Detailed text transcripts for TV channel - DW - 20181017:04:45:00
And more steady at that height. their development laboratory is on the campus of the technical university of berlin. the engineers started experimenting six years ago with fabric kites. when the kite goes up the rope turns the generator drum and generates electricity. then the kite is pulled in again which consumes very little power it's like a yo yo going up and down. over all that creates a surplus of electricity. most of their time is spent doing calculations or in the workshop. they've built the kite and all the technology themselves and they're always having to redesign and optimize. as a...
Source: archive.org