[Power] Power Digest, Vol 12, Issue 1

Thu Jun 28 02:13:19 EDT 2012

Hello Richard. Further to our conversation a couple of weeks I would
like to use one here I will send my details privately. I will also
make it available to the OLPC NZ list. I know there are a couple of
other people who have done some work comparing the outout of CIS and
Crystalline solar panels a few years ago who might be interested in
furthering their tests

On 6/28/12, power-request at lists.laptop.org
<power-request at lists.laptop.org> wrote:
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> Today's Topics:
>
>    1. Samples of new Solar panel avalable (Richard Smith)
>    2. Re: Samples of new Solar panel avalable (Mike Lee)
>    3. Re: Samples of new Solar panel avalable (Richard A. Smith)
>    4. Re: Samples of new Solar panel avalable (Mike Lee)
>    5. Re: Samples of new Solar panel avalable (Richard Smith)
>    6. Re: Samples of new Solar panel avalable (Sameer Verma)
>    7. Re: Samples of new Solar panel avalable (Rabi Karmacharya)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 27 Jun 2012 13:40:03 -0400
> From: Richard Smith <richard at laptop.org>
> To: Discussions on XO laptop power <power at lists.laptop.org>
> Subject: [Power] Samples of new Solar panel avalable
> Message-ID:
> 	<CA+vq8reZ-EV2QX21pyQye9DX4mFc9456XKuZbhhTaQtDWuk0HA at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> I have some samples of a new solar panel for the XO.  Its meant to be
> a 2nd source for the existing solar panel. I'd like to offer these
> samples her to people on the power list first.
>
> I need to test how robust these new panels will be in the field so if
> you request one then I need you to use it as much as you can.  I need
> you to try and carry it with you and see how it fairs with normal wear
> and tear.  These panels fold in half and have a canvas cover.  I'll
> put up a picture and send on a link.
>
> I don't want you to intentionally try to break it but don't be gentle
> with it by any means.
>
> If you are interested then please send me your shipping address and
> your expected use pattern.
>
> There are, however,  a few issues with these samples.  The output
> cable on these panels is very short, almost too short. This will be
> corrected on the production unit.  Also there was some adhesive
> leakage around the PV material this makes the panel look a bit ugly
> but its still functional.
>
> --
> Richard A. Smith
> One Laptop per Child
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 27 Jun 2012 13:45:10 -0400
> From: Mike Lee <curiouslee at gmail.com>
> To: Discussions on XO laptop power <power at lists.laptop.org>
> Cc: Kim Toufectis <kimtoufectis at gmail.com>
> Subject: Re: [Power] Samples of new Solar panel avalable
> Message-ID:
> 	<CAKoVBRVWgeFxFR2eyXEzuzEqkvjjZpvYGyDiKXx8D7XBGtfcJA at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Please count me in. A local club member just did a large solar installation
> on his roof here in D.C. and is close to the technology. And I always like
> to tinker.
>
> Mike Lee
> 2109 Hermitage Avenue
> Silver Spring, MD 20902
> 301-933-8456
>
> Mike
>
>
>
> On Wed, Jun 27, 2012 at 1:40 PM, Richard Smith <richard at laptop.org> wrote:
>
>> I have some samples of a new solar panel for the XO.  Its meant to be
>> a 2nd source for the existing solar panel. I'd like to offer these
>> samples her to people on the power list first.
>>
>> I need to test how robust these new panels will be in the field so if
>> you request one then I need you to use it as much as you can.  I need
>> you to try and carry it with you and see how it fairs with normal wear
>> and tear.  These panels fold in half and have a canvas cover.  I'll
>> put up a picture and send on a link.
>>
>> I don't want you to intentionally try to break it but don't be gentle
>> with it by any means.
>>
>> If you are interested then please send me your shipping address and
>> your expected use pattern.
>>
>> There are, however,  a few issues with these samples.  The output
>> cable on these panels is very short, almost too short. This will be
>> corrected on the production unit.  Also there was some adhesive
>> leakage around the PV material this makes the panel look a bit ugly
>> but its still functional.
