In the case of hydropower plants, we rarely talk about the total dismantling of a facility, but rather about a modernization of structures such as dams and pipelines. The elements that need to be changed most often are the hydraulic turbines that operate as generators, transforming the power of water into electricity. The lifespans of these turbines range from 40 to 80 years, but sometimes they can be replaced earlier if new, more efficient technologies become available. Some large hydropower plants have already been running for more than 120 years and are still fully operational. In other cases, however, climate change – with the increasing frequency and severity of droughts or the reduction in available water it can bring – has led to the closure of plants.