Reducing the content of carbon dioxide in air is the key to addressing climate change.Carbon capture and storage is an important measure to reduce carbon dioxide emission.Capturing carbon from ambient air directly needs large amounts of energy.The loads on carbon capture devices are flexible,which to some extent can be driven by intermittent energy. Renewable energy such as wind power and solar energy has great potential for development,which has the characteristics of fluctuation.Using renewable energy to capture carbon from ambient air directly can reduce the concentration of carbon dioxide in the atmosphere.It is a promising way to address global climate change.This paper analyzes the potential of using renewable energy to capture carbon from ambient air directly,and proposes the key technologies of using renewable energy to capture carbon.The planning of using renewable energy to capture carbon is preliminarily studied,and the development trend of carbon capture driven by renewable energy is discussed.