Winfield Japan is a renewable energy company based in Tokyo, Japan. Our main focus are (1) to develop and build large-scale solar parks in Japan (2) to provide one-stop solution for self-consumption solar system both for industrial and residential usage (3) to develop, build and operate large-scale agricultural solar parks (so-called solar sharing system) in Japan In order to (I) maximally reduce excessive carbon footprint from our society (II) ideally be able to reduce electricity cost ASAP (III) reduce sudden black out combined with energy storage system when emergency or disastrous situation happens