Alternative ☆ energy contest got cooperation of technology and society division in the Japan Society of Mechanical Engineers (JSME) and started in 2008 as a contest about energy use for students both of university and technical college. JSME started to sponsor from the 4th contest in 2011 and the participation qualification was excluded from the 5th contest in 2012 for the purpose of spreading this contest. It was investigated about the other contests held at a similar destination and it was compared to our contest in this paper.