable technicians provided professional plumbing services.
Thomas Dieterich
4 days ago
Tito Outstanding! Very complete in his work, did more than any other service man I have had from Wolfers and had a great attitude. Thanks for sending him.
Dennis Nielson
4 days ago

    Unbeatable Heating, Air Conditioning, Plumbing & Electrical Services

    From everyday repairs to major home comfort upgrades, Wolfer’s Home Services is ready to help. Our experienced technicians provide dependable HVAC, plumbing, and electrical solutions backed by more than 125 years of service and our commitment to five-star customer care.