p. 91-95
The Pressurized Fluidized Bed Combustion (PFBC) system, using coal which is the most stable fossil fuel energy, enables higher efficient power generation. Hokkaido Electric Power Company, Inc (HEPCO) adopted the system to its Tomatoh-Atsuma Unit No.3,for the first commercial plant in Japan, and this unit started commercial operation on March 8^<th> 1998. The paper presents the out line of the system and systematic flow, and adjusts future technological problem experienced since starting operation.