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Alternative Energy Tutorials on Tidal Energy

Tidal Power

tidal power

Tidal Power takes advantage of the kinetic energy stored in the movement of the incoming and outgoing tides using tidal stream devices, as well as the daily differences between the high tide and low tide at a given location using tidal barages. Tidal power is a non-polluting technology with a great potential to generate large amounts of electrical energy as the moving sea water drives underwater turbines with current technologies based around tidal range and tidal stream devices.

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Movements of Waves

ocean wave energy

The movements of waves in the oceans is energy and not the water itself which moves across the oceans surface. The water in the worlds seas and oceans is dynamic. The horizontal movement of water around the planet we call currents and waves, while the vertical rise and fall motion of the water we call tides. Its the winds blowing across the waters surface which causes the movement of waves to finally release their stored energy as they crash on the shoreline

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Environmental Impact of Wave Energy

wave energy

Harnessing the renewable energy resource of the ocean waves along coastlines has huge potential. Generating clean energy from renewable sources is one of the fastest growing industries around the world. Wave energy installations and devices which use concrete foundations or tethered lines to anchor themselves to the seabed has long raised concerns about their environmental impact to both sea life and shipping. The environmental impact of wave energy devices on marine species, such as whales, seals, dolphins and migratory fish is still unknown as the technology is still under development, but as with all renewable energy installations ecologists and engineers are working together to design wave energy devices that address both the environmental concerns and conservation issues

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Ocean Thermal Energy Conversion

ocean wave energy

Ocean thermal energy conversion is a marine based process which generates electrical energy by exploiting the temperature difference between the warmer surface water of the seas or oceans and the colder temperaturers of deeper waters. Ocean thermal energy conversion is a potential source of reliable renewable energy as its sunlight which heats the oceans water with many benefits to the environment creating no harmful emissions. OTEC heat recovert systems operate as cyclic heat engines which uses a working fluid warmed by the seawater to produce a vapour and the cold water to condense the vapour

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Tidal Fence Energy

tidal fence

Tidal Fence energy is a tidal energy technology which uses tidal currents to generate power. Tidal fence or tidal current technologies harness the energy of tidal currents and tidal streams to generate renewable, pollution free electricity on both the incoming and outgoing tides. Large underwater turbines are used for harnessing the tidal power to generate electricity. Reciprocating tidal current devices use hydrofoil type blades which move up and down as the tidal currents flow on either side of the blade

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Ocean Wave Power

wave energy

Ocean wave energy converters capture the energy contained in the oceans waves to generate electricity. There are a wide range of oceanic wave energy devices and technologies all of which use different ways to extract the energy from the movement of the waves, with each one having its own advantages and disadvantages depending on the depth of water and on the location, whether shoreline, near to the shore, or further out at sea. All wave energy technologies basically operate the same, a fixed prime mover captures the energy of the waves converting it into mechanical energy which is then converted into electrical energy before being sent to the shore

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Tides and Alternative Energy

tidal energy

Tidal energy devices and technologies use the power of the oceans to generate renewable forms of energy and are therefore important for a low-carbon future, Tidal energy devices do not alter the worlds climate or have have any harmful effect on human health or our ecosystem, and are less damaging to the environment than conventional means of energy generation. The ocean stores a vast amount of energy that can be harvested and tidal stream devices extract the energy from the oceans tides by using its continuously moving currents to rotate large underwater turbines

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Wave Energy Devices

ocean wave energy

Wave energy devices capture the kinetic energy of the oceans waves and convert it into electricity. Harnessing the free energy generated from floating ocean devices is one of the most promising renewable energy resources around our coastal areas as the technology behind the use of wave energy devices is becoming increasingly more efficient. Wave energy is one of the fastest growing industries around the world as the range and design of wave energy devices being developed increases yearly as more companies invent different ways of extracting the energy in the vertical movement of the oceans waves using ducks, snakes, bouys and columns

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Tidal Energy from the Sea

tidal turbine generator

Tidal energy technologies are constantly being developed to meet our ever increasing energy needs and reduce our fossil fuel footprint. Several technologies have emerged to harness the energy of the seas from hydrokinetic tidal turbines in open water to submerged tidal stream devices. While renewable forms of energy from our oceans are important for a low-carbon sustainable future, their positioning along the coastline and use must not have a negative impact on the local marine ecosystem, its wildlife or the environment. Tidal energy from the sea is a green technology and a promising sources of renewable energy globally

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Ocean Wave Energy

ocean wave energy

Ocean wave energy devices extract and harness the clean and renewable energy resources from the oceans waves. Ocean waves are created by wind energy blowing across the sea’s surface pushing the water to create the up-down motion of the surface water before crashing as waves onto the shoreline. Ocean wave energy devices use the movement of the waves and water to generate electricity. Many different types of wave energy converters have been developed to extract this marine energy being located either on the shore, nearshore or deeper waters offshore and have names such as oscillating columns, overtoppers, attenuators, point absorbers and surge converters

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