City-Chino is located at the foot of Mount Yatsugatake in the central Japan. Its elevation ranges from 800 to 1300m above sea level. This area can be characterized by long sunshine duration and a large elevation difference, which are both favorable to the renewable energy. Accordingly, the first author, a civil servent of the local government City-Chino, is engaged in the introduction of renewable energies such as the solar, small hydro power generations. The effort is now focused on a renewable energy park to be constructed at a large pasture ground. A solar power facility with a capacity of around 2MW is being designed and construction will start soon. An important heature is that the facility is to be owned and operated by a company founded by local private companies and inhabitants, so that earned income will benefit the local area. Progress of the project will be presented in the conference. A small hydropower equipment is also planned to be installed in a drinking water facility located beside the posture ground. This region belongs the source area of river systems. Accordingly the hydropower generation must fit a relatively small flow rate with a large water head. Since no water turbine suitable to the present condition is available with a reasonable price, a reverse-pump-turbine is tested in collaboration with a pump company, whose pump is now employed in the drinking-water system, so that no concern arises on the safety of the istallation. Primary test results will be presented in the conference.
Hiroshi Kawamura, Suwa Tokyo University of Science, Japan
Tetsuya Takano, City Office of Chino, Japan
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