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Seawater Power Station
Seawater Power Stations, or Multipurpose seawater power stations (MP-SPS), are experimental power stations which serve multiple purposes. Typical MP-SPS designs include components of wave or tidal power alongside pumped hydroelectric energy storage. MP-SPS concept designs have also included on-site solar and/or wind power, as well as desalination equipment. These power stations aim to take advantage of multiple renewable/alternative resources that are present near the shoreline.
MP-SPS are optimized for active continental margins where there is a rapid elevation gain right off the shore. This rapid elevation gain allows for more pumped hydroelectric storage capacity, because the higher the seawater is pumped, the faster it will flow, increasing downstream turbine output. Space requirements are also paramount when designing these systems: pumped hydro storage capacity is also dependent on the size of the upper reservoir (higher volumes of seawater can produce more energy). The lower reservoir must be protected as well, so as to keep marine life from entering the system.
MP-SPS generating capacity is determined by the wave, tidal, solar, or wind resource in the area. Designs sho
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