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On 100 Percent Renewable Energy is 100 Percent Possible

Schalk, 90 percent of heat attributable to climate change has been accumulating in the oceans. It is causing thermal expansion and the erosion of the icecaps.

A portion of the 330 TWh a NASA study suggests has been accumulating there, can be converted to work by the process of ocean thermal energy conversion (OTEC).

Ray Schmitt, Woods Hole Oceanographic Institution, suggests OTEC's potential is 15-24 TW; whereas the world currently operates on a bout 16 TW.

Gerard Nihous, suggests as much as 25 TW is available here.

The more energy produced by this method, the more the ocean's surface would be cooled, which in turn lessens the threat from tropical storms and reduces the movement of heat towards the poles.

The oceans are the largest heat repository on the planet at the same time as they are the largest heat sink. Virtually all other forms of energy production and all energy use adds to the problem of ocean heat.

OTEC is the only form of production that ameliorates the problem.

The more energy produced, the more the ocean is cooled.

It is a renewable with a bright and virtually limitless horizon. 

 

April 25, 2013    View Comment    

On Will Water Limit Fracking and Natural Gas Development in Saudi Arabia?

Geoff, it never ceases to amaze me that oil tankers deadhead with salt water in their ballast tanks as opposed to fresh water, which they can load at the mouth of virtually any major river as it enters the oceans.

Canada has, for example, a virtual embargo on water exports.

It does not apply to ballast water.

April 23, 2013    View Comment    

On Climate Change and the Peak Oil Flip-Flop

Jim, Ray Schmitt, Woods Hole Oceanographic Institution, shows OTEC's potential to be 15-24 terawatts.

Gerard Nihous, suggests as much as 25 terawatts is available here.

To maximize the output, I suggest a counter-current heat transfer system here ane here.

April 19, 2013    View Comment    

On Africa Aims to Combat Climate Change By Greening the Desert

Africa Aims to Combat Climate Change By Greening the Desert.

As does the Global Warming Mitigation Method.

April 18, 2013    View Comment    

On Climate Change and the Peak Oil Flip-Flop

What I mean.

See Prof. MacKay Sustainainable Energy -- without the hot air, refered to above.

Ocean thermal energy conversion 5W/m2.

World oceans 361 million km²

First law of thermodynamics: Heat and work are forms of energy transfer. Energy is invariably conserved, however the internal energy of a closed system may change as heat is transferred into or out of the system or work is done on or by the system.

 

April 16, 2013    View Comment    

On Climate Change and the Peak Oil Flip-Flop

Jim, the greenhouse in which we live is adding as much as 330 terawatts of heat to the oceans every year, NASA.

Converting half of this to productive use gets us twice the current rate of primary energy production.


April 15, 2013    View Comment    

On Climate Change Predictions a Double-Edged Sword

Ocean Thermal Energy Conversion a Silver Bullet for Climate Change?John the heat is mixing from the surface to the depths. Convection dictates most of it will return to the surface and ultimately will reach equilibrium with the atmosphere if and when we ever stop increasing the thickness of the carbon blanket.We could be producing all of the energy we will ever need by the same process even as we sap the surface heat required to produce hurricanes.
April 13, 2013    View Comment    

On Study Confirms Climate Change Will Keep Driving More Intense Precipitation

Kevin Trenbeth notes that during 2011 sea level rise went into reverse and lost 5mm from the global oceans.

Half of this decline was estimated to have fallen as rain on Australia in 2010 and early 2011.

The same potential to reduce SLR exists on the North American Continent through the capture of Canadian rainfall and movement of this water for irrigation and aquifer replenishment to the drought ridden southern states.

April 8, 2013    View Comment    

On Loading the Climate Change Dice, Stacking the Odds against Canada’s Long-term Interests

62.3 percent of Canadians didn't.

http://www.parl.gc.ca/parlinfo/Compilations/ElectionsAndRidings/ResultsParty.aspx

April 6, 2013    View Comment    

On Ocean Thermal Energy Conversion a Silver Bullet for Climate Change?

Roger, I made no claim to cooling the Earth. My objective is to address the problem of sea level rise, which I propose can be done six ways: - converting ocean heat to mechanical energy using ocean thermal energy conversion (OTEC), - electrolysis of ocean liquids to produce oxygen and the energy/water currency hydrogen, - desalination of ocean water - capture of runoff before it enters the ocean (these two then use the water for irrigation and the replenishment of depleting aquifers, - the movement of surface ocean heat to a depth where its coefficient of expansion is half that of the surface, - and throttling of the movement of tropical heat to the poles by the conversion of this heat to mechanical energy and the movement of surface heat to the deep where it contributes less to sea level rise. OTEC is a great technology. As you infer though the cold water pipe is a problem, which I believe is addressed by heat pipe and counter-current heat flow which can also strengthen the heat pipe. Keven Trenbeth - http://indymedia.org.au/2013/04/01/kevin-trenbeth-on-the-2011-sea-level-bump-and-australias-wettest-2-year-period - notes in 2011 sea level rise went into reverse and lost 5mm from the global oceans. Half of this ended up falling on Australia in 2010 and early 2011 rainfall. I think we can do something similar in Canada by moving the excess rains we receive, which mostly flow north to the Arctic, instead to the south where there is a considerable need for fresh water and where aquifers are being pump dry and according to Yadu Pohkrel this alone, globally, added .77 mm to the oceans each year since 1961.
April 4, 2013    View Comment    

On Ocean Thermal Energy Conversion: National Security Implications

Edward, OTEC would address acidification like most other non-carbon energy sources. It can supply close to twice the primary energy we are currentlyusing.

It could be said however, to the extent it cools the ocean it might increase acidification because colder liquids dissolve more gas.

On the other hand a UBC scientists predict a 14-24% reduction in fish size by 2050 as ocean temperatures increase due to lower oxygen concentrations. A colder ocean stores more oxygen?

It's kind of a case of pick your poison, though I think the maximum benefit is derived from cooling.

I went over some of this territory here The Existential Imperative: Ocean Thermal Energy Conversion.

March 30, 2013    View Comment    

On Canada’s Most Priceless Commodity Is Not Oil

Fire Water - one of the six ways I have a patents pending to address the sea level problem is to convert a portion of the oceans liquid volume to its gaseous components to enable the Hydrogen Economy. To the extent the Calgary method makes electrolysis cheaper it would facilitate such an outcome.

Back tracking from the comment below, I have no qualms with the science, it is the politics eminating from my alma mater I have no truck with.

March 30, 2013    View Comment