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Arizona Powerwall Installs

SSonnentag

Rocket Scientist
Apr 11, 2017
1,732
2,184
Arizona
You guys' installations all look so nice and tidy. Take a look at this mess! LOL! :D

Wiring 2.jpg
Wiring 1.jpg
 

Chancellor32

Member
May 10, 2018
719
485
Queen Creek, AZ
Why? And what changed your mind?
Ultimately I stuck with it because I have wanted solar for years and with their price drop it made my ROI at a level I was comfortable with. Plus I wanted to support the brand. Biggest hesitation was after sales support I have heard horror stories so I’m hoping that only gets better. First month in it looks like my bill dropped about $160.
 
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themakermann

Member
Aug 25, 2019
9
0
phoenix
I assume everyone is installing solar panels. What about the Tesla solar shingles or solar tiles? Are they available and has anyone installed them? Also, how close to running out of availability for the SRP $3600 check? I heard maybe there are only a certain number of slots available for this.
 

JayClark

Member
Aug 6, 2019
224
181
Arizona
I assume everyone is installing solar panels. What about the Tesla solar shingles or solar tiles? Are they available and has anyone installed them? Also, how close to running out of availability for the SRP $3600 check? I heard maybe there are only a certain number of slots available for this.

My house is new, so we didn't consider the solar tiles, I don't think I've heard of anybody in the valley/az installing the solar shingles.

SRP has a page that shows remaining battery rebate reservations. It started at 4500, and seemed to stay close to that upper end for a year or so, but now sits around 3600 it looks like, and I feel like most of these have come in the last few months.
 
Last edited:

Chancellor32

Member
May 10, 2018
719
485
Queen Creek, AZ
I assume everyone is installing solar panels. What about the Tesla solar shingles or solar tiles? Are they available and has anyone installed them? Also, how close to running out of availability for the SRP $3600 check? I heard maybe there are only a certain number of slots available for this.
Solar tiles are a vapor product at this point. Less than like 100 installations. We have a new home so went with the solar panels instead. SRP isn’t close to running out and it will most likely expire before 4,500 use it.
 

miimura

Well-Known Member
Aug 21, 2013
6,262
5,891
Los Altos, CA
That is crazy. My California install is a gutter box, the Gateway, a generation panel, and conduit. There are no disconnects or extra meters in my system. The conduit exiting the right of the frame goes to the Powerwalls. Arizona utility requirements are over the top.

D40x_2018-01-31_002rc.jpg
 

themakermann

Member
Aug 25, 2019
9
0
phoenix

themakermann

Member
Aug 25, 2019
9
0
phoenix
Another question for someone out there. I was wondering if you could mount two power walls on the wall basically touching each other side by side. The reason I ask (I was reading the owners manual) is that I see there is an air inlet on the left side and an air exhaust on the right side. Putting the power walls that close I would think would interfere with the airflow. Is this the case?
 

cwied

Member
Jan 13, 2015
870
621
San Mateo, CA
Thanks for the pics Chancellor. Question....you mention the inverter as a separate unit/box in the garage. I thought Tesla's inverter was inside the Powerwall. Am I wrong?

Chancellor is presumably referring to the solar inverter. The Powerwalls do have their own inverters, but they just handle the batteries, not the solar panels.
 

MP3Mike

Well-Known Member
Feb 1, 2016
15,587
34,215
Oregon
Another question for someone out there. I was wondering if you could mount two power walls on the wall basically touching each other side by side. The reason I ask (I was reading the owners manual) is that I see there is an air inlet on the left side and an air exhaust on the right side. Putting the power walls that close I would think would interfere with the airflow. Is this the case?

No you can't. The install guide has the specs for how far apart they are required to be.

Powerwall Dimensions and Space Requirements
Figure 2: Powerwall 2 Dimensions and Space Requirements
Minimum lateral wall space: 960 mm (38 in)
Minimum clearance from left side (air intake): 50 mm (2 in)
Minimum clearance from right side (air exhaust): 150 mm (6 in)
Minimum clearance above single Powerwall: 50 mm (2 in)
Minimum clearance above side-by-side Powerwalls: 300 mm (12 in)
Minimum clearance between side-by-side Powerwalls: 250 mm (10 in)

Maximum height above ground: 1 m (3.3 ft) to bottom of unit
Maximum slope: +/ – 2° side-to-side; +/– 5° front-to-back
 

woferry

Member
Mar 4, 2019
403
474
San Jose, CA
Curious, the left-most box doesn't look like a normal Gateway, is that really what it is? Main difference is the lack of antennae on the top, do the two boxes share a Neurio or something? The two utility disconnects, seemingly in series with each other, also seems odd, but presumably there are two circuits passing through, with each disconnect switching one of them. Also surprised to see both DC and AC disconnects on the inverters, granted I have a different inverter (Delta Solivia), it has the DC disconnect built-in and the only AC disconnect is the breaker where it connects. But clearly this utility/city seems to be in love with separate AC disconnects, glad that none of those seem to be required in my area.

