Sustainable Energy
Midterm Exam
Professor Womersley
Due Monday April 25th in class
Instructions
This is a take-home exam. Answer all questions, showing work where
necessary to demonstrate skills or learning, diagrams if asked or if it helps.
If you don’t know or can’t work out an answer, put down what you do know. You
may research answers. You may discuss
them with the instructor. You may not confer with other students. Submit
electronically, multiple files allowed including statistical files in JMP, Excel,
or Smith’s. Use PowerPoint for posters unless alternately agreed with the
instructor.
Exam is 20% of grade for class, 10% given for each problem below
Only one problem:
Create a cost analysis for an industrial wind farm for an
appropriate Maine site. Specify make, model and installed cost of equipment,
wind speed estimates (from wind maps), rated and actual power produced. Use a
Weibull model. Provide simple payback and amortized (levelized) cost
effectiveness calculations, including economic profits and levelized cost per
watt. (Use an annuity model for amortized/levelized costs.)
(See me for help if you didn’t get enough practice doing all
this in class or lab.)
Your blank Weibull model spreadsheet is available at
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