Antaisolar, a provider of PV mounting structures and tracker solutions, showcased its range of tracker and rooftop mounting solutions at SNEC 2025, aligning with the latest trends in China’s PV installation market. The major highlight at its stall was the upcoming AT-Spark 1P solar tracker, which is expected to be launched sometime in September/October of this year. Also on display was the company’s commercially available TAI-Universal 2P tracker. 

Adrian Eve, Senior Sales Manager for PV Mounting System Solutions at Antaisolar, provided a brief overview of the displayed products to Shravan Chunduri, Head of Technology at TaiyangNews, during a visit to the company’s booth during the event. 

AT-Spark 

Eve highlighted the prototype of the AT-Spark series tracker. According to the product specifications, it is a multi-slew drive-based single-axis independent 1P tracking system. Without sharing the technical details, Eve highlighted a few standout features of the upcoming model: lightweight and robust, adaptability, and smart protection. 

Antaisolar has replaced traditional round or rectangular-shaped torque tubes with an octagonal-shaped tube, featuring large R-angles, for this tracker. This innovative design enables the structure to endure double twisting forces or torsion, stemming from extreme environmental forces, compared to its traditional counterpart. According to the company, the design also facilitates enhanced stiffness and strength per unit weight of the structure, while improving product durability with optimized material utilization. In addition, its octagonal spindle enables multi-point drive, meaning torque is distributed across multiple points, reducing mechanical stress. This, in turn, expanded the lightweight tracker’s operation and maximum wind speed thresholds, beyond which the system will be switched to a stow position. 

This product also features Antaisolar’s patented double-ball bearing concept, as opposed to the traditional bolt adjustment concept. During installation over undulating land, thanks to the universal rotation characteristics of the double-ball bearings connecting the torque tube, the system self-adjusts to the slope, eliminating the labor-intensive and time-consuming manual process. Meanwhile, the main shaft assembly and disassembly become easier due to the clamshell bearing seat design and the detachable nature of the bearing, added Eve. However, ensuring a reliable tracker installation, its snap-on ball-bearing structure securely connects the shaft and bearing. 

Alongside quick and reliable installations, the SmartTrail solution, an integrated intelligent tracking control system, features 4 extreme-weather protection strategies. These include high snowfall and strong wind flow. It also incorporates solar irradiance optimization, leveraging its embedded intelligent algorithms. 

AT-Spark is expected to be commercially available between September and October 2025, says Eve.  

TAI-Universal 

The TAI-Universal tracker on display, suitable for a 2-in-Portrait (2P) configuration, can operate on a horizontal single-axis orientation. Designed for a tracker length of up to 70 meters, this product can accommodate a maximum of 4 strings or a maximum of 120 modules rated for 1,500 V DC, according to the datasheet. Its spherical torque tube, driven by a 24 V DC motor, features a synchronous multi-point slew drive mechanism, which supports a wide tracker rotation angle of +/- 60°. For undulated installation sites, this product has been engineered to tolerate a north-south (N-S) slope of up to 20%, enhancing the flexibility for PV developers in site selection. 

Controlled by a single integrated intelligent controller per tracker, this tracker can automatically bring the whole system to a 5° stow position as needed by real-time operational requirements. In addition to normal tracker rotation, by employing the integrated backtracking functionality, this system can maximize generation during low-light conditions, including dawn and dusk. According to the datasheet, the system can be operated in wind speeds of up to 55 m/s. 

The company offers a 10-year warranty for the tracker’s drive and control system, and a 15-year warranty for the structure. 

Mounting Solutions 

The company showcased a wide range of rail and hook systems, made of aluminum and suitable for either portrait or landscape installations over flat or tile-type roofs. The company also displayed its metal roof-compatible mounting solutions, which are popular in Europe, Asia, and the UK, noted Eve.  

He also highlighted Antaisolar’s balcony PV solution during the conversation.