Even as Nashville burnishes its tech reputation â see Oracleâs 8,500-job commitment as the latest example â Silicon Valley investors have asked Enexor BioEnergy CEO Lee Jestings why his company is in Middle Tennessee. He has told itâs an optimal place to do business and build a team and the proof is in the pudding. âWeâre sort of on a winning streak,â Jestings told the Home Page of his renewable energy startup, which markets the Bio-CHP system, a shipping container retrofitted with motors, valves, fans, pumps, ignitors, proprietary turbines and a digital interface to convert organic and plastic waste into energy on site. A Bio-CHP installation can generate 75 kW of electric power and 125 kW of thermal energy. Executives say the units can offset as much as 2,200 carbon dioxide-equivalent tons annually.