The 14th Renewable Energy World Exhibition & Forum was held at Pacifico Yokohama in Yokohama City from July 10th to 12th. Introducing policies and systems for the continuous introduction of renewable energy based on the end of FIT (Fixed Price Purchase System) from various angles. At the exhibition hall, exhibits related to livestock energy and hydroelectric power generation attracted a great deal of attention. "ELIS presented the research results on the effect of blade shape on the output characteristics of the ultra-low head undershot water wheel and the performance of the breast shot water wheel." (Excerpted from the article published on July 22).