Global energy consumption is increasing at a dramatic rate and will likely continue to do so. The major source of energy is still a fossil fuel, which has resulted in the well-documented problem of global warming due to the emission of greenhouse gases from the burning of such fuel. Climate change and global warming are among the crucial and complex issues encountered by the world today, and they require an immediate solution. Technological innovation is the key to ensuring energy security without causing emissions and providing efficient cost-effective energy solutions.

 Based on this statement, explain the roles of Power Electronics in the renewable energy system.