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World's Largest 11MW Fuel Cell Power-generating Plant

Fuel cell power-generating plant receives a high evaluation for its high power-generating efficiency.
Even better efficiency is achieved through polymer electrolyte fuel cells.

World's Largest 11MW Fuel Cell Power-generating Plant

Following the first and second oil crises, the Moonlight Plan of the Ministry of International Trade and Industry (MITI) included development of phosphoric-acid fuel cells (PAFCs), which boast high power-generating efficiency and superiority in terms of environmental considerations. These have attracted attention as a fourth type of power-generation technology, in addition to hydroelectric, thermoelectric, and nuclear power.

Toshiba began fundamental research in this field in the early 1960s. Beginning in 1982, it participated in the Moonlight Plan's project to develop pressurized fuel cells as a power source to replace thermoelectric power. A 1 MW plant was installed in Chubu Electric Power's Chita 2 Thermal Power Plant in 1987 for research purposes. In April 1985, Toshiba established a joint venture, International Fuel Cells (IFC), with United Technologies to seek new business for power companies. This joint venture fused United Technologies' fuel-cell technology (then the world's most advanced, and garnered through experience with spacecraft such as the Apollo series and the Space Shuttle) with Toshiba's power-generation plant technology. An 11 MW PAFC plant was delivered to Tokyo Electric Power's Goi Thermal Power Station in 1991. Operating through 1997, this plant was able to confirm the PAFC's high power-generating efficiency and environmental soundness.

Meanwhile, in 1990 a specialized on-site company, ONSI, was established as a joint venture with IFC. Beginning in 1991, 56 units of the semi-commercial PC25A;200 kW PACF, manufactured by Toshiba and featuring built-in reformers and electrical controls, were shipped domestically, to North America, and other markets around the world. These operated for a total of 40,000 hours, the target duration we had set for commercial models. The PC25C, which incorporated further cost and size reductions, was introduced for commercial use in 1996. In 1997, this model received the New Energy Foundation's New Energy Award (in the Commendations for the 21st Century Type New Energy Equipment/System Category). In Japan, this model is used for cogeneration purposes at facilities such as hospitals, hotels, breweries, amusement parks, and watersupply and sewage facilities. Recently, four 200 kW units were installed on the grounds of Expo 2005, held in Aichi prefecture beginning in March 2005, to supply electricity to the Japanese government's exhibition hall in the Expo's Nagakute Area.

In addition, since 1992, Toshiba has participated in the NEDO New Sunshine Plan. As part of this program, it began research and development into polymer electrolyte fuel cells (PEFCs), leading to the completion of a 1 kW class cell stack in 1995. It then began system development efforts, which led to completion of a 1 kW class PEFC cogeneration system for household use in 2000. Beginning in 2002, Toshiba has participated in the PEFC testing and other research projects of the New Energy Foundation (NEF), proceeding with development directed toward practical implementation of this technology.

50kW fuel cell power-generating experiment plant

50kW fuel cell power-generating experiment plant

Fuel cell main unit

Fuel cell main unit

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