Sa’dullayev Tuymurod Mardullo oglu, Taniyev Mirzohid Khurramovish. OPERATIONAL CHALLENGES AND PERFORMANCE DEGRADATION PATTERNS IN MODERN WIND ENERGY SYSTEMS: A COMPREHENSIVE ANALYSIS OF GRID INTEGRATION AND MAINTENANCE ISSUES. ReFocus [Internet]. 2025 Jul. 6 [cited 2025 Dec. 21];4(6):54-9. Available from: https://refocus.uz/index.php/1/article/view/1674