Video and audio signals are streamed to remote viewers that are connected to a communication network. The heat exchange apparatus performs heat exchange for the metal mold by supplying the hot heat carrier and cold heat carrier to the heat exchange passage switching alternately. When the panels are secured together they form a unitary load-bearing structure. In a first arrangement, the motion signal may be processed with an output of the implantable microphone transducer to provide an audio signal that is less vibration-sensitive than the microphone output alone. Further, feedback to the linear regulator taken from the combined output signal causes it to generate anti-phase ripple compensation, thereby reducing the magnitude of switching ripple in the converter’s combined output signal. An apparatus for aggregating power flow may include a memory and a processor coupled to the memory to receive electric vehicle equipment attributes from a plurality of EVEs, aggregate EVE attributes, predict total available capacity based on the EVE attributes, and dispatch at least a portion of the total available capacity to the grid.