Toyota Motor Corporation (TMC) and Aisin Seiki Co, Ltd will provide a total of 30 residential, solid-oxide fuel-cell (SOFC) cogeneration systems developed jointly by Osaka Gas Co., Ltd. (Osaka Gas), Kyocera Corporation (Kyocera), TMC and Aisin to five Japanese gas companies, as part of the New Energy and Industrial Technology Development Organization’s (NEDO’s) Solid Oxide Fuel Cell Verification Project for 2009.
The system is one-third lighter and smaller than TMC and Aisin’s 2008 system, facilitating easier installation in multi-unit housing complexes and detached houses. The power generating unit, which uses natural gas as its feedstock, delivers 700W of power with a rated generation efficiency of 45% (LHV) and 41% (HHV). Rated exhaust recovery efficiency is 40% (LHV) and 36% (HHV). (HHV includes the latent heat of vaporization of water.)
The hot water heating unit holds a volume of 70 liters (18.5 gallons) at approx. 70 °C (158 °F).
TMC and Aisin will provide four SOFC cogeneration systems to Tokyo Gas Co. Ltd., one to Toho Gas Co., Ltd., 23 to Osaka Gas and one to Saibu Gas Co., Ltd. TMC and Aisin have already supplied one to Hokkaido Gas Co., Ltd.
Once installation is complete in regular households, the five gas companies will gather data necessary for commercialization.
TMC and Aisin have worked together with Osaka Gas and Kyocera since March 2009 on the development of residential SOFC cogeneration systems. By joining in this verification project to gather data for the research and development of commercially viable systems, they hope to accelerate progress, culminating in the commercialization of residential SOFC cogeneration systems by the first half of the 2010s.