ClearSign today announced the conclusion of experimental permit status for its first Once Through Steam Generator (OTSG) project provided to Aera Energy, and application for a permanent operating permit. READ MORE

ClearSign announced that it has secured a follow-on commercial order from a California-based refinery following Duplex™ technology’s successful pilot with the company late last year. This is the first installation into a new heater rather than a retrofit into a heater with an existing burner. READ MORE