What are some advantages to the use of hydrokinetic energy? What might be some disadvantages?

Answer:

Hydrokinetic energy uses waves, tides, or currents, so it is renewable and can produce electricity with little greenhouse gas emission during operation. It may also avoid some impacts of large dams and reservoirs. Disadvantages can include high installation and maintenance costs, limited suitable locations, variable energy output, and possible disruption to aquatic organisms, habitats, or navigation.