SD Green Energy Inc., was established as a renewable energy division of System Diary Inc.
We mainly sell, install, and maintain small wind turbines optimized for the Japanese environment and market.
As a manufacturer of small wind power generators, we are involved in all renewable energies, contributing to the domestic production of energy, securing emergency power sources, and protecting the natural environment.

System Diary the core of the group, is a manufacturer of system notebooks.
Paper is always used for notebooks, and the source of the paper is forests.
We have been blessed with the natural environment for a long time.
We have established a renewable energy division to continue to protect the natural environment from that responsibility.