Wave cool … Desalinization + Rnewable Power Generation. Does it get better than that?

Okay, we probablly all agree, the VentureOne is iPod cool. But, chances are if you’re hanging out on the Ecotality web site, defining cool for you (and me) doesn’t come from American Idol or the pages of People magazine, but more fundamentally about thinking and learning about things that have a real potential to change the world that we do and will live in.  Well, so, I for one think that Independent Natural Resources SEADOG(tm) Pump and linking it up with water desalinization so that there is zero-carbon energy and zero-carbon waste water desalinization is Wave Cool.  

The SEADOGTM pump captures ocean-wave energy to pump large volumes of seawater, consuming no fuel or electricity and creates no polluting by-products in the process. The pump uses buoyancy to convert wave energy to mechanical energy. The main components of the SEADOGTM pump include a buoyancy chamber, buoyancy block, piston assembly, piston shaft, piston cylinder, and intake and exhaust valves.  When positioned in the water the buoyancy block (filled with air) floats within the buoyancy chamber, moving up and down in relation to the ocean waves and swells. The buoyancy block is connected to the piston shaft which in-turn moves the piston assembly through the piston cylinder.

So, that is the pump.  But, what the SEADOGTMB system does is takes the pumped water and puts it into an hydroelectricity generation system.  Store the water so that it can be a baseload, “drawing from the water holding area when it is needed to match demand”.  INRI is claiming that the “system has the potential to be cost competitive with any other form of base-load power generation”.

The claimed benefits of this setup are pretty impressive:

  • Pump operation requires no fuel or electricity and introduces zero carbon dioxide into the atmosphere.
  • The pump is an adaptable device that can be scaled and configured for most of the world’s shorelines.
  • Pump design and construction is simple and utilizes materials that are readily available almost anywhere. Pump manufacturing is well suited for job creation in the region of deployment.
  • The pump device contains no electrical or hydraulic components which can be damaged by seawater and possibly introduce pollutants to the water or air.
  • An installed and operating pump system (array of pumps) will continue to function if one or more pumps are shut down for maintenance.

And, for desalinization,

  • The pump is capable of delivering high volumes of water at sufficient head pressure to supply water for shoreline desalination facilities.
  • The SEADOGTM pump has the potential to make desalination much less expensive as energy consumption can represent as much as one-third of the operating cost of desalinated water.
  • In their writeup, Renewable Energy Access explained it as follows:

     To create hydroelectricity, the SEADOG ocean-wave pump captures energy from ocean swells or waves to pump seawater to a land-based holding area or water tower, where the water can be returned to the ocean through hydroelectric turbines.

    In addition, because the device pumps water to a reservoir, it can store salt water or desalinated fresh water in the form of potential energy to generate power on demand, even if the current wave regime during a particular period is too low to generate power.

    The SeaDog offers the potential for GHG-free energy generation and GHG-water desalinzation. 

    Again, back to Renewable Access:

     The lack of sufficient fresh water is a growing concern in many regions of the world and seawater desalination is increasingly essential. The state of Texas alone has more than 100 desalination plants. Energy consumption is significant in desalination, sometimes accounting for as much as one-third of the operating cost of desalinated water.

    How many of those new coal plants could SeaDogs make obsolete overnight?




    2 responses to “Wave cool … Desalinization + Rnewable Power Generation. Does it get better than that?

    1. Clever. Very clever. Combine energy generation and desalination to solve two problems at once.

    2. Our war for energy independence and economic sustainability

      The US government and other governments are not serious about energy efficiency and renewable energy development and implementation – they are too busy playing politics and capitulating to the Oil Companies.
      IT is time to get series to avert an economic catastrophe – I hope it is not too late
      The world needs to invest $50 trillion in energy in coming decades, building some 1,400 nuclear power plants and vastly expanding wind power, solar power, geothermal energy in order to halve greenhouse gas emissions by 2050, according to an energy study released Friday.
      The report by the Paris-based International Energy Agency envisions an “energy revolution” that would greatly reduce the world’s dependence on fossil fuels while maintaining steady economic growth.
      “Meeting this target of 50 percent cut in emissions and replacing fossil fuel represents a formidable challenge, and we would require immediate policy action and technological transition on an unprecedented scale,” IEA Executive Director Nobuo Tanaka said.
      The scenario for deeper cuts would require massive investment in energy technology development and deployment, a wide-ranging campaign to dramatically increase energy efficiency, and a wholesale shift to renewable sources of energy.
      Assuming an average 3.4 percent global economic growth over the 2010-2050 period, governments and the private sector would have to make additional investments of $50 trillion in energy, or 1.2 percent of the world’s gross domestic product, the report said.
      That would be an investment more than three times the current size of the entire U.S. economy.
      In addition, the world would have to construct 38 new nuclear power plants each year, and wind-power turbines would have to be increased by 18,000 units annually, solar energy output would have to be increased 20 fold every year.
      Let us not forget as we are increasing the use of renewable energy and energy efficiency – the world population is increasing – the demand for energy by advancement in technology worldwide is also increasing. We have to take these factors into account.
      Oil is going to hit at least $200 per barrel, gasoline at the pump will hit $6 or more per gallon, in some countries it is already $10 per gallon.
      Most of the money would be in the commercialization of energy technologies developed by governments and the private sector.
      “If industry is convinced there will be policy for serious, actions for accelerated development of renewable energy and efficiency, then these investments will be made by the private sector.”
      People are hurting financially and economically, this must end, we should strive for a thriving economy with new technology for renewable energy and efficiency.
      We have the technology and knowhow let us stop playing politics – unite our people and our nation in a common goal to avert an economic disaster and maintain our quality of life for generations to come.
      Let us serve as an example to the rest of the world.
      Jay Draiman, Energy Analyst – June 8, 2008

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