Liebherr's Hybrid CranesTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoChristina Röder03/13/2013March 13, 2013German company Liebherr has developed a unit which recovers and stores energy when a crane lowers its load. It can be ordered with a crane, or attached seperately later.https://p.dw.com/p/17vUMAdvertisement