▁consists ▁of ▁a ▁p ump ing ▁cycle ▁similar ▁to ▁that ▁of ▁k ite ▁systems . ▁In ▁the ▁generation ▁phase , ▁the ▁pulling ▁force ▁increases ▁ 5 – 1 0 ▁times ▁due ▁to ▁the ▁Magn us ▁effect ▁of ▁a ▁spin ning ▁cyl inder ▁( a er ial ▁platform ). ▁Like ▁a ▁k ite , ▁the ▁pulling ▁force ▁produced ▁by ▁the ▁aer ial ▁platform ▁will ▁un wind ▁the ▁cable ▁and ▁generate ▁electric ity ▁on ▁the ▁ground . ▁In ▁the ▁recovery ▁phase ▁it ▁re w inds ▁the ▁cable ▁with ▁no ▁Magn us ▁effect ▁in ▁the ▁aer ial ▁platform . ▁ ▁Non - air bor ne ▁systems ▁Con cept ually , ▁two ▁adjacent ▁mountains ▁( natural ▁or ▁terrain - enabled ) ▁or ▁artificial ▁buildings ▁or ▁to wers ▁( urban ▁or ▁artificial ) ▁could ▁have ▁a ▁wind ▁tur bine ▁susp ended ▁between ▁them ▁by ▁use ▁of ▁c ables . ▁When ▁H A WP ▁is ▁c abled ▁between ▁two ▁mountain ▁to ps ▁across ▁a ▁valley , ▁the ▁H A WP ▁device ▁is ▁not ▁air bor ne , ▁but ▁bor ne ▁up ▁by ▁the ▁cable ▁system . ▁ ▁No ▁such ▁systems ▁are ▁known ▁to ▁be ▁in ▁use , ▁though ▁pat ents ▁teach ▁these ▁methods . ▁▁ ▁When ▁non - c abled ▁brid ges ▁are ▁the ▁foundation ▁for ▁holding ▁wind ▁tur b ines ▁high ▁above ▁the ▁ground , ▁then ▁these ▁are ▁grouped ▁with ▁conventional ▁tower ed ▁tur b ines ▁and ▁are ▁outside ▁the ▁intent ▁of ▁H A WP ▁where ▁the ▁t ether ing ▁an ▁air bor ne ▁system ▁is ▁found ational