Elevator system including a power storage device with a supercapacitor unit and a battery unit

An elevator system, comprising:

• an elevator car and a counterweight operable to be translated within a hoistway;
• a load bearing flexible member extending between the elevator car and the counterweight;
• a motor having a drive, which motor is operable to move the load bearing member and thereby drive the elevator car and counterweight within the hoistway, and wherein the elevator motor and drive are configured to selectively produce regenerative power;
• and
• an elevator control system that includes a power manager unit and a power storage device, wherein the power storage device includes a supercapacitor unit and a battery unit, and wherein the power manager unit is operable to selectively manage a flow of power between the power storage device and the motor drive, and a flow of regenerative power from the motor drive to the power storage device;
• wherein the power manager unit is further operable to selectively manage power flow between the supercapacitor unit and the battery unit.