Breaking News
News & Analysis

IBM and Airlight boost solar energy 10X

4/24/2013 04:02 AM EDT
View Comments: Oldest First | Newest First | Threaded View
<<   <   Page 2 / 2
Al Caughey
User Rank
re: IBM and Airlight boost solar energy 10X
Al Caughey   5/15/2013 9:13:36 PM
What temperatures will the cells operate at? What temperature is the 'waste heat' water? I wish you the best of luck with this experiment but I'm not holding my breath in anticipation. Five or six years ago, I was touting the same benefits of a HCPVT solution (Menova Energy, now defunct). We too were going to use triple junction cells at ~1000x concentration and use water to keep the cells cool. We found that unless you have a virtually infinite requirement for low grade heat, it was difficult to derive any meaningful (financial) benefit from the waste heat. If you slowed the flow of the water (to get higher grade heat), then you lost efficiency on the PV side; and, given the differing values of electrical vs thermal outputs (i.e., ~12-16¢/kWh vs ~4-5¢/kWh (from NatGas)), it was not good business case...

<<   <   Page 2 / 2
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed