Tetsunari Iida (飯田 哲也, Iida Tetsunari; born 1959, Yamaguchi Prefecture, Japan) is director of the Institute for Sustainable Energy Policies in Japan.

[1] Iida started his career as a nuclear engineer, but he quit in 1992, and went to study renewable energy in Sweden.

[2] Iida started his career as a nuclear engineer, but he quit in 1992, and went to study renewable energy in Sweden.

When he returned to Japan in 1998, he formed the Institute for Sustainable Energy Policies.

The foundation will bring together some 100 experts from around the world to analyse obstacles to implementing renewable energy, and offer policy recommendations to the new Japanese government.