Comments on: Record Power from Solar Cell http://onemansblog.com/2006/12/15/record-power-from-solar-cell/ Specialization is for Insects. Thu, 24 May 2012 16:31:11 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: John P. http://onemansblog.com/2006/12/15/record-power-from-solar-cell/comment-page-1/#comment-5374 John P. Thu, 31 May 2007 04:44:43 +0000 http://onemansblog.com/2006/12/15/record-power-from-solar-cell/#comment-5374 Carol, I'm sorry you are having difficulty with viewing the site. That is the first report I've had of it's kind. (Thanks for the compliment by the way!) Could you tell me a little information about your computer so I can try to duplicate the problem? Are you using a PC, or a Mac? Which Web browser are you using, and if you know the resolution of your monitor it would be quite helpful. Several people are using my theme, so if there are issues I'd like to fix them for everyone's benefit. Thanks, John PS - If you think this topic is cool, wait till you see my post that comes out in about 2 hours! It's going to show how pure energy can be extracted from seawater! :-) Carol,

I’m sorry you are having difficulty with viewing the site. That is the first report I’ve had of it’s kind. (Thanks for the compliment by the way!)

Could you tell me a little information about your computer so I can try to duplicate the problem? Are you using a PC, or a Mac? Which Web browser are you using, and if you know the resolution of your monitor it would be quite helpful.

Several people are using my theme, so if there are issues I’d like to fix them for everyone’s benefit.

Thanks,

John

PS – If you think this topic is cool, wait till you see my post that comes out in about 2 hours! It’s going to show how pure energy can be extracted from seawater! :-)

]]> By: carol ann alex http://onemansblog.com/2006/12/15/record-power-from-solar-cell/comment-page-1/#comment-5366 carol ann alex Thu, 31 May 2007 01:15:47 +0000 http://onemansblog.com/2006/12/15/record-power-from-solar-cell/#comment-5366 Something is wrong with either my computer or your site. Your type has been transposed with one, two, or three lines on top of each other. Hope it is me and not you because your subject is electrifying. I am hoping for the day when the roofs of homes and cars can be coated with photovoltaic cells and then shrink wrapped with weather protection so that we can get out from under this oil dependency while raising the standard of living for the world without destroying our ecosystems. Something is wrong with either my computer or your site. Your type has been transposed with one, two, or three lines on top of each other. Hope it is me and not you because your subject is electrifying.

I am hoping for the day when the roofs of homes and cars can be coated with photovoltaic cells and then shrink wrapped with weather protection so that we can get
out from under this oil dependency while raising the standard of living for the world without destroying our ecosystems.

]]> By: The Man http://onemansblog.com/2006/12/15/record-power-from-solar-cell/comment-page-1/#comment-796 The Man Mon, 12 Mar 2007 02:05:12 +0000 http://onemansblog.com/2006/12/15/record-power-from-solar-cell/#comment-796 That is very interesting info Lynn. Thanks for sharing. John That is very interesting info Lynn. Thanks for sharing.

John

]]> By: Lynn R. Stratford http://onemansblog.com/2006/12/15/record-power-from-solar-cell/comment-page-1/#comment-795 Lynn R. Stratford Sun, 11 Mar 2007 19:47:14 +0000 http://onemansblog.com/2006/12/15/record-power-from-solar-cell/#comment-795 This development of the 40.7% concentrator cell is major step to achieving cost-effective solar systems, not just because of the world record conversion efficiency, but also because it brings attention to the fact we should focus on concentrators and not flat plate PV. Our company uses the currently available Spectrolab 37.3% efficient solar cells. These cells were tested under laboratory conditions using 25° C., but we use them under actual field conditions at 60° C. They operate more efficiently at lower temperatures. At 500X concentration, we use an active cooling system and acquire the thermal energy as a second profit center. The technology for these concentrator cells were funded by the DOE (us), so the technology is free for anyone to use and develop. Besides Spectrolab, the other company producing these high efficiency cells is Emore Corporation. In volume production of 800 kWs, our cost to install is $4.00/watt (using low labor rates). If we could manufacture our own cells or experience very large production volumes, then it would be very easy to reduce installed costs to less than $3.00/watt. Right now, the solar cell itself represents from $.54 to $1.34/watt of the total system cost depending upon the volume purchased. This is a wonderful development and our current total PV/thermal system conversion rate of 60% will only get better as additional development of this concentrator cell increases. This development of the 40.7% concentrator cell is major step to achieving cost-effective solar systems, not just because of the world record conversion efficiency, but also because it brings attention to the fact we should focus on concentrators and not flat plate PV.

Our company uses the currently available Spectrolab 37.3% efficient solar cells. These cells were tested under laboratory conditions using 25° C., but we use them under actual field conditions at 60° C. They operate more efficiently at lower temperatures.

At 500X concentration, we use an active cooling system and acquire the thermal energy as a second profit center. The technology for these concentrator cells were funded by the DOE (us), so the technology is free for anyone to use and develop. Besides Spectrolab, the other company producing these high efficiency cells is Emore Corporation.

In volume production of 800 kWs, our cost to install is $4.00/watt (using low labor rates). If we could manufacture our own cells or experience very large production volumes, then it would be very easy to reduce installed costs to less than $3.00/watt. Right now, the solar cell itself represents from $.54 to $1.34/watt of the total system cost depending upon the volume purchased.

This is a wonderful development and our current total PV/thermal system conversion rate of 60% will only get better as additional development of this concentrator cell increases.

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