>>
>> --
>> Richard A. Smith
>> One Laptop per Child
>> _______________________________________________
>> Power mailing list
>> Power at lists.laptop.org
>> http://lists.laptop.org/listinfo/power
>>
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> ------------------------------
>
> Message: 3
> Date: Wed, 27 Jun 2012 13:54:41 -0400
> From: "Richard A. Smith" <richard at laptop.org>
> To: power at lists.laptop.org
> Subject: Re: [Power] Samples of new Solar panel avalable
> Message-ID: <4FEB48E1.6060008 at laptop.org>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> On 06/27/2012 01:45 PM, Mike Lee wrote:
>> Please count me in. A local club member just did a large solar
>> installation on his roof here in D.C. and is close to the technology.
>> And I always like to tinker.
>>
>> Mike Lee
>> 2109 Hermitage Avenue
>> Silver Spring, MD 20902
>> 301-933-8456
>
> Thanks.  Note you don't have to send your address to the list if you
> don't want to.  You can send it directly to me.
>
> --
> Richard A. Smith  <richard at laptop.org>
> One Laptop per Child
>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 27 Jun 2012 17:22:30 -0400
> From: Mike Lee <curiouslee at gmail.com>
> To: Discussions on XO laptop power <power at lists.laptop.org>
> Subject: Re: [Power] Samples of new Solar panel avalable
> Message-ID:
> 	<CAKoVBRURbcFTB-WG6JEh6t6KB-pfhbRjnrvkNf+m-aZK38jmRA at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Following up on this: is it a requirement to pair this panel with the
> original panel? Fortunately we do have a few. I think I have two of the
> original panels and one with the embedded voltage regulator.
>
> Mike
>
> On Wed, Jun 27, 2012 at 1:40 PM, Richard Smith <richard at laptop.org> wrote:
>
>> I have some samples of a new solar panel for the XO.  Its meant to be
>> a 2nd source for the existing solar panel. I'd like to offer these
>> samples her to people on the power list first.
>>
>> I need to test how robust these new panels will be in the field so if
>> you request one then I need you to use it as much as you can.  I need
>> you to try and carry it with you and see how it fairs with normal wear
>> and tear.  These panels fold in half and have a canvas cover.  I'll
>> put up a picture and send on a link.
>>
>> I don't want you to intentionally try to break it but don't be gentle
>> with it by any means.
>>
>> If you are interested then please send me your shipping address and
>> your expected use pattern.
>>
>> There are, however,  a few issues with these samples.  The output
>> cable on these panels is very short, almost too short. This will be
>> corrected on the production unit.  Also there was some adhesive
>> leakage around the PV material this makes the panel look a bit ugly
>> but its still functional.
>>
>> --
>> Richard A. Smith
>> One Laptop per Child
>> _______________________________________________
>> Power mailing list
>> Power at lists.laptop.org
>> http://lists.laptop.org/listinfo/power
>>
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> ------------------------------
>
> Message: 5
> Date: Wed, 27 Jun 2012 17:57:12 -0400
> From: Richard Smith <richard at laptop.org>
> To: Discussions on XO laptop power <power at lists.laptop.org>
> Subject: Re: [Power] Samples of new Solar panel avalable
> Message-ID:
> 	<CA+vq8rdKYEyJWPbWi99t8Gth4jYNW5oex80RhE9FEcCnDh33yg at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> On Wed, Jun 27, 2012 at 5:22 PM, Mike Lee <curiouslee at gmail.com> wrote:
>> Following up on this: is it a requirement to pair this panel with the
>> original panel? Fortunately we do have a few. I think I have two of the
>> original panels and one with the embedded voltage regulator.
>
> Only if you want to.  I've done the comparison work already.  The
> rated power on this panel is 15W but its a poly-Si panel so the
> thermal derate is high.  The net result is that under good sun you
> only get 9-10W.  Which is still better than the original a-Si panel
> but only by 1 - 2 Watts.
>
> I'll gladly take more comparison test data though.  You can use my
> olpc-panelpwr-log script to monitor the amount of power you deliver to
> the battery.
>
> --
> Richard A. Smith
> One Laptop per Child
>
>
> ------------------------------
>
> Message: 6
> Date: Wed, 27 Jun 2012 16:39:56 -0700
> From: Sameer Verma <sverma at sfsu.edu>
> To: Discussions on XO laptop power <power at lists.laptop.org>
> Subject: Re: [Power] Samples of new Solar panel avalable
> Message-ID:
> 	<CAFoGK8Few2OP=wM=O6QHv1GN90fatqLzgvr7RxrxhgwK84a_LQ at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> On Wed, Jun 27, 2012 at 10:40 AM, Richard Smith <richard at laptop.org> wrote:
>> I have some samples of a new solar panel for the XO. ?Its meant to be
>> a 2nd source for the existing solar panel. I'd like to offer these
>> samples her to people on the power list first.
>>
>> I need to test how robust these new panels will be in the field so if
>> you request one then I need you to use it as much as you can. ?I need
>> you to try and carry it with you and see how it fairs with normal wear
>> and tear. ?These panels fold in half and have a canvas cover. ?I'll
>> put up a picture and send on a link.
>>
>> I don't want you to intentionally try to break it but don't be gentle
>> with it by any means.
>>
>> If you are interested then please send me your shipping address and
>> your expected use pattern.
>>
>> There are, however, ?a few issues with these samples. ?The output
>> cable on these panels is very short, almost too short. This will be
>> corrected on the production unit. ?Also there was some adhesive
>> leakage around the PV material this makes the panel look a bit ugly
>> but its still functional.
>>
>> --
>> Richard A. Smith
>> One Laptop per Child
>> _______________________________________________
>> Power mailing list
>> Power at lists.laptop.org
>> http://lists.laptop.org/listinfo/power
>>
>>
>
> We'll test one at OLPC SF.
>
> I have an original (without a voltage cut-off controller though). I
> have a Brunton 26W foldable and that works like a champ, but it has to
> be folded and unfolded like a a picnic tablecloth.
> http://www.backcountry.com/brunton-solaris-26-solar-panel
>
> cheers,
> Sameer
> --
> Sameer Verma, Ph.D.
> Professor, Information Systems
> San Francisco State University
> http://verma.sfsu.edu/
> http://commons.sfsu.edu/
> http://olpcsf.org/
> http://olpcjamaica.org.jm/
>
>
> ------------------------------
>
> Message: 7
> Date: Wed, 27 Jun 2012 20:34:55 -0400
> From: Rabi Karmacharya <rabi at olenepal.org>
> To: Discussions on XO laptop power <power at lists.laptop.org>
> Cc: Subir Pradhanang <subir.pradhanang at olenepal.org>,	Basanta Shrestha
> 	<basanta.shrestha at olenepal.org>, ram <ram at olenepal.org>
> Subject: Re: [Power] Samples of new Solar panel avalable
> Message-ID:
> 	<CAGC_DqBxUQd5PkfYPYYkddaWTFEh-6ZaZOwo95tqEcXoDh9kgw at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Richard,
>
> If you can ship it internationally, we'd be happy to test one in a school
> in Nepal.
>
> Our address:
> PO Box 8975, EPC 2394
> Kathmandu, Nepal
>
> Cheers.
>
> Rabi Karmacharya
> Executive Director
> OLE Nepal
> T: +977.1.5544441
> C: 98511.04280
> S: rabzkarma
> http://www.olenepal.org
>
> ***** Visit our Digital Library at http://www.pustakalaya.org *****
>
>
>
> On Wed, Jun 27, 2012 at 1:40 PM, Richard Smith <richard at laptop.org> wrote:
>
>> I have some samples of a new solar panel for the XO.  Its meant to be
>> a 2nd source for the existing solar panel. I'd like to offer these
>> samples her to people on the power list first.
>>
>> I need to test how robust these new panels will be in the field so if
>> you request one then I need you to use it as much as you can.  I need
>> you to try and carry it with you and see how it fairs with normal wear
>> and tear.  These panels fold in half and have a canvas cover.  I'll
>> put up a picture and send on a link.
>>
>> I don't want you to intentionally try to break it but don't be gentle
>> with it by any means.
>>
>> If you are interested then please send me your shipping address and
>> your expected use pattern.
>>
>> There are, however,  a few issues with these samples.  The output
>> cable on these panels is very short, almost too short. This will be
>> corrected on the production unit.  Also there was some adhesive
>> leakage around the PV material this makes the panel look a bit ugly
>> but its still functional.
>>
>> --
>> Richard A. Smith
>> One Laptop per Child
>> _______________________________________________
>> Power mailing list
>> Power at lists.laptop.org
>> http://lists.laptop.org/listinfo/power
>>
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>
>
> End of Power Digest, Vol 12, Issue 1
> ************************************
>