Breaking News
Design How-To

Ambient energy stands ready to serve

NO RATINGS
Page 1 / 4 Next >
More Related Links
View Comments: Newest First | Oldest First | Threaded View
docdivakar
User Rank
Manager
re: Ambient energy stands ready to serve
docdivakar   7/26/2011 5:09:26 PM
NO RATINGS
@Infinergia: actually the number is in the range but not more than 150mw/cm^2, so it is NOT really in hundreds! The Solar irradiance on the upper reach of the atmosphere is about 1400W/m^2. The atmospheric attenuation reduces this to about 1000W/m^2; in fact, Telcordia specs out ~968W/m^2 to design for out door communication equipment. Most of the solar insolation is in the IR band. So this would make PV modules working with a max theoretical efficiency about 300W/m^2 (The Shockley-Queisser limit for the efficiency of a single-junction solar cell under unconcentrated sunlight is about 33%). You are right, the best ones have about 200W/m^2. Dr. MP Divakar

Infinergia
User Rank
Rookie
re: Ambient energy stands ready to serve
Infinergia   7/20/2011 3:33:27 PM
NO RATINGS
I'm a bit suprised by the table 2 indicating solar cell can turn hundreds of mW/cm2. To me best for pv panel is 20 mW/cm2! (i.e. best sunpower panels around 200W/m2).

Top Comments of the Week
August Cartoon Caption Winner!
August Cartoon Caption Winner!
"All the King's horses and all the KIng's men gave up on Humpty, so they handed the problem off to Engineering."
5 comments
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Radio
LATEST ARCHIVED BROADCAST
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.
Flash Poll