In order to demonstrate a complementary relationship between solar energy and wind energy, the authors proposed the WISH(Wind and Solar Hybrid) type windmill. The flexible amorphous photovoltaic modules are attached to the buckets of Savonius type windmill.

Japan has few indigenous energy supplies, and imports the bulk of its energy, so it is hardly surprising that, following the oil crises of the mid 1970's, it has taken renewable energy seriously. Moreover, increasing constrains on energy and the environment, especially the global environmental...

In the present work, authors proposed a small scale wind driven generator based on a design concept of an appropriate technology. In planning to manufacture a wind driven generator by oneself as the most essential component, an automotive alternator was adopted because of an obtainability in any...

This paper reports author’s experiences of technical assistance for developing countries.

In March 1995, a small scale wind and solar hybrid power system was installed at Ashikaga Institute of Technology. Until now, the authors have acquired the data of the output of the hybrid power plant along with wind speed, wind direction, and the solar radiation, in order to demonstrate a...

This paper describes recent activities on wind energy in Japan. The national “Sunshine Project” conducted by the Ministry of International Trade and Industry, was reviewed in 1990 to map out a new energy strategy in the Age of Global Environment. As a result, a new 500kW WECS R&D project has...