Generator Installation in Portland, OR

4.8

Rating by 7,147+ Customers

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.

We Offer Same-day Service

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.

Book Your Service Today!

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.

Special Offer

$50 Off

Any Repair
Mention this coupon when you call. One per household, per visit. Cannot be combined with other offers. Terms and conditions may apply.

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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 7,147+ Reviews

Was good to talk to about are furnace problems. I need to stew on future repair or renew with new unit. Thanks again Steve for the house call. Bill Bernard
Bill Bernard
21 hours ago
Polite and very efficient, would not hesitate to recommend them.
Carolyn Pitre
1 day ago
A great customer service experience Brendan is knowledgeable and professional.The work was completed in a timely fashion with no issues, much appreciated thank you.
Dean Wilkins
1 day ago
Shamalle did a great job today
Will Anthony
1 day ago
Emilian did a great job very informative and thorough.
Scott Bisson
1 day ago
Wolfer Tech, Donny was great. On time, explained what he was going to do and completed the work. Courteous & congenial!
I hope he comes for all our check-ups!
Lorna Simpson
1 day ago
Christian did an outstanding job of fixing an outlet in our bathroom for us today. He explained everything clearly, did his work efficiently and was on time. Very service oriented and we will be asking him to return for a full electrical inspection in the near future! Wolfers value plan is great! Highly recommend it to new clients! It’s worth every dollar you spend on it!
Wanda Stuivenga/Stenkamp
1 day ago
Chris R was fantastic today!! He was very helpful
Lisa Brundidge
1 day 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.