News

DIC Begins Operation of 1.6MW Solar Plant for Self Consumption

Mitsubishi Electric's solar panel, TMEIC's PV inverter

2018/01/28 23:38
Sousuke Kudou, technical writer
Print Page
The solar power generation facilities at DIC's Kashima Factory (source: Mitsubishi Electric, photo taken in January 2018).

Mitsubishi Electric Corp announced that it has delivered a solar power generation system with a solar panel capacity of 1.6MW to DIC Corp's Kashima Factory in Kamisu City, Ibaraki Prefecture, Japan, and the plant will be completed Jan 26, 2018.

According to Mitsubishi Electric, it is Japan's largest solar power generation system for self consumption.

Mitsubishi Electric delivered 5,588 solar panels manufactured by the company and Toshiba Mitsubishi-Electric Industrial Systems Corp's (TMEIC) PV inverters (750kW x 2) and PV inverter enclosure.

The solar panel was developed and manufactured in Japan. It comes with "linear output guarantee" (20% or less output deterioration in 25 years) and "guarantee against defects" (for 10 years). Its salt resistance was improved by employing a three-layer PET film and plating parts for attaching the frame.

The four corners of the frame is processed so that they remove water drops and dust. The enclosure is also resistant to salt, and the outdoor unit of its air conditioner is highly salt-resistant.

The mounting system employed for the plant has a panel installation angle of 5° so that the distance between arrays (of solar panels) can be shortened, increasing the number of installed solar panels. The annual power generation was maximized by calculating an optimal installation angle and layout through a simulation considering the manufacturing cost of the mounting system and limited space.

The factory continuously operates on Saturdays, Sundays and national holidays. So, all the electricity generated is consumed in house. The installation of the solar power generation system was selected for the "Subsidy for Projects to Reduce CO2 Emissions (Project for Independent Diffusion of Renewable Energy-derived Electricity/Heat for Fiscal 2017)" of Japan's Ministry of the Environment.