Think about it, the ocean is moving 24/7/365. Between the waves and the tides, there is a constant source of renewable energy being generated, but not being harvested. “Generating technologies for deriving electrical power from the ocean include tidal power, wave power, ocean thermal energy conversion (OTEC), ocean currents, ocean winds and salinity gradients.
Of these, the three most well-developed technologies are tidal power, wave power and ocean thermal energy conversion. Tidal power requires large tidal differences which, in the U.S., occur only in Maine and Alaska. Ocean thermal energy conversion is limited to tropical regions, such as Hawaii, and to a portion of the Atlantic coast. Wave energy has a more general application, with potential along the California coast. The western coastline has the highest wave potential in the U.S.; in California, the greatest potential is along the northern coast.
California has more than 1,200 kilometers (745 miles) of coastline, and the combined average annual deep water wave power flux is over 37,000 megawatts (MW) of which an upper limit of about 20 percent could be converted into electricity. This is sufficient for about 23 percent of California’s current electricity consumption. However, economics, environmental impacts, land-use and grid interconnection constraints will likely impose further limits to how much of the resource can be extracted.
Although technology is still at a relatively immature pilot project stage, economic projections indicate that ocean energy could become cost-competitive over the long-term.”
The US Bureau of Ocean Energy Management (BOEM) has approved a plan to develop a grid-connected, 12 MW offshore wind test facility off the coast of Virginia.
“Developing our clean energy resources is an essential element of building a new Virginia economy” said Governor Terry McAuliffe. “With this research lease, Virginia is leading the way in building wind turbines in the Atlantic Ocean and taking the next step toward the clean energy economy we need to create jobs and lower energy costs now and into the future.
BOEM Director Abigail Ross Hopper added that the data collected under the research lease will help the BOEM, DMME and other government agencies to understand the wind potential, weather and other conditions relevant to offshore wind power generation off the Virginia coast. It will also be useful to other groups such as universities, environmental organizations and industry.
For more of the story, go to: http://www.renewableenergymagazine.com/article/us-boem-approves-12-mw-virginia-wind-20150325
What the heck is OTEC?
While it may sound like the precursor to yet another huge oil company, nothing could be further from the truth. OTEC stands for Ocean Thermal Energy Conversion, which is generated using the difference between the warm surface water and cold deep water of the ocean. The temperature difference can be used to drive a steam cycle that turns a turbine which in turn produces power. When the warm surface sea water passes through a heat exchanger, it vaporizes at a low boiling point which is then funneled into a turbine generator, producing electricity.
I used OTEC as the futuristic renewable energy featured in my sci-fi novel “Anti-Vigilante and the Rips in Time”, but I sure hope it won’t take centuries to see it become a viable energy source!
I’ve written an unusual science fiction novel “Anti-Vigilante and The Rips in Time”. Creating my own world, peoples and language, the book is a “preventable vision of the future” with its hooks deep into renewable energy and the impending World Water Wars. The science in my book utilizes ocean energy and photovoltaics to power their daily world. People from the past become the Gods of the Future as they appear through the Rips in Time.
You can find “Anti-Vigilante and the Rips in Time” at Amazon.com today, just follow this link: http://www.amazon.com/Anti-Vigilante-Rips-Time-Diane-Tegarden/dp/0974536911/ref=sr_1_2?s=books&ie=UTF8&qid=1350751953&sr=1-2&keywords=Anti-Vigilante
Green Grove Thursday’s renewable energy news….read about how Canada is moving to use tidal power to create clean, green energy from the ocean!
Green Grove Thursday….for the latest in renewable energy news, events, technological developments and environmental concerns, you can get a free email subscription to Renewable Energy Magazine at: www.renewableenergymagazine.com
If I lived closer to Sacramento, I’d love to attend this workshop. Desalination is a vastly underused resource that creates clean drinking water from ocean salt water!
The Public Workshop will be held on Wednesday, August 22, 2012 at 9:00 a.m. at the Joe Serna Jr.-Cal/EPA Headquarters Building, State Water Resources Control Board
Coastal Hearing Room. The address is: 1001 “I” Street, Second Floor, Sacramento, CA 95814.
More information can be found on the web page at: http://www.waterboards.ca.gov/water_issues/programs/ocean/desalination