Sharp installed four molten-carbonate fuel cells at the Kameyama Plant. Each of these fuel cells can generate 250 kW of electricity. With the total amount of electricity generated reaching 1,000 kW, this is the largest fuel cell system of its kind in Japan. All of that electricity is used to produce power for the plant. Moreover, the heat that occurs when power is generated is captured and used. With this system, the plant realizes an approximately 3,000-ton reduction in CO2 emissions per year compared to the emissions that would occur if electricity were purchased the conventional way. Because this system can produce energy even at night and on rainy days, a stable supply of electricity can be created when used in combination with the photovoltaic system.