Exactly. I couldn't understand the source article but I did see the
sentence about 10^3 improvement for one of the substrates. I have no
idea how that will translate to overall efficiency gains. If we were to
"only" double the efficiency, that would be phenomenal.
Peri
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------ Original Message ------
From: "Haudy Kazemi via EV" <ev@lists.evdl.org>
To: "Electric Vehicle Discussion List" <ev@lists.evdl.org>
Cc: "Haudy Kazemi" <kaze0...@umn.edu>; dar...@econogics.com
Sent: 28-Jun-22 19:14:16
Subject: Re: [EVDL] 1000 x solar break through. (was EV Digest, Vol 116,
Issue 13)
At the cell or module level, these findings won't (can't) make such a large
improvement to output. But certainly there are sub-cell fine tuning
opportunities to improve overall performance. And stacking improvements
helps get performance ever closer to the theoretical maximum. (A computer
analogy is a 10x faster CPU doesn't mean you have a 10x faster web browsing
experience, because a that experience is the sum of many many
interdependent subsystems.)
Examples (not necessarily for this particular finding):
-reduce the amount of material needed to create a cell with a particular
power output
-improve sensitivity to certain parts of the EM spectrum while allowing
other frequencies to pass through the cell
-improve efficiency under lower light intensity conditions (lower internal
resistance)(particularly helpful for using solar in suboptimal orientations
or lighting conditions)
-improve shading behavior
On Tue, Jun 28, 2022, 20:49 Cor van de Water via EV <ev@lists.evdl.org>
wrote:
PV is about 15-20% efficient (turning solar power into electricity)
How do you improve that 1000 times?
Cor.
On Tue, Jun 28, 2022 at 6:30 PM Darryl McMahon via EV <ev@lists.evdl.org>
wrote:
>
> The paper refers to a 10^3 (1000) times improvement in efficiency of a
> very specific process in the photovoltaic effect. IMO, that won't
> translate into 1000 times improvement at the cell or panel level as
> there's a lot more going on to turn received photons into usable
> electricity.
>
> Darryl
>
> On 6/28/2022 4:07 PM, ev-requ...@lists.evdl.org wrote:
> > Message: 4
> > Date: Tue, 28 Jun 2022 10:18:04 -0400
> > From: Peter Eckhoff<evd...@gmail.com>
> > To: Peri Hartman<pe...@kotatko.com>, Electric Vehicle Discussion List
> > <ev@lists.evdl.org>
> > Subject: Re: [EVDL] 1000 x solar break through.
> > Message-ID:
> > <CADDOj2Cx=
zszdrpbbsepg40vtnjsv6aez+8-no_5kfg4ljh...@mail.gmail.com>
> > Content-Type: text/plain; charset="UTF-8"
> >
> > This is the paper the article came from:
> >
> > https://www.science.org/doi/10.1126/sciadv.abe4206
> >
> > Likely worth a read to find out where the 1000% might have come from.
> > Might be that it's 1000% better than silicon on a $/kw basis.
> > didn't have time to read the article. Gotta go...
> >
> > Peter
>
> --
> Darryl McMahon
> Freelance Project Manager (sustainable systems)
>
> Climate change is only a problem if you want to survive.
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