There are a number of different hydropower technologies, but at a fundamental level, all of them produce electricity using the force of moving water, be it from waves, tides, river flows or impounded reservoirs. In conduit projects, for example, small turbines – the devices that create electricity – are placed into existing infrastructure like irrigation canals. The water flows through the turbines, turning blades which are connected to a shaft that spins a generator and generates power that is then sent out to homes and businesses through transmission lines.