Rregarding "solar mid clamps" in 2023 primarily focused on technological patents and innovation, application practices, safety challenges under extreme weather, and the advancement of industry standards. Below is a consolidated annual news review.

Technological Progress: Patents and Product Innovation

In 2023, the field of PV module mounting clamps, especially mid clamps, saw active technological innovation and patent filings.

Trina Solar obtained a patent titled "A Photovoltaic System Connection Structure and Photovoltaic Module Frame" in 2023. The structure uses a serrated clamping surface design to secure the PV module frame, aiming to simplify installation steps and optimize the frame structure.

Canadian Solar (Atess) was granted a new utility model patent for "Mounting Clamps for Photovoltaic Modules and Photovoltaic Power Generation Systems." The core of this clamp is an adjustable opening-angle design, which helps improve installation stability, efficiency, and versatility.

Rixin Technology added a patent for a roof mounting clamp specifically for color-coated steel sheet roofs. The clamp can directly secure frameless PV modules to such roofs, eliminating the need for purlins, and features a simple structure, light weight, and high safety.

Mibet achieved application of its "Easy Color Steel Roof Clamp" tailored for the Japanese market. The clamp allows one-step installation, flexibly adapts to various roof tile types, and meets stringent local requirements for wind resistance (45 m/s) and snow load (150 cm).

Additionally, other PV-related companies such as Haida Rubber & Plastic introduced innovative products like short rail clamps. Notably, NAURA led the initiation of the first SEMI international standard for PV manufacturing fixtures (graphite boats) in 2023, promoting standardization at the industry level.

Application Practices: Major Projects and Markets

As a critical component of PV installation, mid clamps were used in several large-scale domestic and international projects in 2023.

Major Project Applications: The 35MWp distributed PV power generation project of Wuhu Xinxing Ductile Iron Pipes Co., Ltd. (Wuhu, Anhui) initiated a tender for support equipment in 2023, which explicitly included aluminum alloy clamps. The flexible-roof distributed PV project of Farasis Energy (Zhenjiang) was officially grid-connected in January 2023, utilizing flexible brackets and clamps for installation.

International Market Expansion: Xiamen Mibet successfully executed a 7.59MW rooftop PV project in Japan, providing complete solution designs including roof mounts and clamps for multiple factories of its client. Xiamen Rixin Technology's black quick-install mid clamps also received positive market response in Europe.

Safety Alerts: Tests Under Extreme Weather

Extreme weather events in 2023, especially typhoons, severely tested the reliability of PV clamps.

After Super Typhoon Doksuri (No. 5) passed in 2023, over 600 modules were reported damaged. An analysis pointed out that the affected power station was the only one installed using "flexible brackets and clamps," raising doubts about its resistance to strong winds.

In September 2023, when Typhoon Saola hit Hong Kong, solar panels were blown off from a rooftop. An installation company负责人 (manager) suggested the problem might have been that the clamps did not sufficiently secure the solar panels, causing them to shift under high winds.

Additionally, a PV installer in Maine, USA, fell from a height of over 7.9 meters (26 feet) and died, highlighting the importance of on-site safety practices.

In-Depth Analysis: Safety, Installation, and Technical Insights

Industry media in 2023 provided in-depth analysis regarding the safety of PV clamps.

Safety and Standards: In July 2023, the U.S. Consumer Product Safety Commission (CPSC) recalled approximately 2,100 GAF Timberline solar shingles due to a fire hazard, though the direct cause was not the clamps themselves. Meanwhile, the industry has clear torque specifications for mid clamp installation, and experts recommend using torque wrenches and calibration tools to avoid clamp damage or loosening due to over- or under-tightening.

Professional Media Analysis: Solar Builder Magazine published an article in January 2023 explaining in detail the differences between mid clamps and end clamps, selection considerations, and installation tips, emphasizing that they are the most critical components for securely attaching PV modules to the mounting system.