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FASTENING DEVICE

Absstract of: WO2025149362A1

The invention relates to a fastening device (10) for fastening at least one frame (38), preferably a module frame of a solar or photovoltaic module, to a framework (36), preferably a mounting rail, having a holding body (12) with a frame placement region (14) and a framework placement region (16), a fastening body (20) with a fastening portion (22) extending underneath the frame placement region (14) and/or the framework placement region (16), and a fixing element (30), preferably a screw, which is arranged in or on the fastening portion (22) of the fastening body (20).

AN ULTRA-THIN TRANSMISSIVE CADMIUM ALLOY SOLAR CELL

Absstract of: WO2025144533A1

An ultra-thin transmissive cadmium (Cd) alloy solar cell is provided. The ultra-thin transmissive cadmium (Cd) alloy solar cell includes a substrate section, a conductive section, a window section, and an absorber section. The absorber section includes a transmissive cadmium (Cd) alloy and a seven hundred (700) or less nanometer (nm) section thickness. The ultra-thin transmissive cadmium (Cd) alloy solar cell includes a percent (10%) transmissivity for portions of a first irradiance wavelength range between three hundred fifty (350) nanometers (nm) to approximately eight hundred twenty-five (825) nanometers (nm). The ultra-thin transmissive cadmium (Cd) alloy solar cell includes a sixty-five percent (65%) transmissivity for portions of a second irradiance wavelength range between to approximately eight hundred twenty-five (825) nanometers (nm) to one thousand two hundred (1200) nanometers (nm).

SOLAR CELL, METHOD FOR PREPARING SAME, AND PHOTOVOLTAIC MODULE

Absstract of: EP4770345A1

0001 Provided are a solar cell, a method for preparing the same, and a photovoltaic module. The solar cell includes a silicon substrate, a tunneling passivation contact structure, and a second electrode. The silicon substrate includes a first surface and a second surface arranged opposite to the first surface. The second surface includes first regions and second regions that are alternately arranged. A tunneling passivation is disposed on the second surface. A projection of the tunneling passivation contact structure on the second surface of the silicon substrate is located within the first region. The tunneling passivation contact structure includes a tunneling layer in direct contact with the silicon substrate, a second doped layer disposed on the tunneling layer, and a blocking layer and a third doped layer that are sequentially disposed on the second doped layer. The second doped layer, the third doped layer and the silicon substrate contain impurities of same conductive type. The second electrode is disposed in the second region and in contact with the third doped layer. The solar cell of the present disclosure can reduce parasitic absorption on the back surface of the cell and increase a current, without affecting contact performance between the electrode and the doped layer on the back surface, thereby improving a cell efficiency and bifaciality and enhancing a process window.

BUILDING-INTEGRATED PHOTOVOLTAICS SYSTEM AND PREPARATION METHOD

Absstract of: EP4768459A1

Disclosed in the present invention is a building-integrated photovoltaics system, comprising a back plate layer, a photovoltaic cell layer, and a facing layer from inside to outside. The facing layer comprises, in percentage by weight, 30-40% of a hydraulic material, 30-50% of natural calcium carbonate, 7-16% of an acrylic emulsion, 5-12% of glass fiber powder, 0.1-0.5% of a silane coupling agent, 0.1-0.5% of an acrylic light diffusing agent, and 5-20% of water. In the present invention, the building-integrated photovoltaics system is mounted on a building external wall, a building roof and a roof extension, can implement solar power generation, and is integrated with a building; external colors and patterns match the building; and the function of solar power generation is achieved while the aesthetics of the building is not damaged.

SOLAR CELL AND MANUFACTURING METHOD THEREFOR

Absstract of: EP4770337A1

0001 Provided are a solar cell and a manufacturing method therefor. The solar cell includes a silicon substrate (10) including a first surface (S1) and a second surface (S2) opposite to each other, where the first surface (S1) includes a first region (S11) and a second region (S12) arranged at intervals, a tunneling passivation structure is provided on the first region (S11), a passivation structure is provided on the second region (S12), a first electrode (41) electrically connected to the tunneling passivation structure is further provided on the first region (S11), and the width W of the first region (S11) is greater than the width L of the first electrode (41).

DEEP LEARNING-BASED PHOTOVOLTAIC PANEL DEFECT DETECTION DEVICE, AND METHOD THEREFOR

Absstract of: EP4769941A1

0001 The present disclosure relates to a method and device for detecting defects in a photovoltaic panel by using an image of the photovoltaic panel, and according to the method and device for detecting defects in a photovoltaic panel, it is possible to determine whether a photovoltaic panel is defective more quickly and accurately during a photovoltaic panel production process, by using a pre-trained artificial intelligence unit to detect defects, which are undetectable in an electroluminescence (EL) image, in an optical image of a photovoltaic panel rather than an EL image, and classify the detected defects by type, and measuring sizes of the defects to finally determine whether the photovoltaic panel is defective, thereby providing advantageous effects of shortening process time and reducing cost losses by improving a defect detection rate.

