Backup Generators
Home generators can be a convenient backup during a power outage if used correctly. Review generator types and how to safely operate them to protect yourself and our crews.
Backup generator types
Portable generator
A portable generator is the most common choice for home use. Generator power may have weaker voltage- and frequency regulation than utility power. Plug appliances directly into a portable generator. Portable generators can also be connected to your home’s wiring, but only through a code-approved device that prevents a generator from feeding power to PGE’s system.
Stationary generator
A stationary generator is connected to your home wiring and should only be installed by an electrical contractor.
This option is the best choice for people who need to keep medical equipment powered at all times.
Additional requirements
Emergency fuel supply: Have enough generator fuel to last through an extended outage or natural disaster: Emergency preparedness experts suggest supplies for at least 3 to 10 days. You will also need to install a device that keeps your generator from back feeding into PGE’s system. See the “Generator Safety” tab for more information.
Backup generator safety
If a family member depends on medical life-support equipment, a back-up generator can literally be a life saver during an extended power outage. A generator can also save perishable food during a prolonged outage, let you keep your home office running, or power other essential equipment.
A home generator can be a convenient backup solution during a power outage, if you use it safely. Before turning on a generator, always follow manufacturer instructions!
Always operate your portable generator outside. Place it in a well-ventilated area way from doors, windows and your garage. Otherwise, deadly odorless carbon monoxide can be drawn into your house and poison your family.
Don’t get shocked! Use only an outdoor-rated, grounded extension cord; one with a GFCI (ground-fault circuit interrupter) is best.
Never “back feed.” Don’t try to power the house by using a doctored extension cord to plug a generator into a household outlet. This is extremely dangerous! It can not only ruin your home’s wiring and start a fire, it can also accidentally energize a power line our crew thinks is safe to work on. An unsuspecting PGE line worker could be seriously injured or killed. Only connect individual appliances to the receptacle outlet of the generator.
Install a transfer switch. Prevent portable generator back-feed problems by having a transfer switch installed in your home. It permits the home’s wiring to be disconnected from PGE’s system, and allows you to control the flow of electricity to those circuits you need most (like your heater or refrigerator). Installing a transfer switch requires a permit and an inspection by your local building authority, so it’s a good idea to have it installed by a licensed electrician.
Avoid burns. Generators can get very hot during operation. Use extreme caution to avoid burns and let the engine cool before you refuel.
Keep children and pets away from generators at all times.
Turn off all equipment powered by the generator before shutting down the generator.
Don’t overload your generator. Follow the wattage guidelines in your owner’s manual.
Special considerations for permanent backup generators
Permanently installed backup generators must meet electrical codes and have a transfer switch to prevent dangerous back feed of electricity into power lines. Contact a licensed electrician to install a stationary backup generator. Please notify PGE if you have a stationary generator.
If you will use your generator to operate an appliance with a large motor, you may need to install a power conditioning device such as an uninterruptible power supply at sensitive appliances. Check the manufacturer’s specifications for details.
Frequently asked questions
What do I need to know before I install a generator?
Prior to installing a generator on your home, have your licensed electrician call PGE to advise that you are planning to install a generator and PGE will advise of the necessary steps your electrician needs to follow for a successful installation. Please call PGE Customer Service at 503-228-6322 or 1-800-544-1795.
How do I know the right type of generator and installation for my home?
The right person for the job makes all the difference. There are licensed electrical contractors throughout Oregon that can help you investigate the right generator and installation for your home. Although we cannot guarantee service and availability, here are some options to get you started. You can also search for licensed electricians at Oregon’s contractor licensing page.
How large of a generator should I invest in?
That depends on how much equipment you need to operate during a power outage. For assistance in understanding your power needs, contact an electrician.
What should I do about my life-safety equipment that needs constant power?
A stationary or permanently installed generator is your best choice. After an outage, it can restore power in seconds and support all loads as long as it has fuel.
Will all of my equipment run properly when powered from a generator?
Newer generators feature electronic governors, which can regulate voltage to plus or minus 6 percent of nominal or better. Most equipment should work with this type of voltage regulation.
How can I use my home generator to power lights in my home or my electric water heater?
To power circuits in your home safely, you need an electrician-installed transfer switch. Contact an electrician for cost estimates.
Can I plug my generator directly into an outlet?
Never plug your generator directly into an outlet in your home. You can ruin your home’s wiring and cause a fire, or power may back feed into PGE’s lines, putting our repair crews at risk.
How much emergency fuel should I have available?
How much emergency fuel should I have available? Have enough generator fuel to last through an extended outage or natural disaster: Emergency preparedness experts suggest supplies for at least 3 to 10 days.
Plan for medical needs
Use medical life-support equipment? Have a plan in place and consider a backup generator in case of an extended power outage.
PGE mobile app
Life is busy, and we want to make it easier for you to do business with us. The PGE app for Android and iPhone is the simplest way to pay a bill, report an outage, and customize alerts.