Abstract: A method of running an elevator system in both passenger operation mode and a renewable energy mode. The method includes determining if a request has been received for an elevator cab to move to a specific location; determining if a request has been received to operate the elevator cab in a specific alternative mode if there are no requests for the elevator cab to move to a specific location; signaling a semiconductor switch to connect a renewable energy source to a regenerative motor drive if it is determined there are no requests received to operate the elevator cab in a specific alternative mode; and absorbing regenerative power produced by the renewable power source until the elevator control system receives a request to enter passenger operation mode. Additional processes are provided for multiple car and multiple renewable source embodiments.