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Wave and cialis from india Tidal Power

U.S. Could Get 15% of Energy from Wave and Tidal Sources by 2030


Two recent studies done by the generic cialis in canada Department of Energy found that wave, tidal and other water power sources could provide 15 percent of U.S. energy needs by 2030.

The reports called the "Mapping and Assessment of the United States Ocean Wave Energy Resource( PDF)" and "Assessment of Energy Production Potential from Tidal Streams in the United States (PDF)," calculated the maximum kinetic energy in waves and tides that could be used for energy production. Our country currently uses about 4,000 TWh of electricity per year and the studies show that waves and tidal currents could potentially generate up to 1,420 TWh of electricity per year, but not all of that energy could realistically be developed.

The DOE plans to release additional resource assessments for ocean current, ocean thermal gradients, and new hydropower resources later in the year so that we'll have a full picture of price cialis canada the water power potential in the U.S.

The findings have been incorporated into NREL's searchable U.S. Renewable Energy Atlas.

via DOE
 

Power Barge Could Provide Affordable Wave Power

Wave power is an intriguing but difficult proposition. It offers a fairly steady source of power that is more regular than many other renewable power systems, but the marine environment is particularly harsh and difficult to work in. A number of wave power projects have struggled in the past few years, which shows how difficult this approach can be.

A mobile wave power generating system proposed by Fraunhofer Center for Manufacturing Innovation would install wave generators along with banks of storage batteries onto ships or barges for portable wave power generation. The ship would go to sea and deploy its generators, and then return back to viagra uk cheap port and enter site levitra canada online pharmacy connect its batteries to the where to get levitra grid when it was fully charged.

These ships would need to be outfitted with millions of dollars worth of storage batteries, and would have storage measured in megawatt-hours. One advantage an integrated power system incorporating this kind of vessel would have is that it could also serve as a grid-tied power storage system. If other renewable sources were producing additional power, there might be times when it would make more sense to keep the barges tied up at the dock and providing their storage capacity instead of viagra online 50mgs sailing out to generate additional power.

The basic premise for this has been around for a few years. Existing ships might be able to be repurposed for use as power stations, rather than requiring that new vessels be built. Additionally, while permanently installed wave power systems need to be robust enough to withstand the strongest storms, the mobility of the ship-based system would allow it to cialis generico be moved back to safety in a harbor when severe weather threatened, which would allow for lighter weight construction.

The cost of electricity generated in this way has been estimated to be as low as 15 cents per kilowatt-hour, as compared with 30 to 65 cents per kilowatt-hour with other wave power systems. There would also be considerably fewer regulatory hurdles that would have to be overcome since the generators would be vessels, rather than permanently installed structures.

via: ecomagination

 

Hoverbarge Allows Difficult Access Construction

As wind energy developers continue to develop new locations, there are many instances where site access is particularly difficult because of soft gel viagra swampy conditions, or the location is in a tidal zone, or is levitra free samples otherwise difficult for more conventional access. To make access to these sites possible, Hovertrans Solutions Pvt. Ltd. has a vessel called a hoverbarge.

The hoverbarge is a standard marine barge (which means that it will float even if it is not powered) which is further equipped with fans and skirts to perform as a hovercraft. The hoverbarge is self-propelled, and has a cargo capacity of up to 50 tonnes and an overall deck area of 24 meters by 7 meters (approximately 78.75 feet by 23 feet). The modular construction of the hoverbarge makes it possible to dismantle the vessel and ship it to remote locations, and then be re-assembled for operation.

The hoverbarge produces very little ground pressure, making it useful for construction with minimal adverse impact on a site. Barge based construction can eliminate the uk viagra supplier need to construct long roads and work pads for heavy equipment in areas with difficult ground conditions.

via: NA Windpower

 

Oregon Gets Pilot Wave Power Project

Wave power is a compelling technology, but there has been little news on that front in the last few years, other than the cancellation of the Pelamis Power project off the coast of Portugal. The PowerBuoy will be the first commercial-scale wave park on the west coast of the U.S. with an expected capacity of 1.5 MW.

Ocean Power Technologies has been working on buy cialis without rx this project for several years already. The latest PB150 PowerBuoy will be launched later this year as the first of a ten buoy fleet that will make up the grid-connected wave power park.

The Department of Energy is particularly pleased with its investment because the generic viagra united states project is helping to http://www.revistadeteatro.com/dosage-levitra create nearly 100 new jobs, and local governments are further pleased that so much of that work, including the fabrication and construction, is being done by local companies.

The sea is a tough environment to work in, and development has been slow. But the oceans offer massive energy flows with winds and discount propecia rx waves and tides, and harnessing that power will be far better than continuing to burn up dwindling supplies of fossil fuels.

via: DOE Energy Blog

 

US Interior Department Reconsidering Hydropower

hydropower2011

Hydropower is pfizer soft viagra getting fresh consideration from the US Department of the Interior. But there are no plans to build new hydroelectric dams to do this. Instead, a recent agency report has concluded that the department could generate up to one million megawatt hours of electricity annually by adding hydropower capacity at 70 of its existing dams and other water control structures.

Building new dams for hydropower is not generally regarded favorably. While they allow electricity to be generated without carbon emissions, there is unacceptable collateral environmental damage to both surrounding upriver areas which are flooded and to the downriver areas where the water flow is suddenly constrained.

But existing dams for flood control are already built and are not going to buying cialis online be removed anytime soon. And there is a hydroelectric potential at these dams which is presently going unused. The department's list includes 70 potential sites which are located throughout the western US.

The power generation would be done by private firms or other non-federal entities under a "Lease of Power Privilege Agreement," which gives a 40 year right for use of the facility to produce electric power. The department also states that this could provide power for 85,000 homes and will help reach the buy chinese herbal cialis government targets to meet 80% percent of U.S. energy needs with clean sources by 2035.

images: U.S. Army Corps of Engineers; U.S. Bureau of Reclamation

via: EERE News

 
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