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SME Inc of Seattle offers our customers a broad and deep range of electrical services across commercial and industrial industries and residential properties. From tenant improvement, new build or renovations to assembly lines, healthcare facilities or multi- or single-family residences, the team at SME Inc provides experienced engineers and licensed electricians who have the skill and expertise to design, install and complete any project.

Residential Generator Sizing

Generator Sizing

Today's home is larger and has more power-consuming devices than ever before. And in older homes the need to maintain our electrical power and life safety systems when a power outage occurs is equally important.

Whether you just want to provide electrical power to a few essential appliances in your home, or you wish to energize your entire home, our electrical power generator sales and installation team has the experience and knowhow to help you select the right size electrical power generator for your needs. Our team of experts will come to your home or business and provide a free consultation and estimate. Because the cost of a standby generator system depends on many items, we provide emergency and standby electrical power generators based solely on what your needs truly are. Among the items to consider are the electrical power generator size, installation, permits, and fuel source.

Many people believe that smaller electrical power generators are the way to go for standby electric power because they are not running all the time. This is a myth that can have disastrous results. Emergency generator under-sizing is one of the most common mistakes committed by buyers. Not only does it involve the risks of damaging your new home generator, but it can also damage some of the electrical appliances and equipment connected to it. An undersized home generator can even limit overall productivity of the standby generator system. If nothing else, the key thing to remember here is that more is always better than less.

We utilize sizing charts based on real life wattages and power consumption from common household electrical appliances and electric equipment. The following is just a sample of common electrical power consumption for basic household items. This is, in part, some of the information we use to properly size your standby generator system.

Typical backup power needs:

Appliance

Rated (Running) Wattage

Surge (Starting) Wattage

Freezer

500

1000

Furnace Fan -1/2 HP

875

2300

Lights

75

75

Refrigerator

500

2000

Television

500

500

 

Coffee Maker

1500

1500

Computer

720

720

Dishwasher

700

1400

Electric Range

2100

2100

Electric Water Heater*

4000

4000

Garage Door Opener - 1/3 HP

750

1650

Garage Door Opener - 1/4 HP

300

1000

Gas Dryer

1800

1800

Microwave

800

800

Radio

300

300

Space Heater

1800

1800

Sump Pump - 1/2 HP

1050

2150

Sump Pump - 1/3 HP

800

1300

Toaster

1650

1650

Vacuum

1100

1100

Washing Machine

1150

2300

Well Pump - 1/2 HP

1000

2100

Well Pump - 1/3 HP

750

1400

Window Air Conditioner

1200

2160

Going to a dealer and buying the best or cheapest electrical power generator available without any other consideration is clearly not the best approach. It is always better to delve deep into your power generation requirements before making a choice. You can do this by having a licensed electrician from a fully licensed electrical contractor perform an inspection and calculate your power requirements for you.

The licensed electricians at SME Inc of Seattle have the training, experience, and know how to select, install, and service the proper standby power generator for your home.