This question requires you to think "outside the box". What types of alternative fuels or energy sources can you think of that are not discussed in the chapter?Disregard economic or practical considerations and brainstorm possible future sources of energy.Use the internet if you wish to assist in your answer

the textbook:Energy Finance and Economics: Analysis and Valuation, Risk Management, and the Future of

Energy, Wiley, 2013. ISBN-13:978-1118017128