Deriving small amounts of energy from the environment for low-power devices. Motion, body heat, solar rays and electromagnetic radiation are examples of sources of energy.
"energy harvesting." YourDictionary, n.d. Web. 16 August 2018. <http://www.yourdictionary.com/energy-harvesting>.
energy harvesting. (n.d.). Retrieved August 16th, 2018, from http://www.yourdictionary.com/energy-harvesting