Nobuhiro Kawaguchi was the 3rd generation of his family who acted as a president of Kawaguchi Steel Industry Co., Ltd., a roof design & construction company founded in 1930. After he joined, he designed lightweight solar panels & obtained a patent for a special mount. He is promoting renewable energy in Japan & the electrification of rural areas in developing countries such as Africa.
He established Kens.Co;Ltd in March 3rd, 2013, as well as GOOD ON ROOFS in 2018 to expand his idea in Africa. His business model was highly evaluated and won several recognized competitions in Japan. That is the spotlight as a company that will help to achieve SDGs for Africa. He did solar projects in more than 10 African countries. Most of his projects aimed to provide solar power to the non-electrified schools in Africa. Our main vision is “LIGHT UP AFRICA” with GREEN ENERGY FOR EDUCATION.
Kens.Co, Ltd. has experienced to work with GGP (Grassroots Human Security Projects), ODA(Official Development Project), UN organizations, JBIC(Japan Bank for International Corporation), IOM, JICS(Japan International Cooperation System), JICA, JSB(Japanese Supplementary Budget), and Counterpart Project over 12 years.
Kens.Co; Ltd has won several awards for contributing to great development in the renewable energy sectors of Africa with a dynamic business model. Also, one of the prominent contributors in Africa is from Kyushu, Japan.
Managing Director of:
- Kawaguchi Steel Industry Co., Ltd. (Roof Construction Unit, Japan)
- Kens Co., Ltd., Japan
- GOODS ON ROOF, Benin
- GOODS ON ROOF, Japan
- Creative Response – Social Innovation School Program Advisor
- Former President – Tosu Junior Chamber Industries (JCI) 2004