PID REPAIR CIRCUIT AND PID REPAIR METHOD FOR PHOTOVOLTAIC SYSTEM

Absstract of: EP4769939A1

0001 Provided are a potential induced degradation (PID) repair circuit and PID repair method for a photovoltaic (PV) system. The PV system includes a solar cell module, an energy storage module, a direct current direct current (DCDC) boost circuit, and an inverter circuit; the PID repair circuit includes a DC power supply and an isolation circuit; after the DC power supply is processed by the isolation circuit, one end of the isolation circuit is connected to a positive terminal PV+ or a negative terminal PV- of the solar cell module, and another end of the isolation circuit is connected to a ground terminal PE; and a first switch is disposed on a connection path between the solar cell module and the energy storage module; PID repair is performed on the solar cell module by applying a negative voltage to the positive terminal PV+ of the solar cell module or a positive voltage to the negative terminal PV- of the solar cell module via the DC power supply; and a connection path between the solar cell module and the inverter circuit is disconnected during the PID repair. This application can prevent an internal short circuit caused by the inverter circuit during the PID repair, thereby effectively guaranteeing the operational safety of the PV system.

A BACK-CONTACT SOLAR CELL, BACK-CONTACT SOLAR CELL ASSEMBLY, AND PHOTOVOLTAIC SYSTEM

Absstract of: EP4770346A2

The present application applies to the field of solar cell technology and provides a back-contact solar cell, back-contact solar cell assembly, and photovoltaic system. The groove area and non groove area are alternately disposed on the shady face of silicon chip. At a predetermined position in the groove area, a first doped layer has an extending portion that extends above the groove area, and the second doped layer has a wrapping portion which covers and recombines with the first surface of the extending portion. No silicon wafer part is provided on the side of the position where the wrapping portion recombines with the first surface, and the edge recombination generated by the boundary area between them has a relatively narrow impact range, which can effectively improve the efficiency with a higher filling factor. Meanwhile, the recombination between the wrapping portion and the first surface of the extending portion can provide a certain recombination area to increase the current during electrical injection, and improve the repair efficiency and effectiveness during the subsequent repair of back-contact solar cells.

SOLAR CELL AND PREPARATION METHOD THEREFOR

Absstract of: EP4770347A1

The present disclosure provides a solar cell and a preparation method therefor. The solar cell comprises a silicon substrate; the silicon substrate comprises a first surface and a second surface which are oppositely arranged; a diffusion layer is formed on the first surface of the silicon substrate; the first surface comprises first areas and second areas distributed at intervals; the second surface comprises third areas and fourth areas distributed at intervals; each first area is provided with a first tunnel passivation structure and a first electrode; and each third area is provided with a second tunnel passivation structure and a second electrode.

SYSTEMS, SOLAR ARTICLES, AND METHODS COMPRISING A STRUCTURED PROTECTIVE FILM

Absstract of: WO2025040970A1

A system is described comprising a solar article (110) that comprises a first major surface (that faces the sun during daytime use) and an opposing second major surface. The protective film (150) comprises a first major surface (that faces the sun during daytime use) and an opposing second major surface. The first major surface of the solar article (110) and/or the opposing second major surface of the protective film (150) comprises surface structures (153). The surface structures (153) are microstructures and/or nanostructures having at least two dimensions less than 1 mm. The structures can provide/maintain an air interface (175) between the first major surface of the solar article (110) and the second major surface of the protective film (150). Also described is a structured polyolefin film suitable for use as a protective film (150) for a solar article, as described herein and a method of improving the efficiency of a solar article.

ARTICLE WITH A SUBSTRATE AND MULTILAYER COATING ON THE SUBSTRATE AND SOLAR PANEL INCORPORATING THE ARTICLE

Absstract of: WO2025042702A1

An article is described herein that comprises: a substrate comprising a first major surface and a second major surface; and a multilayer coating disposed on the first major surface of the substrate, the multilayer coating comprising at least one period of a layer of low refractive index material and a layer of high refractive index material. The article exhibits a prime surface average reflectance of less than or equal to 0.550% across an entire wavelength range of from 600 nm to 750 nm. A solar panel including the article as a cover glass disposed over an array of photovoltaic cells.

RETRACTABLE, ADJUSTABLE PHOTOVOLTAIC BIOCLIMATIC PERGOLA

Absstract of: EP4768675A1

The invention relates to a retractable, adjustable photovoltaic bioclimatic pergola comprising a set of slats (1) incorporating photovoltaic cells (2) designed to capture solar radiation and convert it into electrical energy. The slats are connected to a transmission system (3) enabling controlled movement.

AUTOMATED MAINTENANCE SYSTEM FOR SOLAR COMPONENTS

Absstract of: US2025070712A1

0000 An automated maintenance system for solar components is disclosed. The system includes a condensate reservoir, a wiping element, a motor, and a fluid delivery element. The fluid delivery element is configured to transport a fluid from the condensate reservoir to a solar component, and the motor is configured to operate the wiping element via a controller. The system is designed to clean solar components automatically, without the need for manual intervention. The system is efficient, cost-effective, and environmentally friendly.

Dispositivo de seguimiento

Nº publicación: CO2026005382A1 30/06/2026

Applicant:

SL RACK GMBH [DE]
SL RACK GMBH