Mie Kotsu Co Ltd announced Nov 10, 2017, that it has installed a roof equipped with a solar power generation system at the bus parking lot of its Iga Office in Nishitawara, Nabari City, Mie Prefecture, Japan, and started power generation.
By constructing a roof at a parking lot for large-size buses, it becomes possible to improve work efficiency at the time of inspecting/maintaining buses and reduce the amount of energy consumed by the air conditioning systems of buses. In addition, by employing a roof equipped with solar panels and selling electricity based on the feed-in tariff (FIT) scheme, the cost of installing the roof can be recovered, Mie Kotsu said (See related article).
Under the roof for large-size buses at the Iga Office, 50 buses can be parked. Another roof equipped with a solar power generation system was installed at a parking lot for private cars, and 36 cars can be parked under the roof.
The output of the solar power generation system is 359kW, and it is expected to generate about 350,000kWh of electricity per year. The total investment is about ¥150 million (approx US$1.32 million).
JFE Technos Corp (Tsurumi-ku, Yokohama City), a wholly-owned subsidiary of JFE Engineering Corp (Chiyoda-ku, Tokyo), provided EPC (engineering, procurement and construction) services for the plant. The solar panel and PV inverter employed for the plant are products of Solar Frontier KK and Toshiba Mitsubishi-Electric Industrial Systems Corp (TMEIC), respectively.
Mie Kotsu installed roofs equipped with solar power generation systems at three offices, and the roof at the Iga Office was completed last. The total output of the three systems is about 1.6MW. The first and second systems are a 457kW system at the Yokkaichi Office in Kawashima-cho, Yokkaichi City, and an 811kW system at the Chusei Office in Atsunodai, Tsu City, and they started to sell electricity in June and September 2017, respectively.