Hydroelectric plants in the U. Given the many decades that have passed since the heyday of hydro plant development in the U. Rehabilitation of existing hydroelectric generating facilities is big business in the U. There are many reasons utilities are taking on rehab and upgrading work. These include the need to deal with aging equipment, the opportunity to increase generation by using modern equipment and materials, changing operational parameters at many facilities, and even requirements arising during renewal of the Federal Energy Regulatory Commission operating license for a project.
Harnessing hydropower: Literature review
Articles about Hydropower | Department of Energy
The efficiency of turbines and generators has significantly increased over the last few decades. The overall efficiency of a hydropower plant can be optimized using digital controllers, for example. As hydro equipment ages, wear and tear affects the plant efficiency. Aging is accelerated by certain plant operational regimes such as start-stop cycles, abrasion due to large volumes of suspended solids like silt, and corrosion. All have an impact on the service life. High voltage electrical components such as cables, substations, and transformers, have a longer lifetime. Meanwhile, mechanical aging is a very slow process but nonetheless does affect the stationary parts of a turbine and generator, as well as structural elements like penstocks.
Hydropower Developments: New Projects, Rehabilitation, and Power Recovery
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