▁un ve iled ▁at ▁Universal ▁Studios ' ▁Col onial ▁Street ▁back lot ▁street ▁set . ▁Also ▁un ve iled ▁was ▁the ▁T es la ▁Power wall ▁ 2 , ▁a ▁home ▁battery ▁product ▁designed ▁to ▁store ▁sur plus ▁power , ▁either ▁from ▁the ▁t iles ▁or ▁from ▁the ▁grid . ▁Cons umer ▁Re ports ▁compared ▁the ▁estimated ▁economy ▁of ▁solar ▁roof s ▁to ▁traditional ▁roof ing . ▁ ▁In ▁August ▁ 2 0 1 7 , ▁limited ▁production ▁of ▁t iles ▁for ▁the ▁T es la ▁Sol ar ▁Ro of ▁had ▁begun ▁at ▁the ▁company ' s ▁Buff alo , ▁New ▁York ▁G ig af actory ▁ 2 ▁( G iga ▁New ▁York ). ▁In ▁January ▁ 2 0 1 8 , ▁T es la ▁announced , ▁after ▁testing ▁on ▁employees ' ▁roof s , ▁that ▁it ▁would ▁begin ▁installing ▁the ▁product ▁on ▁commercial ▁customers ' ▁homes ▁" with in ▁the ▁next ▁few ▁months ". ▁But ▁in ▁July ▁ 2 0 1 9 , ▁Gre ente ch ▁Media ▁reported ▁that ▁three ▁years ▁after ▁the ▁announ cement ▁of ▁the ▁solar ▁roof ▁t iles , ▁and ▁after ▁having ▁received ▁depos its ▁from ▁interested ▁home own ers , ▁T es la ▁had ▁connected ▁just ▁a ▁dozen ▁or ▁so ▁solar - integr ated ▁roof s ▁to ▁the ▁grid . ▁, ▁T es la ▁was ▁" st ill ▁t ink ering ▁with ▁the ▁product ▁three ▁years ▁after ▁announ cing ▁the ▁concept , ▁having ▁done ▁trial ▁install ations ▁with ▁two ▁different ▁iterations ▁so ▁far ." ▁The ▁second ▁version ▁(