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it is widely anticipated that other types of renewable resources, including wave energy, will need to be developed in order to meet more challenging targets beyond 2020. 

As with most renewable energy sources, wave devices have no emissions during generation but the energy associated with the construction of the device does have small associated emissions.

it is essential that the current demonstration schemes are successful, to reassure future investors. The most important objective is to deploy full-size demonstration schemes in order to gain greater confidence in the most developed technologies (as in the EU's Atlas project). 

it will be necessary to significantly improve the network connections to the electricity suppliers.

Wave power varies considerably in different parts of the world, and wave energy can't be harnessed effectively everywhere

Total Annual U.S. Incident Wave Energy 2,110 terrawatt-hours

The United States receives 2,100 terawatt-hours of incident wave energy along its coastlines each year, and tapping just one quarter of this potential could produce as much energy as the entire U.S. hydropower system

In addition to its abundant solar, wind and geothermal resources, the Pacific Northwest is also uniquely situated to capture the renewable energy of the ocean. Special buoys, turbines, and other technologies can capture the power of waves and tides and convert it into clean, pollution-free electricity. Like other renewable resources, both wave and tidal energy are variable in nature. Waves are produced by winds blowing across the surface of the ocean. However, because waves travel across the ocean, their arrival time at the wave power facility may be more predictable than wind. In contrast, tidal energy, which is driven by the gravitational pull of the moon and sun, is predictable centuries in advance.

The United States receives 2,100 terawatt-hours of incident wave energy along its coastlines each year, and tapping just one quarter of this potential could produce as much energy as the entire U.S. hydropower system

The Unit

At this rate, many experts believe that solar energy is not efficient enough to be economically sustainable given the cost to produce the panels themselves.

Tidal power is the only technology that draws on energy inherent in the orbital characteristics of the Earth–Moon system, and to a lesser extent in the Earth–Sun system.

A tidal generator converts the energy of tidal flows into electricity. Greater tidal variation and higher tidal current velocities can dramatically increase the potential of a site for tidal electricity generation

Boats not able to see the generators could cause a potential collision hazard and pose problems for the safety of both those on board and to the wave energy generator.

Wave energy boasts many advantages such as its low cost, zero to no pollution, and a large energy output.

Wave energy generators can cause noise pollution and be a nuisance to those living close to them, according to the UK Department for Business Innovation & Skills. The noise emanating from a generator, though, is often covered up by the noise of the waves.

Wave energy generators can cause noise pollution and be a nuisance to those living close to them, according to the UK Department for Business Innovation & Skills. The noise emanating from a generator, though, is often covered up by the noise of the waves. Wave power generators can also be unsightly to some.

Wave energy generators can cause noise pollution and be a nuisance to those living close to them, according to the UK Department for Business Innovation & Skills. The noise emanating from a generator, though, is often covered up by the noise of the waves. Wave power generators can also be unsightly to some. Floating devices are large snake-like machines floating parallel to one another throughout an area close to the seashore. Some may find them offensive or unpleasant.

Severe Weather like Storms and Typhoons can be quite devastating on the Wave Power Equipment especially those place on the Sea Floor.

This is a disadvantage which is common to all  the 3 types of Water based Energy that is Tidal, Hydro and Waver Energy. Some forms of Energy are just better suited to some places.

Wave Power generate power quite far away from the consumption of electricity. Transportation of Wave Energy can be quite cumbersome and expensive. Some Wave Energy Generators are converting power at the bottom of the ocean or far away from the shoreline. Moving that power towards where it is used can be difficult.

The sight of wave generators around the shoreline can look quite ugly and cause loss of tourism potential around shorelines. Also local residents can have problems even with wave power equipment which is not far offshore. The Cape Wind Energy project off the shore of Massachusetts has been delayed by over 10 years as it has drawn serious objections from the owners of coastal homes about loss in their property values.

A Wave Power Plant can cost around$6-10 million million to be spent in building 1 Megawatt.

Waver Energy does not require any fuel like most other sources of energy