Re: New high end Solar Cell claims 42.8 % efficiency

On Thu, 26 Jul 2007 17:08:50 -0500, Spehro Pefhany
<speffSNIP@xxxxxxxxxxxxxxxxxxxxxxx> wrote:

On Thu, 26 Jul 2007 13:54:10 -0700, the renowned John Larkin
<jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

On Thu, 26 Jul 2007 13:21:03 -0700, "Joel Kolstad"
<JKolstad71HatesSpam@xxxxxxxxx> wrote:

"John Larkin" <jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:1fvha391mfi3sbh3io82v5q2kjvhhhtf1b@xxxxxxxxxx
Sounds like a parlor trick. With 20:1 concentrator optics, dichroic
wavelength splitters, and three different solar cells, it's not going
to be economic.

Probably not any time soon, but that doesn't mean it's impossible to develop
the technology to *make* it cheap. Transistor haven't always cost roughly one
*millionth* of a cent, you know. :-)


Similar breakthroughs are announced several times per week. Not one in
ten thousand amounts to anything.

Do you own anything that uses a fuel cell for power?

Does stock in Ballard Power Systems count?


Negative $50 million a year... they'd make more energy by burning
dollar bills.

John


.

Relevant Pages

  • Re: New high end Solar Cell claims 42.8 % efficiency
    ... wavelength splitters, and three different solar cells, it's not going ... Similar breakthroughs are announced several times per week. ... Does stock in Ballard Power Systems count? ... next year's technology for at least 50 years now. ...
    (sci.electronics.design)
  • Re: New high end Solar Cell claims 42.8 % efficiency
    ... wavelength splitters, and three different solar cells, it's not going ... the technology to *make* it cheap. ... Transistor haven't always cost roughly one ...
    (sci.electronics.design)
  • Re: New high end Solar Cell claims 42.8 % efficiency
    ... wavelength splitters, and three different solar cells, it's not going ... Similar breakthroughs are announced several times per week. ... next year's technology for at least 50 years now. ...
    (sci.electronics.design)