Renewable Energy From the Deep Ocean

did he say 40 more? wowz…

How much will be the cost to build this in Puerto Rico? (100 mega watts plant). This 800 millions kilowatts are monthly or how often. what other use o benefits that we have as a result of this process. who are the builders of this technology.

yes, there are experimental plants in Hawaii and possible plans for new plants in the pacific.

Can this OTEC system be able to function anywhere else besides the example in Puerto Rico? Preferably in the Pacific Ocean?

too amazing

Cold deep water is continually generated in Artic and Antartic Oceans and flows as described in the video. It is continuously pumped to the heat exchangers using part of the electricity generated. Life span is expected to be over 25 years with routine maintainence. Corrosion resistant alloys and mild methods to prevent bioaccumulation of barnacles and other sea life have been developed.

A cable to shore is much less expensive than hydrogen generation for initial near shore OTEC units.

Few question i have about the system. using your graphical design as a reference, wouldnt the cold water need to be continuosly pumped up from the depths? how would you maintain the flow and the tempature of the water? what is the expected life span and maintainence cost of the equipment seeing that the salt water creates a highly crosive enviroment and what are the effects OF barnicles or ON other sea life

Why expensive cable? The produced electricity can be converted (on side) in hydrogen…

I've got a few films tackling various issues on wind power…
And please do pass the link around

OTEC is one of the safest power systems. A comparison of various power systems is in our recent presentation to CIAPR posted on our offinf web site.

The primary disadvantage is the high initial cost, but if they are made in Puerto Rico, this will create large numbers of good jobs.

i support OTEC.

A question to JTPlocek. Is it safer for the eviroment? does it produce any harm to the oceans at all? What are the disadvantages of this systems? and whe will it be implemented in Puerto Rico?

But it will become more and more competitive as natural gas and coal prices inevitably go up, up, up, and away (after all is depleted)

If it generates byproduct desalinated water then it definitely will be implemented. Our civilization has clearly demonstrated that we do not know how to sustain fresh water sources through aquifers and rivers

The cold deep water naturally rises over time, quite rapidly during upwelling events and at seamounts. The amount used in OTEC is very small compared to natural upwelling, well below the natural variations from year to year. OTEC takes a part of what happens naturally and captures a small percentage of the energy rather than having it dissipate unused. The end result is what would happen anyway, in a way similar to hydropower. Rainwater returns to the sea with or without a dam.

It is competitive with Natural Gas but not Coal without carbon dioxide capture. As units are built, costs will come down. The first units are competitive with oil at about $80 a barrel. Also it is the only energy source that can generate byproduct desalinated water. The hybrid design can produce water and electricity together at lower cost than any other method.

The big question is what kind of energy balance could we get from this source. If it does not prove cost competitive with coal and/or natural gas it will not be implemented.

still a tint change to the currents may produce a vast climatic change. just wondering does man really know what they are getting into?

i'm not a greenie just wondering about repercutions..

Open Ocean OTEC Plantships can produce Hydrogen in addition to ammonia, which may become a preferred energy source since it is much easier to store and transport than Hydrogen. A key issue will be if ownership control can remain in Puerto Rico.

The impact on Ocean Currents will be tiny even when thousands of units are operating.

perhaps at the very lest the oil companies will instead use the electricity generated by this system to slit enormous amounts of water to Hydrogen and oxygen??
that way they will have a commodity they can sell on to the masses and still keep their profits..

one little concern:

there are a lot of Eco systems that depend on the ocean currents and their temperatures so how much will this affect the global environment????

Most fish swim fast enough to avoid or swim out of the intakes. Slow fish are lunch for fast fish in the deep open ocean. There are also screens.

it is going to kill the little fishies noooooo!

this method of subcooling and superheating propane produces mechanical energy!!!Brilliant!!!!