Utility cancels contract for So-Cal solar project

Kingfish

Kingfish

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Reuters yesterday: Utility cancels contract for Tessera’s Calico solar project

Reuters said:
The solar dishes, called SunCatchers, are 40-feet tall and 38-feet wide and resemble large mirrored satellite receivers. The mirrors focus the sun on a Stirling engine filled with hydrogen gas that expands as it is heated, driving pistons to generate electricity. The technology has been proven in pilot projects but never tried on a large scale.
Click to expand...
This is weird. Was the Hydrogen system built on hype?
? KF ¿
 
Kingfish said:
Reuters yesterday: Utility cancels contract for Tessera’s Calico solar project

Reuters said:
The solar dishes, called SunCatchers, are 40-feet tall and 38-feet wide and resemble large mirrored satellite receivers. The mirrors focus the sun on a Stirling engine filled with hydrogen gas that expands as it is heated, driving pistons to generate electricity. The technology has been proven in pilot projects but never tried on a large scale.
Click to expand...
This is weird. Was the Hydrogen system built on hype?
? KF ¿
Click to expand...


Nope, hydrogen or helium are excellent gases to use in a stirling engine. They have extremely low specific heat values, so they create the needed pressure with a minimum of waste energy needed to heat them, and cool most rapidly.
 
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