The present invention relates to a solar panel system, particularly a novel solar panel design to increase performance in a cost-effective manner. The present invention includes a solar panel assembly. The solar panel assembly includes a plurality of elongated solar electric module which includes a first transparent material and a second transparent material. In addition, a solar electric material is disposed between the first transparent material and the second transparent material. The solar electric module may include an elongated array of one or more solar electric cells. Additionally, each array of the one or more solar electric cells include at least one bi-facial solar cell.

The present disclosure generally relates to a fire-through aluminium paste composition to selectively fire through a passivation layer, and fired compositions thereof. In particular, the fire-through aluminium paste composition of the present disclosure comprises an aluminium component and a glass component, wherein the glass component comprises at least two glass frits. The present disclosure also relates to a processes for preparing a fire-through aluminium paste composition, and its use in the manufacture of a bifacial PERC solar cell.

Bifacial crystalline solar cells and associated solar panel systems are provided. The cells include a p-type crystalline silicon layer and a barrier layer. The panels include at least two rows of cells. The cells in each row are connected to one another in series. The rows are connected in parallel. A reflector is used to reflect light towards the underside of the panel. A long axis of the reflector is arranged to be parallel to the rows of cells.

Provided are N-type monocrystalline silicon double-sided solar cell and preparation method thereof. Preparation method includes following steps: S1: performing double-sided texturing to obtain N-type monocrystalline silicon with front surface and back surface having first textured structures respectively; S2: performing back-surface phosphorus diffusion doping to form back surface field; S3: removing winding plating and PSG on front surface and back surface, forming mask for protecting first textured structure of back surface on surface of back surface field, and manufacturing second textured structure on front surface of N-type monocrystalline silicon; S4: performing front-surface boron diffusion doping to form front-surface doped emitter junction layer; S5: after removal of mask, winding plating and BSG on front surface and back surface, depositing passivation antireflection layer on surface of front-surface doped emitter junction layer, and depositing passivation layer on surface of back surface field; and S6: preparing front surface electrode and back surface electrode.

The present invention relates to a solar panel system, particularly a novel solar panel design to increase performance in a cost-effective manner. The present invention includes a solar panel assembly. The solar panel assembly includes a plurality of elongated solar electric module which includes a first transparent material and a second transparent material. In addition, a solar electric material is disposed between the first transparent material and the second transparent material. The solar electric module may include an elongated array of one or more solar electric cells. Additionally, each array of the one or more solar electric cells include at least one bi-facial solar cell.

A portable solar photovoltaic (PV) electricity generator module comprises a plurality of smart power slat (SPS) units, each SPS unit comprising a plurality of solar cells electrically connected together based on a specified cell interconnection design, and, at least one power maximizing integrated circuit collecting electricity generated by the plurality of solar cells. The plurality of SPS units are mechanically connected such that the SPS units can be retracted for volume compaction of the module, and can be expanded for increasing PV electricity generation by the module. The module can be used as part of an electric power supply with a maximum power point tracking (MPPT) power optimizer, storage battery and leads to connect to a load. The load can be AC or DC.

In one aspect, a preparation method for a double-sided solar cell includes: preparing a semi-finished product of the double-sided solar cell, the semi-finished product including a silicon wafer, and a P-type doped layer, a front passivation layer, and a front anti-reflection layer that are sequentially formed on a front surface of the silicon wafer; providing an opening corresponding to a front finger on a front surface of the semi-finished product, the opening extending through the front anti-reflection layer and the front passivation layer in sequence and exposing a surface of the P-type doped layer; and coating a non-fire-through paste in contact with the P-type doped layer through the opening, sintering the paste, to form the front finger. This preparation method can increase the open circuit voltage of the double-sided solar cell, and improve the conversion efficiency of double-sided solar cell.

Various embodiments of mounting structures for solar photovoltaic (PV) modules and methods for constructing such mounting structures are described. A mounting structure is usable to secure PV modules in portrait orientation or landscape orientation. PV modules are secured to PV module support rails, which may be secured to purlins of a mounting structure using clamps. In some embodiments, self-adhesive grounding patches are used to establish electrical grounding paths in various embodiments of mounting structure.