y the numbers, Japan’s energy consumption is around 25 percent of that of the U.S., which is the second largest electricity consumer in the world after China. Japan, like the U.S., spends around 30 percent of its electrical energy on the residential sector, aiding in the growth of the domestic HEMS market. The commercial & industrial (C&I) market includes office buildings, stores, manufacturing plants, and other large load sources (typically over 15 kilowatts to 50 kilowatts of peak demand). The C&I market is by far the largest market for EMSs, of which a large part is BEMS. The figure below shows why a HEMS market exists in Japan and the U.S., and why BEMS is a larger market overall.