Priligy online now, save money
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 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 generic cialis in canada "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 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 levitra free samples an intriguing but difficult proposition. It offers a fairly steady source of price cialis canada 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 port and enter site levitra canada online pharmacy connect its batteries to cialis generico the 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 where to get levitra barges tied up at the dock and providing their storage capacity instead of 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 viagra online 50mgs the ship-based system would allow it to 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 swampy conditions, or the location is in a tidal zone, or is 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 pfizer soft viagra 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 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 uk viagra supplier cancellation of the Pelamis Power project off the coast of soft gel viagra 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 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 project is helping to create nearly 100 new jobs, and local governments are further pleased that so much of that work, including the generic viagra united states fabrication and construction, is being done by local companies.

The sea is a tough environment to buying cialis online 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


Hydropower is 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 buy discount levitra online 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 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 buy cialis without rx produce electric power. The department also states that this could provide power for 85,000 homes and will help reach the government targets to meet 80% percent of U.S. energy needs with clean sources by 2035.

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

via: EERE News

Start   Prev   1 2 3 4 5 6 7 8 9 10   Next   End

Page 2 of 12

Are you an EcoGeek?

We've got to keep 7 billion people happy without destroying our planet. It's the biggest challenge we've ever faced....but we're taking it on. Are you with us?

The Most Popular Articles