They have not installed the inverters yet. All components were chosen by the Tesla Solar Roof design team.
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Can you take photos of the cabling? I'm really curious how all that connects and how they cable it to the inverters.
Production estimate is listed in mine as well.
FYI, I have pictures in the album in my signature link from my roof. Specifically, pictures #23-33 have a bunch of shots of the rooftop wiring, #20 is the PV Modules (3 tiles each) with the pair of MC4 connectors on them. #23 and several of the roof shots that follow show the Diode Trunk Harness. This is a cable with one or more blocks on it containing the diode(s?) along with a pair of MC4 connectors. Tesla allows 1-4 PV Modules to be connected in series before it has to tie-in to a DTH block. This allows a set of PV Modules to be bypassed (via the diode) should that set be shaded, damaged, etc. #32, for example, shows the highest set of PV Modules connected into the DTH, along with the next 3 diode blocks for the rows of PV Modules still to be installed. #33 is the same DTH just looking farther up the roof, and you can see that two DTHs are chained together to make the run longer. At the ends of each DTH is another MC4 connector. So in the end, there's a pair of MC4 connectors that forms the positive and negative leads of the solar array, and these connect to the Pass Through Box, which feeds the wiring into the attic space. In the attic the arrays connect to Rapid Shutdown Devices, and ultimately connect to the inverters. Arrays can be joined before or after the RSDs as appropriate. In my system, as shown in post #73 on my thread, has 5 RSDs for 6 arrays. S1 and S2 combine before the RSD, the rest have their own RSD, though S4 and S6 combine after the RSDs to create the 4 channels that feed into the two Delta Solivia 5.2 inverters. The 3 attic RSDs are shown during install in picture #44 (Pass Through Boxes were not yet installed, so no roof connection yet), and finished in picture #220. From top-left going clockwise, it's the S1+S2 RSD, the S3 RSD, and the S4 RSD (with the combiner that merges it with the run from the S6 RSD, which comes in from the lower-right), and the black junction box that brings all of the PV wiring together on its way to the inverters (inverters with conduit coming from the attic is shown in picture #49).
I'd rather not go into exact costs, but I was pleasantly surprised to see that the cost was on par with that of a new (high end) roof, plus solar panels. I made a comparison spreadsheet where I itemized seven different quotes.Do you mind sharing the cost of the roof?
I think the diode truck harness is actually a series of maximum power point tracking boost converters. A passive diode would not allow variable numbers of module strings to interconnect. So each box bumps the voltage up to the back haul level (higher voltage is lower resistive loss) and gets each group in the optimum power output. MC4 was originally rated at 600V, but can now do 1,500V.
I haven't seen anything suggesting there's anything active in the harness, and it's definitely not increasing the string voltage above the sum of the panel Vpmax's themselves. Everything in my system is still 600V max, namely the RSDs and the inverter. From the UL listing:
The TSR System electrical system is based on the use of the Tesla-provided "Diode Trunk Harness," which provides one Bypass Diode for every four 1x3 modules. This maintains one bypass diode for every 24 solar cells.
I'd rather not go into exact costs, but I was pleasantly surprised to see that the cost was on par with that of a new (high end) roof, plus solar panels. I made a comparison spreadsheet where I itemized seven different quotes.
Congratulations! You’ll wonder why you didn’t do this years ago! Your savings in grid charges will fund another Tesla! Exciting stuff!Hello All,
Just wanted to chime in here to say that I've pulled the trigger - going for a complete system: Solar Roof plus qty 2 Powerwall 2's. Installation is happening this week!
Wow, talk about timing. I would get your own inspectors after today.Update - they are almost finished with the Tesla Solar Roof install. Roof looks amazing. Next step will be the 2 PowerWalls.
Pictures?Update - they are almost finished with the Tesla Solar Roof install. Roof looks amazing. Next step will be the 2 PowerWalls.
Can you take photos of the cabling? I'm really curious how all that connects and how they cable it to the inverters. What kind of inverter are you are installing?
mike
Pictures?
Can you walk on the roof?Here are before and after pictures. The aftershot was taken the day before the finishing touches were done (ridge, cleaning etc). The two pictures were taken within 5 days from each other.
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