Abstract: A system includes a plurality of photovoltaic modules installed on a roof deck and arranged in an array, and at least one jumper module electrically connecting a first subarray and a second subarray of the array. The jumper module includes a first end and a second end, a sleeve extending from the first end to the second end, and at least one electrical cable. The sleeve is sized and shaped to receive the at least one electrical cable. The at least one electrical cable electrically connects the first subarray to the second subarray.

Abstract: A rapid shutdown device for rapidly de-energizing a photovoltaic module system is disclosed. The rapid shutdown device includes power lines connected to a photovoltaic string of modules on a roof of a structure. A high voltage switch on a first power line is disconnected when the high voltage switch is open. The rapid shutdown device includes a gate drive circuit that receives an electronic photovoltaic string status signal associated with an operating status of the photovoltaic string. The gate drive circuit may determine that the operating status indicates the presence of a hazard based on the electronic photovoltaic string status signal. Based on presence of the hazard, the rapid shutdown device generates a high voltage switch command signal to cause the high voltage switch to open to disconnect the photovoltaic string from an electrical connection to a grid power supply, thereby enhancing protection of the string and safety for responders.

Abstract: A system, including: a plurality of photovoltaic modules installed above a roof deck, where the plurality of photovoltaic modules includes at least a first photovoltaic module and a second photovoltaic module, where each of the plurality of photovoltaic modules includes: a top surface; a bottom surface opposite the top surface; a plurality of solar cells; a first receptacle on the top surface, where the first receptacle has: a plurality of first non-conductive openings, and a plurality of first conductive members in the plurality of first non-conductive openings; and a second receptacle on the bottom surface, where the second receptacle has: a plurality of second non-conductive openings, and a plurality of second conductive members in the plurality of second non-conductive openings, where at least a portion of the second photovoltaic module overlaps at least a portion of the first photovoltaic module, where the first receptacle of the first photovoltaic module is in mechanical connection with the second recep