Core Viewpoint - China's "artificial sun" project, the BEST, is expected to be completed by 2027 and aims to be the first device in human history to achieve fusion power generation [1] Group 1: Project Development - The BEST project in Hefei, Anhui, has achieved a key breakthrough with the successful installation of the 400-ton Dewar base, marking a new phase in the construction of the main project [2][4] - The Dewar base, measuring approximately 18 meters in diameter and 5 meters in height, is the heaviest component of the BEST main system, designed to support a total weight of about 6,700 tons [6] - The installation precision of the Dewar base is critical for the stability and safety of the entire project, with a positional deviation not exceeding 2 millimeters [9] Group 2: Technical Achievements - The Dewar base was developed by a project team led by the Hefei Institute of Plasma Physics, overcoming key technologies such as high-precision forming and welding, millimeter-level deformation control, and high vacuum sealing [11] - The completion of the Dewar base installation signifies the beginning of the installation of major components like magnets and vacuum chambers, which will eventually create a vacuum environment for the operation of the Tokamak [11] Group 3: Future Prospects - The BEST project is expected to be completed in two years and will demonstrate fusion energy generation for the first time globally [12][13] - By 2030, there is a potential to light the first lamp using nuclear fusion energy [13]