What are mhk technologies?
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- MHK technologies are more predictable, constant, and creates tons of energy for homes
- We can harness four times current electricity capacity with ocean renewables
- Energy from the oceans could supply half of U.S. electricity needs
- Ocean energy can reduce electricity rates and revitalize coastal manufacturing sectors
Climate Change Ext.Solves energy security / meets electricity needsIncreasing federal government investment in MHK technologies can supply up to 19% of U.S. electricity needsDr. Belinda A. Batten, February 27, ‘14, Director, Northwest National Marine Renewable Energy Center at Oregon State University, Testimony Before the United States Senate Committee on Energy and Natural Resources Subcommittee on Water and Power Hearing on "S. 1419, the Marine and Hydrokinetic Renewable Energy Act of 2013", http://www.energy.senate.gov/public/index.cfm/ files/serve?File_id=36dec212-8949-4671-b65e-e8a0892c851c, Accessed 4/28/2014
Moving water is at least 800 times denser than wind blowing at the same speed. Consequently, ocean waves and currents produce significantly more energy than wind over the same surface area. Wave energy is also more consistently available than solar or wind energy, and wave strength can be predicted days in advance. To capture wave energy, wave power devices extract energy from the surface motion of waves or from pressure fluctuations below the ocean’s surface. For example, Pelamis Wave Power Limited (PWPL) commissioned the world’s first commercial wave farm off the coast of Portugal in 2008. This project uses 140-meter long attenuators, multi-segment floating devices that capture wave energy by means of the differing wave heights along the length of the devices. Each attenuator can produce enough electricity for 500 hundred homes. Energy from ocean currents, such as the Gulf Stream, is also relatively constant and predictable. Ocean current energy may be captured by submerged turbines anchored to the sea floor. Offshore solar technologies are also possible, but, at present, there is limited interest in this technology. We can harness four times current electricity capacity with ocean renewablesJosé Zayas, January ‘14, Director, Wind and Water Power Technologies Office, U.S. Department of Energy, “Advancing Ocean Renewable Energy In the United States,” Sea Technology Magazine, http://www.sea-technology.com/features/2014/0114/1.php, Accessed 4/11/2014 With more than 4,000 gigawatts (GW) gross energy resources (four times the nation’s installed electricity capacity) within 50 miles of U.S. coasts, offshore wind has the potential to become a major source of clean energy if only a small portion of that resource is actually tapped for electricity production. Tidal and wave energy are renewable resources that can be harnessed wherever changing tides, waves or currents move a significant volume of water. The Department’s nationwide wave and tidal energy resource assessments from 2012 identify a technical resource potential of up to 1,400 terawatt-hours of generation per year. For context, 1 terawatt-hour of electricity is enough to power 85,000 homes. Nearly 80 percent of the U.S. electrical demand comes from coastal and Great Lake states, with many of them having major U.S. cities with access to domestic clean energy resources. Energy from the oceans could supply half of U.S. electricity needsTodd Woody, February 27, 2012, “The Next Wave In Renewable Energy From the Ocean,” Forbes, http://www.forbes.com/sites/toddwoody/2012/02/08/the-next-wave-in-renewable-energy-from-the-ocean/, Accessed 4/11/2014 Indeed. A new government-sponsored study has found that the oceans surrounding the U.S. contain enough energy to potentially supply more than half the nation’s electricity demand. Even with the limits of today’s technology, scientists concluded, there’s sufficient recoverable energy offshore – some 1,170 terawatt-hours a year in all – to keep a third of the country humming. More energy crashes annually onto the West Coast, for instance, than California uses in a year. Ocean energy can reduce electricity rates and revitalize coastal manufacturing sectorsJosé Zayas, January ‘14, Director, Wind and Water Power Technologies Office, U.S. Department of Energy, “Advancing Ocean Renewable Energy In the United States,” Sea Technology Magazine, http://www.sea-technology.com/features/2014/0114/1.php, Accessed 4/11/2014 Coastal states tend to have high electricity rates and, in areas such as the Northeast and mid-Atlantic, have carbon-intensive electricity supplies with limited local options for clean energy production. Ocean energy offers these states a significant new energy option that can provide as a hedge against fluctuating fuel prices, omitting the need for long-distance overland transmission. It is expected that ocean energy systems, similar to land-based wind, can provide coastal states the opportunity to revitalize the manufacturing sector. Directory: file -> view view -> Western Europe after wwii view -> Author study: paul fleischman view -> Qpa1 7ela study Guide view -> Arctic Oil/Gas Neg view -> November 1970 Approximately 150,000-500,000 deaths Bhola Cyclone Bangladesh view -> Grade Level: 6 Unit of Study: Caribbean glce view -> Citation: Duffield, Katy view -> Table of Contents Lesson # view -> Chinese Wind Energy Disad Download 0.89 Mb. Share with your friends:
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