Infini, Local Gov't Team on Disaster Countermeasures, Local Revitalization

2019/10/24 14:50
Kenji Kaneko, Nikkei BP Intelligence Group, CleanTech Labo
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Infini Co Ltd concluded the "Comprehensive Partnership Agreement Concerning Disaster Countermeasures and Local Revitalization" with Naraha-machi (town in Fukushima Prefecture) Oct 18, 2019.

Infini (Naniwa-ku, Osaka City) is a company that manufactures and sells solar panels under the brand of "Japan Solar." A signing ceremony took place at the town hall of Naraha-machi on the same day, and Town Mayor Yukiei Matsumoto, Infini President Kenji Miyazaki, etc participated in the ceremony.

The comprehensive agreement consists of (1) providing designated shelters at the time of disaster, (2) providing food, clothing, shelter and disaster information at designated shelters and (3) energizing local economy. Specifically, in normal times, a certain percentage of the revenue of Infini's Fukushima Factory is donated to the town every year. In cases of emergency, the facilities of the factory are provided as shelters.

The signing ceremony (source: Nikkei BP)

The construction of the Fukushima Factory was completed in July 2017, and it produces crystalline silicon (Si) solar panels. When in full operation, it can produce 300MW of solar panels per year with a three-shift system.

The site area of the factory is 31,237m2. The factory building is a two-story steel building, and its total floor area is 14,799m2.

Infini's Fukushima Factory (source: Nikkei BP)

On the roof of the factory building, a mega (large-scale) solar power plant with an output of about 1.5MW was installed, and all the electricity generated with the plant is consumed in the factory. Also, a storage battery system with a capacity of about 1.2MWh and an output of 1MW was installed. The battery is used to cut electricity cost by storing surplus solar electricity and peak shaving on a daily basis.

Currently, 85% of the power consumption of the factory is covered by solar electricity. Infini aims to achieve "100% renewable energy ratio" by procuring renewable energy-derived electricity from a company affiliated with Infini for the remaining 15%.

When a power grid goes down in a time of emergency, the power conditioners of the solar power generation (PV) system and the storage battery are independently operated and used as a micro-grid.