3E is an internationally leading expertise company in all domains of renewable energy and energy efficiency. It provides dedicated services to project and product developers, technology and knowledge organisations as well as financial institutions and policy makers in the following domains: bio-energy, photovoltaic and thermal solar energy, wind power (onshore, offshore), hydro power, energy efficiency in buildings and industry, corporate and public energy strategy.

3E has initiated the development of a medium-size wind turbine for application in hybrid systems for power supply in remote corners of the world.