BIG STONE CITY, S.D.–(BUSINESS WIRE)–POET, the world’s largest producer of biofuels, and Antora Energy, a leading U.S. energy storage company, announced the commissioning of Antora’s 5 gigawatt-hour, multi-day thermal energy storage system at POET’s Big Stone City, South Dakota bioprocessing facility. The project advanced from initial construction to delivering energy in under 12 months and will be fully operational later this year. Upon completion, it will rank among the world’s largest ener