Intelligent energy for today and tomorrow

The best concepts for a future energy mix – that is our way. For more than 20 years, we break new grounds with experience, competence, and responsibility.


Logo ecoJoule

ecoJoule – the Group's project developer and constructor of wind, solar, and bioenergy power plants.


Logo deanSolar

deanSolar – a full portfolio of services for solar power plants, from project development to construction and plant management.


Logo deanBV

deanBV is a service provider tasked with the management and administration as well as the technical and commercial operation of wind, solar and bioenergy installations.


Logo deanHG

deanHG is a trading house for renewably sourced electricity, heat and climate and energy assets. We offer complete or shares of energy generation plants, especially in the wind, photovoltaic and bioenergy fields.



Keep up with the latest deanGruppe news, including our projects and the latest deanNews newsletter

Green energy for more than 20 years

In 1991, we started off with courage, a vision, and a single wind turbine. In 1998, the deanGruppe was founded. Today, we offer services for wind, solar, and other renewable energy systems. An overview of select projects:

All projects