Chris, its damned sexy, if it it superabundant, affordable, and gives this even 
at 3% efficiency. Look to using molten salt for storing wind and sun power for 
nighttime and winter. Heats released for thermionic conversion and we have 
electricity all the time. Then there's the infra-read voltaic cell, recently 
invented (last month) that gives electricity all the time, from the sun, and 
whatever the Earth radiates from geothermal heat. Nifty, but not ready for 
prime time. So cheap and rugged is sexy ;-)



-----Original Message-----
From: Chris de Morsella <[email protected]>
To: everything-list <[email protected]>
Sent: Tue, Mar 4, 2014 11:38 pm
Subject: RE: The situation at Fukushima appears to be deteriorating



 
 
From: [email protected] 
[mailto:[email protected]] On Behalf Of LizR
Sent: Tuesday, March 04, 2014 4:40 PM
To: [email protected]
Subject: Re: The situation at Fukushima appears to be deteriorating
 


On 5 March 2014 09:56, <[email protected]> wrote:

according to a study today out in New Scientist, a researcher has estimated 
that OTEC power,even with 3% efficiency, can produce 4000 times our current 
consumption. It may even be affordable. We may have a good way out.


 


What's OTEC? Oops silly me, Il'l look it up.....OK. It's solar, via the oceans. 
Nice.

I’ve looked at OTEC in the past, as you said it is essentially harvesting 
stored solar energy stored in the warm surface layer above the thermocline.  
There are however some formidable engineering issues dealing with salt 
corrosion, oceanic storms and such.  They tried to build one – a ship based 
unit -- decades ago; I believe corrosion and other such problems were too 
costly. One place they are using OTEC is Hawaii – maybe the only place that I 
know of. There is an installation (or at least was operating a few years back) 
where they were pumping up the deep cold water onto an on land installation. 
They were able to use this quite cold water for air-conditioning & concurrent 
production of some fresh water – the cooled air loses a lot of its water vapor 
as dew. I am not sure that this unit was producing electric energy as much as 
off-loading the air-conditioners load that would have otherwise been sucking 
electricity down from the grid… do perhaps indirectly in the form of negawatts 
(e.g. negative watts)
The biggest energy source we have available in fact is energy efficiency. In 
the US buildings consume the lion’s share of total energy consumed, far more 
than the transportation sector for example. By just doing wide spread 
insulation retrofits, putting in double and triple pane glass, and by using 
energy efficient lighting – I have seen estimates that almost half the energy 
currently used could instead be saved (reserves would then last longer giving 
us more time to figure out an answer).
This is by far the most significant thing we can do; this is the low hanging 
fruit. It is not sexy and is low tech for the most part, but it is by far the 
most effective action our society can take at this juncture, given the very 
poor energy efficiency base line of our nations built structures.
Chris
The trouble is, New Scientist solves the world's problems regularly, as well as 
discovering the secret of life the universe and everything and a cure for 
cancer every other week. I bet most of their gosh wow stories never get off the 
drawing board. I hope this one does.
 

 

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