J
John Allen
It is frustrating that you cant plan the installation in PV*Sol yet, it will be a question for the manufacturer when I get to see them.....
segen's training for them was apparently appalling, full of misinformation.
Key points of info they must have got wrong being the number of bypass diodes, and apparently indicating that they would need solar edge to work, which is complete bobbins.
From what I can see they probably either split the square panel into 2 and leave the triangle as a whole panel, or split tha square panel into 4 and the triangle into 2 with the bypass diodes, which would give equal numbers of cells, voltage, etc between the strings of cells. There are no clues to this that I can see in the documentation.
Key points of info they must have got wrong being the number of bypass diodes, and apparently indicating that they would need solar edge to work, which is complete bobbins.
From what I can see they probably either split the square panel into 2 and leave the triangle as a whole panel, or split tha square panel into 4 and the triangle into 2 with the bypass diodes, which would give equal numbers of cells, voltage, etc between the strings of cells. There are no clues to this that I can see in the documentation.
I'm planning on going to the training later this week.
I'll see what info I can gather. Hopefully they've upped their game.
I
Ian-LS
Yes the training was a bit of a mess, trying to show off their design tool and weren't able to answer basic design questions about the triangle panels.
Hopefully they will have gone away and done a bit more background research into the panels so they can ask installers questions better.
Hopefully they will have gone away and done a bit more background research into the panels so they can ask installers questions better.
I
Ian-LS
Last Thursday i went. Supposed to be an all morning session, started at 10 am done by 11.20 am
Did you get a free Toblerone?
I got a free Boost bar once for chatting about the iBoost for 10 minutes!
I
Ian-LS
No actually.....think I'll ring Segen to complain. Where is my Toblerone!
E
Earthstore
If you went on a training day for those panels that produce "at night" wonder if you would get After Eights?
probably, but I bet it'd just be packet of empty after eight sachets.
There's always more empty ones than full ones left in the box isn't there! I mean, how hard is it to throw the wrapper in the bin?!!
OT - I heard today that the triangles are not handed and that the square panels are actually rectangular, interesting though, if a little pricey - bit niche I guess?
OT - I heard today that the triangles are not handed and that the square panels are actually rectangular, interesting though, if a little pricey - bit niche I guess?
Polys : The 'Square' panels are based on a 7 x 8 (56 cell) module and the "triangular" 7 x 7 (7+6+5+4+3+2+1 = 28 cells) so they are not 'handed' both 156x156mm cells
Monos: The 'Square' panels are based on a 8 x 9 (72 cell) module and the "triangular" 8 x 8 (8+7+6+5+4+3+2+1 = 36 cells) so they are not 'handed' both 125x125mm cells
Monos: The 'Square' panels are based on a 8 x 9 (72 cell) module and the "triangular" 8 x 8 (8+7+6+5+4+3+2+1 = 36 cells) so they are not 'handed' both 125x125mm cells
I
Ian-LS
Still need to get my head around which inverters can be used with them, not sure they would make sense financially if you had to use solar edge.
any string inverter.
the cells are identical, the ampage is identical, the voltage on the triangular panel is exactly half the voltage on the square panel, so it's no different at all to having 3 strings of 20 cells connected in series in a standard 60 cell panel.
If segen really were saying they thought they needed solar edge, then they need to get some better trained technical staff.
what you couldn't do is to run a triangular and a square panel in parallel for battery charging or something, which is really where a lot of the ingrained folk memory of panels needing to have identical voltages comes from I think.
the cells are identical, the ampage is identical, the voltage on the triangular panel is exactly half the voltage on the square panel, so it's no different at all to having 3 strings of 20 cells connected in series in a standard 60 cell panel.
If segen really were saying they thought they needed solar edge, then they need to get some better trained technical staff.
what you couldn't do is to run a triangular and a square panel in parallel for battery charging or something, which is really where a lot of the ingrained folk memory of panels needing to have identical voltages comes from I think.
T
t4sltd
Went to Segen training this afternoon and it was very poor. Apparently you can model in PVSys by using the 'square' panel and replacing every 2 triangles with one 'square' one. There is only one triangle module available meaning the cell sub-strings run up-down or left-right depending which way you orientate the panel. This means it is almost impossible to design a system with good shade performance as sub-strings don't all point the same way. The panels made in China from unknown Chinese cells and the mounting system manufacturers have not yet said in writing they support them.
I
Ian-LS
That was my conclusion from the training. They are a watch this space kind of panel.
T4sltd, were you in Nottingham? If so, we were at the same 'training'.
The presentation was more aimed at how to design using the Segen portal. We didn't really get anything from the meeting which we didn't already know or couldn't have found out.
My conclusion: Excellent option for a lot of roofs. They look great but they are problematic when it comes to shading. No issue designing with a string inverter either.
They seemed to make a lot of noise about how the panels clamp to the rail. Seems pretty straightforward to me and I can't see any issue with it. I doubt the mounting system companies will have an issue with it either.
The presentation was more aimed at how to design using the Segen portal. We didn't really get anything from the meeting which we didn't already know or couldn't have found out.
My conclusion: Excellent option for a lot of roofs. They look great but they are problematic when it comes to shading. No issue designing with a string inverter either.
They seemed to make a lot of noise about how the panels clamp to the rail. Seems pretty straightforward to me and I can't see any issue with it. I doubt the mounting system companies will have an issue with it either.
I
Ian-LS
Should have called it segen design tool training with a few its about triangle panels
S
SRE
I had a quick look at Segen again yesterday, to see the triangular panels but all of Segen's stock is just so expensive I haven't bought off them other than when I'm desperate for about 12 months now.
I asked them to review pricing again yesterday, out of interest more than anything else and they came back to me and said as I bought more the prices would reduce and pointed out my 6.5% discount. I pointed out that 6.5% discount was equivalent almost to what my customers could pick up panels for so it was hardly a discount and I was hardly likely to pay £10/panel extra for my next few jobs until they came in line with everyone else.
How do you all manage to buy from Segen??
I asked them to review pricing again yesterday, out of interest more than anything else and they came back to me and said as I bought more the prices would reduce and pointed out my 6.5% discount. I pointed out that 6.5% discount was equivalent almost to what my customers could pick up panels for so it was hardly a discount and I was hardly likely to pay £10/panel extra for my next few jobs until they came in line with everyone else.
How do you all manage to buy from Segen??
We've only bought a few specific items from them since this time last year when they suddenly ramped up their panel prices for panels they already held in stock in response to the EU actions. blatant profiteering IMO, and it's come back to bite them as installers have deserted them in droves from what I can see.
still not found anyone with a portal that's anything like as good as Segen's though.
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