GENEVA, March 8 -- HUANENG HAINAN POWER GENERATION CO., LTD. DONGFANG POWERPLANT (No. 15-2 Binhai South Road, Bashuo Town, Dongfang CityShengzhixiaxianjixingzhengquhua, Hainan 572600), 华能海南发电股份有限公司东方电厂 (中国海南省省直辖县级行政区划东方市八所镇滨海南路15-2号) filed a patent application (PCT/CN2025/114870) for "FREQUENCY AND MOMENT OF INERTIA CONTROL METHOD AND SYSTEM FOR ELECTRICAL GRID WITH HIGH PROPORTION OF NEW ENERGY" on Aug 14, 2025. With publication no. WO/2026/045948, the detai...