Register FAQ Members List Calendar Search Today's Posts Mark Forums Read
Grab our Blog Feed ORGrab our Forum Feed
Go Back   GM-Volt: Chevy Volt Forum > Environmental Issues
Reply
 
Thread Tools Display Modes
  #1  
Old 1 Week Ago
Jason M. Hendler's Avatar
Jason M. Hendler Jason M. Hendler is online now
Senior Member
 
Join Date: Feb 2008
Location: Indian Harbour Beach, FL
Posts: 2,576
Default First Solar buys 117 MW project from solar startup Ausra

First Solar buys 117 MW project from solar startup Ausra:

Link

Given that water is now a recognized strategic commodity, it makes sense that thin film is used for energy creation, and concentrated solar thermal steam generation is used only when steam is essential to the given process, as steam is used in countless agricultural and industrial applications.
__________________
Jason M. Hendler
www.jason-hendler.mainstreetautos.com
Reply With Quote
  #2  
Old 1 Week Ago
Texas's Avatar
Texas Texas is offline
Senior Member
 
Join Date: Mar 2008
Posts: 3,208
Default

Quote:
Originally Posted by Jason M. Hendler View Post
First Solar buys 117 MW project from solar startup Ausra:

Link

Given that water is now a recognized strategic commodity, it makes sense that thin film is used for energy creation, and concentrated solar thermal steam generation is used only when steam is essential to the given process, as steam is used in countless agricultural and industrial applications.




Yes, PV solar has advanced so quickly with roll-to-roll manufacturing that it's going to make many other renewable technologies obsolete. Just wait until Nanosolar ramps.

No moving parts, no water, no expensive hot fluid handling systems, no steam turbines, can be put on any building and make absolutely no sound. It's a combination of features that are going to be very hard to beat.
Reply With Quote
  #3  
Old 1 Week Ago
pdt pdt is offline
Senior Member
 
Join Date: Apr 2008
Posts: 737
Default

Quote:
Originally Posted by Jason M. Hendler View Post
Given that water is now a recognized strategic commodity, it makes sense that thin film is used for energy creation
No technology creates energy. Technologies exist to convert energy into other forms, useful for particular purposes, at a loss. I know some will think I'm just being annoyingly nit-picky, but language is important; it can help us face reality or hide from it. It's better to face it.

For example, the loss part is important. Consider solar energy conversion technologies. Solar-thermal hot water and steam production systems have much lower conversion losses than photovoltaic systems. Also, while water use is a concern and shouldn't be ignored, solar-thermal electric systems seem to have an efficiency advantage (I've seen numbers in the mid-twenties) over PV and relatively inexpensive energy-storage potential.
Reply With Quote
  #4  
Old 1 Week Ago
Jason M. Hendler's Avatar
Jason M. Hendler Jason M. Hendler is online now
Senior Member
 
Join Date: Feb 2008
Location: Indian Harbour Beach, FL
Posts: 2,576
Default

Quote:
Originally Posted by pdt View Post
No technology creates energy. Technologies exist to convert energy into other forms, useful for particular purposes, at a loss. I know some will think I'm just being annoyingly nit-picky, but language is important; it can help us face reality or hide from it. It's better to face it.

For example, the loss part is important. Consider solar energy conversion technologies. Solar-thermal hot water and steam production systems have much lower conversion losses than photovoltaic systems. Also, while water use is a concern and shouldn't be ignored, solar-thermal electric systems seem to have an efficiency advantage (I've seen numbers in the mid-twenties) over PV and relatively inexpensive energy-storage potential.
You are correct. I should have said energy collection / conversion.
__________________
Jason M. Hendler
www.jason-hendler.mainstreetautos.com
Reply With Quote
  #5  
Old 1 Week Ago
OPEC SUCKS OPEC SUCKS is offline
Senior Member
 
Join Date: May 2008
Location: Foothills Northern California
Posts: 495
Default Where did it Go ?

I thought the steam generation systems were closed. So, after an initial consumptive use of water, or fluid, then what ? Where is the water loss ?

If there is water consumption, then why wasn't this trumpeted by these same solar pundits and experts a year ago when they were jizzing all over themselves announcing project after project that used water and even ice in the desert region solar power production ?
Reply With Quote
  #6  
Old 1 Week Ago
Jason M. Hendler's Avatar
Jason M. Hendler Jason M. Hendler is online now
Senior Member
 
Join Date: Feb 2008
Location: Indian Harbour Beach, FL
Posts: 2,576
Default

Quote:
Originally Posted by OPEC SUCKS View Post
I thought the steam generation systems were closed. So, after an initial consumptive use of water, or fluid, then what ? Where is the water loss ?

If there is water consumption, then why wasn't this trumpeted by these same solar pundits and experts a year ago when they were jizzing all over themselves announcing project after project that used water and even ice in the desert region solar power production ?
Environmentalists have a long history of hiding the downside of their policies. Still, water resources are still manageable, so it's not a show stopper.
__________________
Jason M. Hendler
www.jason-hendler.mainstreetautos.com
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 09:28 AM.

Powered by vBulletin® Version 3.6.9
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.