[RE-wrenches] CIS mods

[John Berdner]

Light soaking = exposed to sunlight for some period of time in order to complete light induced degradation (or apparently light induced enhancement).

Best Regards,

John Berdner
General Manager, North America

[cid:image001.jpg at 01CE0E09.55EDDEB0]

SolarEdge Technologies, Inc.
3347 Gateway Boulevard, Fremont CA 94538 USA  (*Please note of our new address.)
T: 510.498.3200, X 747
M: 530.277.4894

From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Marco Mangelsdorf
Sent: Monday, February 18, 2013 5:37 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] CIS mods

Can someone please educate as to what "soaking" means in this context?

Thanks.

From: re-wrenches-bounces at lists.re-wrenches.org<mailto:re-wrenches-bounces at lists.re-wrenches.org> [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Carl Emerson
Sent: Monday, February 18, 2013 3:01 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] CIS mods

Kirpal,

I understand that they don't behave like A-Si modules.

They are claiming increased performance after soaking.

Regards
Carl Emerson





I don't understand the text as stated.....I am not sure if they are simply referring to a common effect in most thin film panels where for the first few months they can output more than ratings, and then they settle down to what they are rated for, or if they are saying that after a few months the output will increase, once they are "light soaked"?
--
Sunny Regards,
Kirpal Khalsa
NABCEP Certified Solar PV Installer
Renewable Energy Systems
www.oregonsolarworks.com<http://www.oregonsolarworks.com>
On Mon, Feb 18, 2013 at 4:13 PM, Marco Mangelsdorf <marco at pvthawaii.com<mailto:marco at pvthawaii.com>> wrote:
Yes, I saw that.  Sounds like smoke and mirrors to me.

marco
On Mon, Feb 18, 2013 at 1:38 PM, Carl Emerson <Carl at solarking.net.nz<mailto:Carl at solarking.net.nz>> wrote:
Marco.

Did you notice the claim in the text as follows...

The "Light Soaking" Effect
Following an initial period of exposure to sunlight, the CIS light soaking effect will result in higher output than factory spec. This has been proven by field data from around the world

If correct this answers your question...

Time will tell I guess.

Regards
Carl Emerson




Aloha,

Solar Frontier in Japan, the maker of copper-indium-selenium (CIS) mods, claims that their product produces more kWhs per kW installed than crystalline silicon.

http://www.solar-frontier.com/eng/cis/index.html  If you go to the Softbank Field Results on the right tabs area you can download a 4-page PDF report.

I'm wondering if this is a hot-out-of-the-box phenomenon similar to some other non-cSi products and that after X months in the field the output stabilizes at a lower level.

Anyone have any idea or experience with this?

Thanks,
marco

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