Onsite Energy Corp. (OTCBB: ONSE; "Onsite") Monday announced that it has signed an agreement with a major frozen food processing company located in Central California. This project is in addition to the projects previously announced at Central Cold Storage, Del Mar Foods and Grimmway Farms. Onsite is implementing a turnkey project to improve the efficiency of the refrigeration system at the facility that involves installation of new condensers and purgers.