Thinking Like an Engineer
4th Edition
ISBN: 9781269910989
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: Pearson Learning Solutions
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Textbook Question
Chapter 11.6, Problem 8CC
You want to install a solar panel system on your home. According to one source, if you install a 40-square-foot system, the cost curve is shown in the graph.
- a. List the fixed cost and the variable cost for this system.
- b. If the source claims that you can break even in 3.5 years, how much savings are you generating per year (or, what is the slope of the savings curve or the “revenue” that you generate by installing the system)? Draw the “revenue” curve on the graph and use it to answer this question.
- c. If you receive a federal tax credit for “going green,” you can save 30% on the initial fixed cost. With this savings how long does it take to break even? Draw this operating cost curve, labeled “Credit Cost” on the graph, and use it to answer this question.
- d. With the new tax credit, at what time do you reach a savings of $1000?
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Chapter 11 Solutions
Thinking Like an Engineer
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