There are nano-engineered designs, which at least have been analyzed theoretically, that show the potential to be very lightweight, very inexpensive, very efficient, and we'd be able to actually provide all of our energy needs in this renewable way.
Există design-uri ce folosesc nano-inginerie, care cel puţin au fost analizate teoretic, care au calitatea de a fi foarte uşoare, foarte ieftine, foarte eficiente, şi chiar am reuşi să satisfacem toată cererea de energie în acest mod regenerabil.