Japan's biggest electricity wholesaler knows it will take more than cutting-edge coal technology to save the environment.

The Electric Power Development Co., known as J-Power, is looking to build its first major power plant that burns natural gas as well as use more woody biomass instead of fossil fuels, Executive Officer Hitoshi Kanno said.

That is because even the most advanced coal technology isn't enough for companies like J-Power to meet Prime Minister Shinzo Abe's emissions goal, he said.