Energien, or energies, refer to the various forms of power that can be harnessed to perform work or produce heat. Common types include kinetic energy, potential energy, thermal energy, and electrical energy. Each type plays a crucial role in everyday life, from powering our homes to enabling transportation. Renewable energies, such as solar energy, wind energy, and hydropower, are derived from natural processes and are sustainable over time. These sources are increasingly important in reducing reliance on fossil fuels and minimizing environmental impact, contributing to a cleaner and more sustainable future.