Hydropower is electrical energy generated by using water stored in dams and reservoirs. In the hydropower generation process, stored water is released to rotate turbines which in turn activates generators to generate electrical energy. In addition, some of the hydropower plants use pumped storage wherein water is pumped back into the dam and is used again to produce electricity. There are two types of hydro turbines, impulse and reaction, which are selected as per height, flow and volume of water.
Hydroelectric generators, with higher initial cost of installation, produces cost effective and clean energy with no greenhouse gas emissions. However, there are some limitations to this form of energy, as this is completely dependent on water and water bodies and drought can negatively impact the complete cycle. Furthermore, dams constructed to generate hydropower has the potential to damage river ecosystem.
Hydropower generates around 15% of world’s electricity, but there are some restrictions pertaining to expansion of this energy source as locations for building dams are limited. This is generating demand of utilizing ocean power, which includes river current, wave energy, tidal energy, offshore wind, salinity gradient energy, ocean current energy, and ocean thermal gradient energy.
Ocean can provide two types of energies: thermal energy from sun and mechanical energy from the tides and waves. Ocean thermal energy is used for electricity generation. Wave and tidal power has enormous potential to generate electricity, however, it is highly dependent on the topography of the area.
ASDReport.com offers extensive array of reports covering hydro energy industry. These reports cover technologies and submarkets of hydro energy like, hydropower, hydro-pumped storage plants, tidal energy, wave power, marine power, among others.