Hi Alison and group, Alex Fiedler at Solarhome.com.au does have available MJ cells for sale.Alex is as well now working on the minute cathode welding requied...
This info comes straight off Spectrolabs FAQs Q: What is the maximum temperature a concentrator solar cell can handle? A: During assembly, the cells can be...
... Right, something like that, although not at that price ... Simplicity is the key to keeping the cost down. There is another PV concentrator developer in...
The heat sink cement was something that Greg said was critical and he had solved it and it was a trade secret how. My first thoughts would be to try the cement...
I wonder if thes snippits (taken fron the GGE link given earlier) give us a clue: "Silicon cells loose efficiency at about 0.5% / deg C and triple junction...
Hi Alison, Your comment about cooling the cell and mention of a copper backing brought something I saw earlier to mind. Could you have a quick look at the...
Dave, Couldn't we just buy a computer module, write to an EEPROM on the module through an interface (serial/usb?). I am sure that there are loads that are just...
... Unfortunately, a lot of useful information has been removed from the current version of the site Some of the old pages can be accessed using the...
Hi Alison, Thanks for that info, it certainly would make a difference if it is U$10. I have asked them to quote me prices so we will see what they come back...
Hi Greg, Hopefully with enough active participants, we can still do this is a lot less than 2 years. Greg seemed to be largely working on his own - pooling our...
Yes, all of that has to be handled by a computer that controls the 2 electric motors. Astronomical telescopes are moved in predetermined arcs, but CPVs have to...
... OK, just some confusion in use of language. You wrote this reply at the same time as I wrote my followup ... <snip> OK ... Spectrolab do not quote prices...
... Hi Dave, Great input. You are quite right, I am a flyweight compared to others on this group which is one of the reasons I created it. Please excuse my ...
I like the drawing of the mount. It has substantial support for the weight, and enough triangulation to resist stong wind forces. My proposed chain drive could...
... Correction ... The cells are not 30.25mm square (your error). They are 30.25 square mm (5.5mm square). Eighty cells require 24.2 square cm which makes your...
Hi all, in this fast growing group . It will be interesting to see just what can be achieved. Perhaps a real lot but I don't believe we should delude ourselves...
I think if you are going to try and reinvent the wheel, you might at least try and learn as much about how the SunCube does it as possible. All your questions...
Hi Alison, I was referring to the square area of the cells ie. 30.25mm squared so your formula should be: 30.25mm square area x 80 = 2420mm square area or put...
... SunCube is using 10mm x 10mm cells, which I think are priced at about USD20 each ... Too many, too expensive Also, your geometry does not work. With 400:1...
I have just posted an email to spectrolab to see what they can offer but solarhome.com.au are also available. Always nice to have choice. Chris ... ...
TJ test kits are available directly from Spectralab http://www.spectrolab.com/DataSheets/TerCel/PV_Concentrator_Module.pd f ... debacle. I ... test ... anyone ...
Ian, I was researching solar energy producers and found a company in California - SolFocus (http://solfocus.com/). They also specialize in CPV. They have Gen1...
Hi Greg, Yeah, you are right about the certification. My idea was something along the lines of getting a small system (1000Watt) of flatties put in by a...
Hi Ian, Welcome, I think that pretty much everything is available but pricing is a bit unknown at the moment. Since I started this group just yesterday, I...
I would say the biggest hurdle to be overcome would be certification. If a stand-a-lone system then no one need know, but to be grid connected will be a...
Thanks for the start Chris. I'm a late player in the SunCube debacle. I initially thought it was just me having trouble finding relevant test specifics from...
Hi just noticed there is no reference to the Sunball Yahoo group on Green and golds Web Page and there has been no posts today. I really believe Greg was not...
Some quick back of envelope calculations based on Solarhome specs and prices. Lets start off by assuming a 1 square metre array of fresnel lenses. That gives...
Hi and welcome, This is the first group that I have ever setup so please be patient while I work through any teething issues. I setup this group in response to...
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