Gagarumin karuwar buƙatun tsarin samar da hasken rana na rufin gida a cikin gine-ginen zama don adana kuɗin da ake samu akan makamashin lantarki, haɓaka yanayin rayuwa a tsakanin mutane a duk faɗin duniya, haɓakar samun kuɗin da za a iya zubarwa tsakanin mutane, da ci gaba da fasaha ...
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