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Tidal Power is very efficient. It harnesses around 80-85% of the kinetic energy from the tides. Water is 1000x as dense as air, so this is a more efficient method than air turbines. No energy is required to operate tidal turbines, only to set them up.
Tidal energy will most likely be used to replace:
It is not as destructive on the environment as these types of energy sources, nor as dangerous.
This type of energy will not be able to completely replace the more conventional methods used today, but it may be used in countries with available coastline.
Tidal energy is extremely efficient over time, but the initial implementation is extremely expensive. It can range anywhere from 4 million dollars to set up a 65 kW site, to 11 million for a 1.2 MW site, BUT after that, it costs no money to run, and one barrage can last up to one hundred years.
It would start out being costly for consumers: 11-25 cents/kWh, and end up fairly cheap once widely used: 5-7 cents/kWh
Tidal Stream: The kinetic energy of water being extracted from the current
Tidal Range: Difference in height between the high and low tide
This type of power does not produce any type of emissions, so it will not hurt the atmosphere. On the other hand, Tidal Generators can hurt the wildlife that are around them. They also have an adverse effect on the tides, slowing them down sometimes.
They will take up real estate and
block waterways in some cases.
A 500 kW tidal stream plant was deployed 40 meters deep off the coast of Scotland in 2011. Within five months, it had delivered 100 MWh.
The use of fossil fuel is not only horrible for our planet, as everyone is aware, but will one day have completely run out.
The way to put a stop to this harm and ensure the availability of an energy source for the future is to embrace renewable energy, or alternative energy sources.
Tidal energy is a renewable source with no end in sight, and makes no global environmental impact.
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