Watt do you Know? Take our Energy Quiz!

(Page 4 of 8)

June 9, 2008
By Megan Phelps 
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5. Which of these is the right size for a home-scale wind turbine or solar system?

A. 1 watt
B. 1 kilowatt
C. 1 megawatt
D. 1 terawatt

 

 


Answer: B, 1 kilowatt. 

Most home systems range from 1 kilowatt to about 5 kilowatts. (A megawatt is much bigger than that, it's equal to 1,000 kilowatts. A terawatt is even bigger, equal to one billion kilowatts. Check out this handy chart that shows how all these units of measurement are related.)


6. Which of these is equal to 1 megawatt?

A. One backyard wind turbine
B. All the commercial wind projects in New Hampshire
C. All the commercial wind projects in Texas
D. All the commercial wind projects in the world

 

 

Answer: B. All the commerical wind projects in New Hampshire. 

At the home scale, wind power is usually measured in kilowatts, and at the utility scale, it's measured in megawatts. Most U.S. states have one or more utility-scale wind farms, so when you talk about wind power at the state level, you're usually talking about megawatts.

Utah, New Hampshire and Rhode Island each have about 1 megawatt of installed wind power.  Texas has the most of any U.S. state, with about 5,000 megawatts of installed wind capacity.

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