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Old McDonald

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Reply with quote  #1 
Interesting future possibilities

http://www.bbc.com/news/science-environment-37902773

stmbtwle

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Reply with quote  #2 
Wouldn't require exotic/expensive materials as do batteries, either.  I wonder what kind of cycle efficiency they get?


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Willie, Tampa Bay
SolarInterested

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Spam Stomper
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Reply with quote  #3 
From the link in the BBC article http://www.highview-power.com/


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Both temperature rise and airflow are integral to comparing hot air collectors
SolarInterested

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Reply with quote  #4 
This is something similar:

We Store Energy in Compressed Air  http://www.lightsail.com/




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Both temperature rise and airflow are integral to comparing hot air collectors
stmbtwle

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Reply with quote  #5 
We'll just have to see how well it works over time. It's very complex and will be expensive to build and operate. I still worry about efficiency but the heat/cold storage tanks hopefully will bring that up to an acceptable level.

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Willie, Tampa Bay
Old McDonald

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Reply with quote  #6 
Willy, 60% is mentioned somewhere in the links provided in the article. 
stmbtwle

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Reply with quote  #7 
That's a start...
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Willie, Tampa Bay
Nessie

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Reply with quote  #8 
On a more domestic front but in the same vein, I read an article recently where Ice Energy are producing a new product "The Ice Cube" where the unit, run by PV Panels, freezes ice then uses the ice to create cold air which can be used instead of expensive AC
stmbtwle

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Reply with quote  #9 
Not sure you would save any money, but you would get "solar" AC when the sun wasn't shining.
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Willie, Tampa Bay
SolarInterested

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Reply with quote  #10 
https://www.ice-energy.com/

Looks like it's primary purpose is to shift electrical consumption for air conditioning to off peak hours. From their site:

"Air conditioning is the main driver of peak demand and the most difficult load to manage. Ice Energy’s behind-the-meter ice batteries offer utilities a proven way to permanently eliminate 95% of the peak cooling load . Since 2005, over 40 utilities have been using our award-winning Ice Bears to manage their customers' air conditioning load without impacting comfort. At less than half the life-cycle cost of lithium ion batteries, Ice Bears deliver the most cost-effective, reliable and green distributed energy storage for the grid."


There is this aspect where it 'stores' excess solar production for use later for air conditioning:

"Flattens the duck curve by using solar over-generation to charge ice batteries and using the stored cooling to eliminate the peak AC load"


Narrated by Morgan Freeman, no less.


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Both temperature rise and airflow are integral to comparing hot air collectors
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