On November 9, Shandong News Network reported: The runner of the world's largest single-unit-capacity 500 MW Pelton turbine unit, the "Dongfang Blue Lotus" (approximately 6.2 meters in outer diameter and about 80 tons in weight), independently developed by Dongfang Electric Machinery, has been shipped to the Qinghai-Tibet Plateau and will equip Unit 1 of the Datang Zala Hydropower Station (delivered on September 23 and selected as a First Set of Major Technical Equipment project by the National Energy Administration). Its development adopted a composite forged-and-welded structure of "central body forging + tail-fin additive manufacturing + external buckets die forging" and "laser + arc" additive manufacturing technology, compressing forging thickness by nearly one third. It is a case of engineering application of metal additive manufacturing in large hydropower equipment.