Hydroelectric projects generate electricity by harnessing the energy of flowing water, typically from rivers or dams. Water is directed through turbines, which spin and activate generators to produce electricity. This renewable energy source is considered environmentally friendly, as it reduces reliance on fossil fuels and lowers greenhouse gas emissions. These projects can vary in size, from small community systems to large-scale installations like the Three Gorges Dam in China. Hydroelectric power contributes significantly to the global energy supply, providing a stable and reliable source of electricity for homes and industries while promoting sustainable development.