Energy enters the ecosystem mainly by the process of
Energy flow is the capture of solar energy through photosynthesis, which is the process used by green plants to convert radiant energy from the sun into organic compounds such as glucose.olar energy flow is not a cycle, but a flow from the sun to the biosphere. It is one of the four basic ecosystem processes or windows through which we can begin to perceive the ecosystem as a whole. The others are the water cycle, mineral cycles, and community dynamics or ecological succession.