The present application relates to a data bus line to secure secrecy of digital data without a complicated exchange of hardware and decreasing processing speed. In accordance with one aspect, a method is provided of providing multicast functionality through an energy portal, which reduces bandwidth required for communication between the energy portal and a server. The motor drives a vane impeller mounted in a housing and connected to a nozzle, similar to a leaf blower, but the intake to the impeller is arranged to suck up particles from a storage chamber.