Rosemead, CA 91771-0001. Business Customers Southern The approximately 30,000 heavy-duty trucks that transport containers and bulk freight between ships and rail facilities at California's 40 ports consume 138 million gallons of diesel yearly and release over 3 billion pounds of carbon emissions into the atmosphere. You mentioned that SCE is working to install smart meters and remote control devices as well as build a digital communications network to assist with better demand forecasting. //-->