June 23, 2007


'Saudi Arabia of renewable energy' off Scotland's coast (IAN JOHNSTON, 6/23/07, scotsman.com)

Not only could it provide endless supplies of electricity for Scotland and beyond, but spare energy could be used to convert rubbish into environmentally friendly biofuel for cars, trains and airplanes, slashing greenhouse gas emissions and ridding the country of landfill sites.

In August, the world's largest tidal-current generator will be installed on Northern Ireland's Strangford Lough and, next year, ScottishPower will start testing an underwater turbine in the Pentland Firth itself.

ScottishPower believes its system could generate up to a gigawatt (GW) of electricity - equivalent to all of Scotland's wind farms put together, or the power produced by the Hunterston B nuclear power station.

Posted by Orrin Judd at June 23, 2007 7:36 AM

We have two companies doing so in the East River in NYC right now, albeit on a smaller test scale. They are currently competing for feasible sites in most major harbors in the USA.

The idea of splitting salt water into hydrogen and oxygen with the additional/extra power sounds promising.

Posted by: Genecis at June 23, 2007 9:29 AM

Promising enough for the Greenies to try and kill it - Save the Whales, Dolphins, Salmon, Clams, Plankton, etc., fill in a cause, Stop the Wave Generators Now!!!!

Posted by: KRS at June 23, 2007 12:21 PM

h2 and o2 are not what you get from salt water electrolysis - you end up with quite a bit of the "devil's own element" and NaOH...

Posted by: anon in tx at June 23, 2007 1:02 PM

I can't wait for the greens to find out that tidal power slows the rotation of the Earth!

Posted by: PapayaSF at June 23, 2007 4:24 PM

Greens, like PETA, NOW, IA, and other leftwing lunatics aren't interested in solving problems. They're only interested in keeping the pot stirred and the public on the edge of one crisis after the other.

If we were really serious, there would be safe and clean nuclear plants dotting the landscape and women's groups would be concerned about preventing pregnancy, not killing the unborn, and we would be saving the lives of countless human babies in Africa, instead of perpetuating the myth of DDT killing bird babies and . . . well you all know the rest of it.

Posted by: erp at June 24, 2007 6:07 AM


Hydrogen may be produced from water using the process of electrolysis, but this process is presently significantly more expensive commercially than hydrogen production from natural gas.

Sodium hydroxide [NaOH] is produced (along with chlorine and hydrogen) via the chloralkali process. This involves the electrolysis of an aqueous solution of sodium chloride. The sodium hydroxide builds up at the cathode, where water is reduced to hydrogen gas and hydroxide ion: 2Na+ + 2H2O + 2eāˆ’ ā†’ H2 + 2NaOH

In the United States, the major producer of sodium hydroxide is the Dow Chemical Company, which has annual production around 3.7 million tonnes from sites at Freeport, Texas, and Plaquemine, Louisiana. Other major US producers include Oxychem, PPG, Olin, Pioneer Companies, Inc. (PIONA), and Formosa. All of these companies use the chloralkali process[6].

The process I was thinkijng of as promising (currently in experimentation) uses radio waves passed through salt water to generate [pure burnable] hydrogen.

Here in NH one of our major power plants is sited on the Piscataqua River and has converted from coal to natural gas to, currently, wood chips for power generation seeking lower costs.

Four miles down river the state imports, by ship, huge amounts of road salt from overseas. The Piscataqua is a significant tidal bore. With that extra power generation we could choose to desalinate the water for road salt, produce hydrogen as a side product, or produce NaOH as a saleable product just as Dow does now in Texas.\

Isn't Wikipedia wonderful!

Posted by: Genecis at June 24, 2007 9:20 AM