Out of the processes of the water cycle, namely evaporation, precipitation, condensation, transpiration, storage, and flow, the condensation part of the water cycle releases energy. People might argue that it is evaporation, but actually during evaporation, what happens to energy is that it is taken in which makes the environment cooler. During the condensation, it is needed for water vapor to release the energy from evaporation which in return makes the environment warmer. As to the other three, transpiration, storage, flow, there is no known releasing of energy involved.