Just remember whenever you throw one of those big switches, stand off to the side of the box, not in front of it. Something I learned years ago when I did a lot of work involving connecting lighting & sound gear to disconnects. Thankfully I never had one explode on activation, but a helpful tip from the electrician who trained me that I wouldn't have thought of otherwise (especially being right-handed and the levers usually being on the right-side of the box). The other tip was to close your fist and push it up with your palm, so that if the case suddenly became electrified you wouldn't end up involuntarily grabbing the handle.

Oh, and why two Gateways? How many PWs do you have?
 
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SSonnentag

Rocket Scientist
Apr 11, 2017
1,732
2,184
Arizona
Curious, the left-most box doesn't look like a normal Gateway, is that really what it is? Main difference is the lack of antennae on the top, do the two boxes share a Neurio or something? The two utility disconnects, seemingly in series with each other, also seems odd, but presumably there are two circuits passing through, with each disconnect switching one of them. Also surprised to see both DC and AC disconnects on the inverters, granted I have a different inverter (Delta Solivia), it has the DC disconnect built-in and the only AC disconnect is the breaker where it connects. But clearly this utility/city seems to be in love with separate AC disconnects, glad that none of those seem to be required in my area.

Just remember whenever you throw one of those big switches, stand off to the side of the box, not in front of it. Something I learned years ago when I did a lot of work involving connecting lighting & sound gear to disconnects. Thankfully I never had one explode on activation, but a helpful tip from the electrician who trained me that I wouldn't have thought of otherwise (especially being right-handed and the levers usually being on the right-side of the box). The other tip was to close your fist and push it up with your palm, so that if the case suddenly became electrified you wouldn't end up involuntarily grabbing the handle.

Oh, and why two Gateways? How many PWs do you have?

I honestly don't have a great handle on all the boxes the SolarCity/Powerwall folks installed. I'll see if I can figure out more details on what I have labeled as gateways and utility disconnects. I was expecting some sort of documents that would define and explain the system, but that didn't happen. Our site is a bit more complex than the average as we have PV systems an two adjacent buildings, each with their own inverters. The power to both buildings comes to the 400A panel here before splitting off to the second building, making the PV system on the second building completely stand-alone except that it's power somehow feeds back through the PV generation meter on this building before rejoining the grid tie. So the 3 powerwalls do not backup the second building, but there is a feed to our pump house and well. Also complicating the setup is the fact that the Powerwalls replaced a lead acid battery backup system that was in a third building (note the feed to the shed). This "solar shed" housed the LA batteries and two additional inverters/chargers. Frankly, I'm just thankful the Solar City guys were able to figure out the whole mess and everything is working. :)
 
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themakermann

Member
Aug 25, 2019
9
0
phoenix
I honestly don't have a great handle on all the boxes the SolarCity/Powerwall folks installed. I'll see if I can figure out more details on what I have labeled as gateways and utility disconnects. I was expecting some sort of documents that would define and explain the system, but that didn't happen. Our site is a bit more complex than the average as we have PV systems an two adjacent buildings, each with their own inverters. The power to both buildings comes to the 400A panel here before splitting off to the second building, making the PV system on the second building completely stand-alone except that it's power somehow feeds back through the PV generation meter on this building before rejoining the grid tie. So the 3 powerwalls do not backup the second building, but there is a feed to our pump house and well. Also complicating the setup is the fact that the Powerwalls replaced a lead acid battery backup system that was in a third building (note the feed to the shed). This "solar shed" housed the LA batteries and two additional inverters/chargers. Frankly, I'm just thankful the Solar City guys were able to figure out the whole mess and everything is working. :)

Thanks SSonn for taking the time to label everything. I can see I have some work ahead of me to educate myself.
 

Chancellor32

Member
May 10, 2018
719
485
Queen Creek, AZ
I honestly don't have a great handle on all the boxes the SolarCity/Powerwall folks installed. I'll see if I can figure out more details on what I have labeled as gateways and utility disconnects. I was expecting some sort of documents that would define and explain the system, but that didn't happen. Our site is a bit more complex than the average as we have PV systems an two adjacent buildings, each with their own inverters. The power to both buildings comes to the 400A panel here before splitting off to the second building, making the PV system on the second building completely stand-alone except that it's power somehow feeds back through the PV generation meter on this building before rejoining the grid tie. So the 3 powerwalls do not backup the second building, but there is a feed to our pump house and well. Also complicating the setup is the fact that the Powerwalls replaced a lead acid battery backup system that was in a third building (note the feed to the shed). This "solar shed" housed the LA batteries and two additional inverters/chargers. Frankly, I'm just thankful the Solar City guys were able to figure out the whole mess and everything is working. :)
Freak man where are you located here in AZ? Lol three buildings and a shed? You at the base of superstition mountain?
 
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