RE:Source Fitness has developed a process (patent pending) that allows cardio equipment to produce electricity that can either be used by the facility or returned to the power grid. Fitness centers and their members will be able to view their electricity creation in real time as well as track totals on the user interface on the console, on the web, and on their iPhones. Uploading electricity back to the power grid is as simple as plugging the machine into the wall using a standard three prong power cord.