February 07, 2020
Embodiments of the invention solve at least the technical problem of enabling low-cost and reliable electrical interconnections among solar roof tile modules. More specifically, each solar roof tile module can include, on its back cover, two external electrical contacts, one for each polarity. In some embodiments, an external electrical contact can be in the form of a metallic plug inserted inside a through hole formed on the back cover of the tile module. In some embodiments, a surface of the metallic plug can be textured to ensure reliable electrical coupling between the metallic plug and the internal electrical contacts of the tile module. Moreover, the other surface of the metallic plug can be substantially on the same plane as the exterior surface of the back cover, thus enabling a simplified electrical coupling between the metallic plug and a junction box attached to the back cover.
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