Modern society requires an ever-increasing supply of energy to sustain economic growth and technological advancement. However, the depletion of fossil fuels, coupled with environmental pollution and climate change, has intensified the need for cleaner and more sustainable energy alternatives. Renewable energy systems have therefore become a vital pathway for meeting future energy demands.

To unlock the full potential of renewable energy systems, numerous technical obstacles must be overcome. These include optimizing energy capture from diverse and variable sources, integrating multiple conversion technologies for maximum efficiency, and ensuring resilient and adaptive system performance amid environmental and load uncertainties. Additionally, as renewables comprise a larger share of the energy portfolio, stable and compatible integration with power grids is critical for the reliable energy supply.

This Research Topic seeks to highlight innovative approaches in renewable energy harvesting, conversion, transmission, grid integration, and system-level energy scheduling and management. The objective is to advance both theoretical understanding and practical solutions that propel the evolution of next-generation renewable energy technologies.

Topics of interest for this issue include, but are not limited to:
- High-efficiency wave, tidal, wind, solar, hybrid, and other renewable energy harvesting technologies
- Structural design and topology optimization of energy harvesting devices
- Power take-off mechanisms and electromechanical energy conversion strategies
- Intelligent control of multi-source energy conversion and distribution
- AI-assisted structural design and co-optimization for energy harvesting systems
- Data-driven modeling and reinforcement learning for renewable energy system coordination
- Adaptive and predictive control methods for renewable energy systems
- Digital twin technologies for performance prediction and optimization of renewable energy systems
- Real-time simulation and hardware-in-the-loop testing for renewable energy systems
- Condition monitoring, predictive maintenance, and reliability engineering
- Grid interfacing and synchronization for variable renewable energy sources
- Energy scheduling and coordinated dispatch amid high renewable penetration
- Decentralized renewable energy management and edge computing applications
- IoT-based sensing and cyber-physical integration of renewable energy systems

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Emerging Technologies for Renewable Energy Harvesting, Conversion and Transmission