Storage Drop Storage Technologies Ltd. is an innovative company, which operates in the field of energy storage. Its products include Hydrop, which is used for power generation coupled with renewable energy such as solar and wind energies, CoolDrop, which is used for heat and cold generation for the industrial refrigeration market, and DropX, an air compressor based on liquid piston with air compressed by water. The company was founded on December 22, 1998 and is headquartered in Rehovot, Israel.