38MW Solar Plant, 10MWh Battery to Be Installed in Hokkaido

2016/10/05 08:19
Kenji Kaneko, Nikkei BP CleanTech Institute
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The Li-ion storage battery manufactured by LG Chem (source: GPD)
The battery (source: GPD)

Green Power Development Corp of Japan (GPD) will launch a business of selling electricicy generated at a solar power plant equipped with a storage battery in Tomakomai City, Hokkaido, Japan.

GPD (Chiyoda-ku, Tokyo) is a company that runs a renewable energy-related business including mega (large-scale) solar power plants.

GPD will start construction of the plant Oct 5, 2016, and start operation in August 2018.

The total output of solar panels installed at the plant will be 38.1MW. The total output of PV inverters to be connected to a power grid is 25MW. The capacity and output of the battery are 10MWh and 20MW, respectively.

The solar panel and battery employed for the plant are products of China-based Jinko Solar and LG Chem Ltd, respectively. Fuji Electric Co Ltd provides EPC (engineering, procurement and construction) services as well as PV inverters and bidirectional inverters for the storage battery.

The storage battery system has a larger capacity than any other stationary storage battery system that has been connected to a power grid for improving the operation of the grid, exclusing systems that power companies installed for verification projects, etc. Though the storage battery increases initial investment, the FIT tariff secured for the project is ¥40/kWh, making the project feasible.

In regard to 2MW and higher-output solar power generation facilities for which grid connection applications were submitted after the total amount of applications exceeded 400,000kWh, Hokkaido Electric Power Co Inc (HEPCO) requires them to install a storage battery to prevent rapid output fluctuations as a condition for grid connection.