▁course ▁of ▁a ▁normal ▁ 2 5 - year ▁lifetime ▁is ▁expected ▁to ▁experience ▁a ▁number ▁of ▁light ning ▁strik es ▁throughout ▁its ▁service . ▁The ▁range ▁of ▁damage ▁caused ▁from ▁light ning ▁strik es ▁goes ▁from ▁merely ▁surface ▁level ▁sc orch ing ▁and ▁crack ing ▁of ▁the ▁l amin ate ▁material , ▁to ▁ru pt ures ▁in ▁the ▁bla de ▁or ▁full ▁separation ▁in ▁the ▁ad hes ives ▁that ▁hold ▁the ▁bla de ▁together . ▁It ▁is ▁most ▁common ▁to ▁observe ▁light ning ▁strik es ▁on ▁the ▁tips ▁of ▁the ▁bl ades , ▁especially ▁in ▁ra iny ▁weather ▁due ▁to ▁the ▁co pper ▁w iring ▁within ▁attract ing ▁light ning . ▁The ▁most ▁common ▁method ▁to ▁combat ▁this , ▁especially ▁in ▁non - con duct ing ▁bla de ▁materials ▁like ▁G FR P s ▁and ▁C FR P s , ▁is ▁to ▁add ▁light ning ▁" arr esters ", ▁which ▁are ▁merely ▁met all ic ▁w iring ▁that ▁provides ▁an ▁un inter rupted ▁path ▁to ▁the ▁ground , ▁ski pping ▁the ▁bl ades ▁and ▁g ear box ▁entirely ▁to ▁eliminate ▁the ▁risk ▁of ▁damage ▁in ▁those ▁components . ▁ ▁Bla de ▁rec y cling ▁ ▁The ▁Global ▁Wind ▁Energy ▁Council ▁( G WE C ) ▁predict s ▁that ▁wind ▁energy ▁will ▁supply ▁ 1 5 . 7 % ▁of ▁the ▁world ' s ▁total ▁energy ▁needs ▁by ▁the ▁year ▁ 2 0 2 0 , ▁and ▁ 2 8 . 5 % ▁by ▁the ▁year ▁ 2 0 3 0 . ▁This