He is someone who works full time in researching alternative energy solutions for those fishing villages.
Wind or solar solutions that he specifies have to be rugged and easily maintained without access to fancy tools, and batteries can wear out quickly in high-temperature environments.
Wind or solar solutions that he specifies have to be rugged and easily maintained without access to fancy tools, and batteries can wear out quickly in high-temperature environments.
Thus he has been researching supercapacitors.