Pro or Con?
forms of tidal energy will be more expensive to manufacture
Con
True or False:
Tidal turbines are disruptive to the ecosystem
False
What is a tidal barrage?
low walled dams that look more like traditional hydropower dams
Is a tidal fence above water or underwater?
How much energy would a tidal plant or 61 turbines produce?
Up to 400 mega watts of energy from high-speed currents in the area.
Tidal turbines,barrages, and fences are the most efficient way to harness tidal energy
Pro
What is a tidal turbine?
An underwater windmill that uses moving water as energy instead of wind
Where are tidal barrages installed?
They are installed in inlets secured to the seafloor
How do tidal fences generate electricity?
The energy from the currents pushes the turnstile blades which are connected to a generator (which generates electricity)
How many prototypes are currently in use?
3
Since water is denser than air, water turbines need to be much stronger than wind turbines
Con (they will be more expensive)
Where does the electricity produced from a tidal turbine go?
it goes through a cable to a power distribution center onshore
Where are tidal barrages located and why?
They are located at the sea floor to let water flow through, turning with the moving tides
Do tidal fences have an impact on the surrounding ecosystem?
They have very little impact
~ answer as a percentage ~
How much energy use could potentially be generated from tidal energy in the future?
10%
The flow of the tides doesn’t always match the amount of energy consumption for the time of day
Con
How do tidal turbines work? (explain)
The water current pushes against the turbine, which makes the blades spin and generate power.
How do tidal barrages work?
the gates are used to create a reservoir on one side slightly above the water so the tides hit and spin the turbines (which generates power)
Where are tidal fences installed?
They are usually installed between land masses in things like inlets and fast-moving streams.
~ Yes or No? ~
Do tidal fences require the same concrete structure that tidal barrages do?
No
we wouldn't be dependent on fossil fuels
Pro
How do tidal turbines affect the ecosystem and environment?
They don't. The blades move slowly to avoid collision damage with sea animals and they don't produce any noise pollution.
Yes. Sea creatures that live on the ocean floor won't be able to pass through
What is a tidal fence?
~Any of these answers are correct~
A hybrid between tidal barrages and tidal turbines
A vertical turnstile that is made into a ‘fence-like’ structure. Instead of spinning like a propeller, tidal fences spin like a turnstile.
~ one-word answer ~
Tidal energy is a form of...