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).

Flash Poll
Radio
LATEST ARCHIVED BROADCAST
EE Times editor Junko Yoshida grills two executives --Rick Walker, senior product marketing manager for IoT and home automation for CSR, and Jim Reich, CTO and co-founder at Palatehome.
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