Renewable energy sources, mainly water energetics, are historically the first field in which started cooperation between companies of the cluster and that resulted in the establishment of export alliance CREA (Czech Renewable Energy Alliance), the predecessor of the present form of the cluster.
The objective of the cluster CREA Hydro & Energy in the field of renewable energy sources is to continue in the long tradition of research and development, technical design and production of facilities in Brno and its surroundings. The oldest technically utilized renewable energy source is hydropower. And in its utilization, the region has a significant position since the function of professor Kaplan at the technique and production of first Kaplan turbine in the company Štorek in Brno. Newly are developing technologies for utilization of wind energy, biomass, solar energy and energy use of waste in the region.