A cogeneration system is a power-generating system that improves the efficiency of energy use by using environmentally friendly city gas to generate electricity. It also recycles the waste heat generated in that process for air conditioning, water heating, and a steam power system. Compared to supplying energy via a thermal power system, a cogeneration system boasts higher efficiency in energy use and reduces CO2 emissions by about 76,000 tons per year. At the Kameyama Plant, LNG is supplied directly from the gas company to the plant by a dedicated pipeline (extending from Suzuka City to Kameyama City, a total length of 17 km), eliminating the use of fuel-transporting trucks that emit exhaust fumes.