Towa Akusu has partnered with Korean companies to develop and operate a floating photovoltaic power plant in Saitama

Higashiwa Akusu (Saitama City), which manufactures and sells concrete, has entered the floating photovoltaic power plant business
.
At the end of March 2016, the Higashiwa-Yoshimi Power Station with an output of 400 kW was launched on the Waminuma Water Surface in Yoshimi Town, Higi-gun, Saitama Prefecture
.
The company is engaged in the development of
photovoltaic power generation on the water, mainly in Saitama Prefecture.

The Higashiwa-Yoshimi Power Station is built on an agricultural reservoir owned by Yoshimi Town, and Higashiwa Akusu rents the lake from Yoshimi Town and installs 1,296 solar panels
.
The "Floating Shelf Benchtop System"
is a system in which a steel rack is installed on a polyethylene float and a battery panel is fixed on it.

Japan's floating photovoltaic power plants are mainly based on the "floating type" in which panels are directly installed on resin floats, and there are many cases where products from Ciel Terre International are
used.

The "floating rack tabletop system" introduced by Dongwa Akusu is a floating body developed by K-Water, a Korean reservoir management company, and manufactured by SCOTRA of South Korea
.
Platforms made of highly corrosion-resistant alloy steel are assembled on land and mounted on floating bodies on the lake surface to fix the panels
.
The mooring system using ropes and chains is connected to the foundation of the lake bottom to maintain stability
in the face of wind and waves.

It is said that this type of platform can be installed on lakes with deep water depths compared to conventional floating body types, and it is relatively resistant to strong winds and waves
.
In addition, depending on the design of the floating mount, the setting
angle can be changed.

In addition to the floating platform system, Towa Akusu is also jointly developing a "floating type" platform with k-water
.
In the development of floating photovoltaic power plants in Japan, it is intended to use two types
according to the output scale and the lake environment.

Higashiwa Akusu has developed and operated photovoltaic power plants with an output of more than 1MW in Nikko City and Saitama City in Tochigi Prefecture, and 500kW photovoltaic power plants
in Nasu-Shiobara City, Tochigi Prefecture.
Both are above-ground types, and the Higashiwa Yoshimi Power Station is the first hydropower station
.
The panels of the power station are manufactured by LS Power Generation in Korea, and the photovoltaic inverter (PCS) is made of products
from SMA Solar Technology.
Saitama Prefecture has one of the largest number of reservoirs in the Hichi area in Japan, so it is the first to develop a floating photovoltaic power plant
centered on the region.