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Taiyo Holdings Fires Up Floating Solar Plants in Gifu, Aichi

2019/09/22 18:58
Sousuke Kudou, technical writer
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The Hosoike Floating Solar Power Plant (source: Taiyo Holdings)
The Hayashiike Floating Solar Power Plant (source: Taiyo Holdings)

Taiyo Holdings Co Ltd announced Sept 17, 2019, that Taiyo Green Energy Co Ltd (Ranzan-machi, Saitama Prefecture), a subsidiary of Taiyo Holdings, has started operation of floating solar power plants in Yoro-cho, Gifu Prefecture, and Nisshin City, Aichi Prefecture, Japan.

"Hosoike Floating Solar Power Plant" in Yoro-cho, Gifu Prefecture, has an output of about 2.154MW and is expected to generate about 2,657,000kWh of electricity per year. The solar panel, PV inverter and float employed for the plant are products of JA Solar Holdings Co Ltd, Toshiba Mitsubishi-Electric Industrial Systems Corp (TMEIC) and Environmental-Resources Development Consultant, respectively.

The FIT tariff set for the plant is ¥18/kWh. The plant started operation Aug 1, 2019.

"Hayashiike Floating Solar Power Plant" in Nisshin City, Aichi Prefecture, has an output of about 723kW and is expected to generate about 940,000kWh of electricity per year. The solar panel, PV inverter and float employed for the plant are products of Hanwha Q Cells Co Ltd, TMEIC and Environmental-Resources Development Consultant, respectively.

The FIT tariff set for the plant is ¥18/kWh. The plant started operation Aug 30, 2019.

In general, when the temperature of a solar panel increases, the amount of electricity generated decreases. By installing solar panels on the water, it is possible to prevent their temperature from rising, compared with solar panels set up on the ground, roofs, etc.

So, floating solar plants have an advantage in terms of power generation efficiency. Also, because they block sunlight coming to the water surface, they are expected to prevent the generation of water bloom.

Taiyo Green Energy started operation of its first floating solar power plant on the surface of a balancing reservoir in the Ranzan Hanamidai Industrial Park (Ranzan-machi, Saitama Prefecture) in October 2015 and opened "Ranzan Onuma Floating Solar Power Plant" in December 2017 in Ranzan-machi. Also, the company acquired two floating solar power plants in Hyogo Prefecture in January 2019 and one floating solar power plant in Nara Prefecture in February 2019.

The two plants that Taiyo Green Energy started to operate this time were installed after obtaining the rights to run the projects from other business operators that obtained facility plan certifications. As a result, the amount of electricity that Taiyo Green Energy is expected to generate per year reached about 9.2GW, which is equivalent to 60% of the annual power consumption of the Taiyo Green Energy group in Japan.