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So, if you apply for and obtain an SGIP rebate on PW's 1 and 2 in a first install (e.g., under the small-scale residential allocation), it sounds like you can file for and obtain a second SGIP rebate on PW 3 in a second install (e.g., again under small-scale residential), as long as your entire...

Tesla sent out "the guy" today and he managed to solve the problem. Apparently it was not a CT issue, but a wiring issue. GW1 was apparently communicating with PW bank 2 and GW2 was communicating with PW bank 1. Very odd.

We'd just like to have one electric car backed-up in case of an emergency, namely a fire evacuation. I doubt we'd have much if anything else running at that time (other than maybe internet and a TV so we can track the fires). Backing up additional cars and/or other toys such as a pool pump...

If we divide by 240 volts, then we are 1/2 of 107.33 amp, i.e., our max amp draw over the course of the last year would be 53.65 amps. That's nowhere near 200 amps. I feel like I must be missing something because this should be a no-brainer to put everything behind a single gateway, despite...

Ok - I think I figured out how to do the green button calculation to arrive at avg. load in amps: (Total monthly kWh) / hours in month * 1,000 (convert to watts) / 240 (local mains voltage). So, for January, we would have: 1,138 kWh (total Jan. 2020 usage) / 744 (hours in Jan.) * 1,000 / 120...

@Vines - I pulled the green button data for the 12 months prior to our solar install (May 2020 to May 2019) (I can't download anything recent) and our maximum kWh usage for any one block is 3.22 kWh. The blocks are in 15 minute increments, so I'm assuming that's 12.88 kWh instantaneous. How do...

As an update, I made a mistake on the first calculation that our well pump was 2 hp, when it is really 1/2 hp. Making that change dropped our "amps" calculation to 198.43 per Generator Sizing Tool | Generator Sizing Calculator for Home Use and Whole House: The whole document is attached...

Totals got cut off - a printout of the gensizer.assurancepower.com website printout is below:

@Vines - in reading through other posts, some have suggested that, while their houses have 400 amp service, the house may actually only need less than 200 amps of service, whereby it would essentially be possible to split the 400 amp service in half and place all the loads behind a single 200...

@power.saver - yes - grid failure with orange x over the grid and an orange rectangular box around the outside. @Vines - yes, and thank you for the suggestion; one reason I decided to try cutting power to one system to see if they were truly independent (overheard Tier 2 support telling the...

Later this morning I turned off the first AC disconnect to try and isolate the two systems in their entirety. Doing this turned off the electricity to the sub-panels behind GW1 (house electricity turned off in certain areas), it turned off GW1, and I could hear the PW1 bank click (I'm assuming...

Here at the readings this morning in "back-up" only mode: SolarEdge app says the combined solar production for our two inverters is about 8.01 kW, so I think the aggregate solar production shown in the Tesla app (3.8 kW + 3.5 kW = 7.3 kW) (and ready by the CT's?) should be close to being...

When I put both GWs into "Backup-Only" mode during the day, all solar from each inverter will charge the respective PWs behind each GW, and the sub-panels behind each GW are powered by the grid. The solar values through the Tesla app have been close to being accurate (each shows about 1/2 of...

@power.saver. You mention that the "negative home in the first one is due to the grid showing negative with no other source". Both of these GWs tie into a common 400 amp sub-panel. Could it be that the GW on the left is seeing the negative going to the grid from the GW on the right (due to...

It does go away (both GWs in "Back-Up only" and both PWs show "Standby"): Left GW: Right GW: The unknown is the actual problem, and how to fix it?

Continuing to do more troubleshooting on my end - I don't think the issue is with the incoming solar or their CTs. Sun is currently down, and I logged into each GW (both are in "Self-Powered" mode) in laptops sitting next to each other and I can see the following: The GW on the left shows a...

@h2ofun - did you order your system directly from Tesla? If so, do you know which office is doing the install? Tesla or its subs have been out to our property 13 times now in the last 6 months and we're still not there yet (and I don't have any indication they know what the problem is or how...

So Tesla service came out on Thursday ALL DAY and apparently checked all the lines, replaced and checked the CT's and did a software update, but nothing changed with respect to the functionality of the system. I overheard Tier 2 tell the installers they had a crossed wire somewhere, but the...

Telsa sent the same crew out to troubleshoot the issue with our Powerwall install, and they don't seem to understand the issue. When I talked to them this morning about a potential "CT" issue, their only response was that they are "factory" units and don't need to be changed. I think they...

@h2ofun - yes, I think SE has the capability of aggregating more than one inverter per property. It's actually quite nice. On the layout page, I can see both arrays, the individual production for each inverter, each panel, and their individual production. Kudos to SolarEdge - great product...

Yes - two SE solar inverters. I think the SE app just aggregates the production reported by each inverter into a single amount/graph accessible by the SE app.

No - each app will show its respective consumption. For example, yesterday morning, I turned both gateways into "Backup-Only" mode and we had the following readings: Bank 1 (charging) - Solar 3.6 kW (all solar production was going to charge the battery in bank 1 - see same # below) - Grid 1.0...

Vines - thanks for the responses. I'll take a look at pulling the deadfronts off the panels tomorrow to see if I can find the CTs. In the meantime, I've added some additional information that will probably clarify the problem, so maybe I can make my search more specific. I ran some tests...

Attached are the wiring diagrams. When you mention "CT", that's a "current transformer"? I don't know for sure, but I don't think we have a CT in our main service panel - the only thing I can see is a "Service Disconnect" switch. How do I check to see if any of the PV CT assigned to GW1 is...

I won't go into too many details re the background, but we have had A LOT of problems with this install over the last year, including 12 visits by Tesla and/or its sub-contractors in the last 7 months. System Setup: We have a 400 amp service outside that feeds a 400 amp sub-panel in our...

Yes - it's the height of the room; not the panel. I'm not saying Tesla is wrong about their interpretation of the electrical code, I'm just saying that Tesla reviewed our layout, electrical system, and I specifically told them about the height of the install area, etc. and Tesla provided a...

Thanks for all the recommendations! A little background - I live in Southern California and my drive is mostly through the canyons (one of the reasons I went with the P85D (late 2014) was to get the stiffer "+" suspension system). I think I'm inclined to stay with a higher performing tire, as...

The subpanel is located in our "crawl" space and is mounted to a wall that has a 5.5 ft floor-to-ceiling height. Our "crawl" is rather large - moving it 20 ft gets us to a section of the crawl that's about 7ft -8ft floor-to-height clearance and apparently code compliant. The subpanel is a 400...

Long story short is that we ordered our Powerwalls back in February, and finally had an install date of Sept. 15, 2020. The team came out to do the install, but decided that one of our sub-panels needed to be moved about 20 feet for code compliance because the height was 5.5 foot instead of 6.5...

I recently bent the front right rim hitting a rock driving through the canyons and it needs replacement. Currently have 21" carbon turbines; staggered. I was told that Tesla charges $2k to replace one rim. A rep at America's Tire suggested I go with TSW Aileron, which run $400/rim ($2k for an...

We've had an awful experience with Tesla - our installation was not run of the mill, and I spent quite a bit of time educating the sales people about how our system would work with a whole home backup (they would not let me talk with engineering directly). It probably took 3-4 months to get a...