Solar Plant Leverages Lessons From Thunderbolt
Cost-cutting efforts include weeding measures
Daiichi Jitsugyo Co Ltd, a general machine trading company focusing on industrial machines, constructed the mega- (large-scale) solar power plant "Daiichi Jitsugyo Iida Solar Power Plant" with an output of about 1MW in Iida City, Nagano Prefecture, and started generating power in March 2014 (Fig. 1).
Daiichi Jitsugyo had built up its expertise in solar power generation for some time by selling solar power generation systems and operating a 20kW small-scale system at its own building in Kawaguchi City, Saitama Prefecture, subsidized by the Ministry of the Environment. However, the domestic market for solar power generation had focused on houses for years, and the market for industrial systems, which the company had been targeting, was limited.
Amid such circumstances, Daiichi Jitsugyo decided to approach the mega-solar power plant business by itself in light of the drastic changes in the business environment following the implementation of the feed-in tariff (FIT) program. Iida Solar Power Plant is Daiichi Jitsugyo's second mega-solar power plant, following the 1.5MW-output "Daiichi Jitsugyo Kasama Solar Power Plant" in Kasama City, Ibaraki Prefecture.
Mitsubishi Electric's panel uses locally manufactured solar cells
Daiichi Jitsugyo advocated a policy to contribute to energizing the local area where the mega-solar power plant is constructed. Mitsubishi Electric Corp's solar panel (Fig. 2), which was employed at this plant, uses the solar cells manufactured at Mitsubishi Electric's plant in Iida City.
Manager Yoichi Matsuda of the Petroleum & Petro Chemical Plant Dept, Plant & Energy Div, Daiichi Jitsugyo, stressed, "We could help vitalize local industry by using materials and facilities that had been manufactured locally as much as possible." Daiichi Jitsugyo also deployed Toshiba Mitsubishi-Electric Industrial Systems Corp's (TMEIC's) PV inverter considering the business compatibility with Mitsubishi Electric, among other factors.
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