Big Sun is the second company in the survey exclusively focused on dual-axis tracker (DAT) systems, with its AI iPV Tracker supporting both crystalline-silicon and thin-film modules
The tracker uses a 1P × 750 V configuration for 15 modules and integrates features such as backtracking
Big Sun claims its DAT architecture, when combined with bifacial modules, can increase annual energy generation by 45% to 100%
Big Sun Energy Technology Inc. is a new entrant to the TaiyangNews Market Survey on Solar Trackers. It is the second company on our list that exclusively focuses on dual-axis tracker (DAT) systems, with its product called AI iPV Tracker. The company entered into the solar business in 2006 and introduced its dual-axis tracker to the market in 2014. This product supports most utility-scale crystalline-silicon modules and thin-film products.
The tracker accommodates 15 modules arranged in a 1P × 750 V configuration, measures 5.67 m in length and 6.83 m in width, and has a total system weight of 1,135 kg. The elevation height is specified as 3.18 m. The module mounting is embedded, and the system is engineered from Q235 hot-dip galvanized steel with 70 μm coatings. The tracker supports multiple foundation options, including I-beam and concrete foundations, cement piling, driven piles, an H-beam base with ground screws, and standalone ground screws.
The AI iPV Tracker is powered by 2 × 25 W AC motors. The system is designed for an operating temperature range of -40°C to +80°C, and supports a GCR of 40%. It includes an auto-stow function that activates when wind speeds exceed 34 m/s and provides operational stability up to 149-158 km/h. Big Sun specifies backtracking capability, along with gravity-based sensing for solar-tracking adjustments. It is equipped with LoRaWAN-based wireless communication and supports hybrid connectivity via radio and RS-485 cable. Safety features include a storm-position mode and nighttime stowing functionality.
Big Sun relies on its in-house ‘iPVita’ energy management system for real-time supervision and analytics. The company states that online training and commissioning are included, while PE-stamped structural drawings are provided optionally. As a key differentiator, Big Sun highlights that its dual-axis tracking, combined with bifacial modules, can boost annual generation by 45% to 100% compared to fixed-tilt systems, resulting in lower LCOE across diverse site conditions.
The AI iPV Tracker carries a 5-year structural warranty and 1-year coverage for both the motor and electronics. This tracker is distributed globally, and its delivery time is 2-3 months.
The text is an edited excerpt from TaiyangNews’ Market Survey on Solar Trackers 2026, which can be downloaded for free here.
