FREE covers the following topics:

• Renewable energy sources implementation in archipelagic areas
• Renewable energy source and system, such as biofuel, biomass, geothermal energy, hydropower, solar energy, wind power, etc
• Application of renewable energy source and system
• Novel energy conversion for renewable energy source and system
• Artificial intelligent studies in renewable energy source and system
• Future direction of renewable energy source and system
• Sustainable and clean energy issues
• Policies and strategies for renewable energy source and system
• Integration of renewable energy sources
• Energy transition