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  #61  
Old 18 October 2020, 13:36
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Originally Posted by Hot Mess View Post
Can you take some pics of the actual set up? How much space is it taking up and where in your house.
Next to nothing in terms of space.

Most everything is outside.


--


I decided to stack both Powerwalls on the ground (they are also mounted to the wall).

My garbage can takes up more space


--

The plug you see next to the Powerwalls actually has nothing to do with it. That's for my yard watering system. So, the install is super clean.
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Last edited by CV; 18 October 2020 at 13:48.
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  #62  
Old 18 October 2020, 14:34
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CV,
Thank you for the updates and posts. This setup looks awesome. I was considering going with 3-4 walls based on Teslaís recommendation. I noticed Tesla only asked my average monthly bill in $ and not in Kwhr. If you are pretty much self sustaining with 2 walls, I am seriously reconsidering going down to 2 which saves a ton of money. We rarely run AC and have gas heating. Again I appreciate you taking the time to post your progress on this. I am sold this is my next home improvement.
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  #63  
Old 18 October 2020, 14:40
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Their calculator tool is a bit of an up-sell. For our uses, 2 Powerwalls is nice. If (when?) I get an EV truck in the future, having an additional 1 or 2 would be nice to make sure the truck is ready to roll at all times. Even then, though, I think I'll be fine with 2 for the most part.

You're in the PNW though, so having more Powerwalls may be a good idea. Not sure, but the engineer can tell you definitively. Worse case, you can add more if needed.

Check with your power company to see what their net meeting policy is, too. Selling back is just a nice cherry on top.
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Last edited by CV; 18 October 2020 at 14:46.
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  #64  
Old 18 October 2020, 15:00
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Their calculator tool is a bit of an up-sell. For our uses, 2 Powerwalls is nice. If (when?) I get an EV truck in the future, having an additional 1 or 2 would be nice to make sure the truck is ready to roll at all times. Even then, though, I think I'll be fine with 2 for the most part.

You're in the PNW though, so having more Powerwalls may be a good idea. Not sure, but the engineer can tell you definitively. Worse case, you can add more if needed.

Check with your power company to see what their net meeting policy is, too. Selling back is just a nice cherry on top.
I would think adding a wall would be easy should you need the increased energy storage for EVís. Iíve got my eyes on that Nikola truck as well. I keep telling the wife of the cost offsets for electrical and gas to justify he huge upfront costs for the walls and truck.
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  #65  
Old 18 October 2020, 17:02
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36 panels on a 12.24 kW system with 2 Powerwalls.
~2000 sq. ft. home.
36 panels for a 2000 sqft home seems....a lot.

We're still finalizing house build designs, but it'll be close to 4000 sqft, and I'm not sure I need/want 72 panels!

Wait...what size are the actual panels?
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  #66  
Old 18 October 2020, 17:46
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36 panels for a 2000 sqft home seems....a lot.

We're still finalizing house build designs, but it'll be close to 4000 sqft, and I'm not sure I need/want 72 panels!

Wait...what size are the actual panels?
A 4000 sq. ft. house doesn't equal x2 power of a 2000 sq. ft. home . In addition, I went with a slight bump to ensure 100% independence from the grid.

We have these panels: https://www.q-cells.com/en/main/prod..._series04.html
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  #67  
Old 18 October 2020, 18:38
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A 4000 sq. ft. house doesn't equal x2 power of a 2000 sq. ft. home .
I wouldn't know. I still think of electricity as some weird magic.

Our new neighbor is going to be our builder, so it's a simple case of sitting down with him and asking stupid questions.

Good thread!
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  #68  
Old 18 October 2020, 18:55
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Quote:
Originally Posted by nofear View Post
I wouldn't know. I still think of electricity as some weird magic.

Our new neighbor is going to be our builder, so it's a simple case of sitting down with him and asking stupid questions.

Good thread!
Its not magic. It's math. And it's easy math.
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  #69  
Old 18 October 2020, 19:25
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I wouldn't know. I still think of electricity as some weird magic.

Our new neighbor is going to be our builder, so it's a simple case of sitting down with him and asking stupid questions.

Good thread!
It's all good, brother. Just ribbing you a bit. The electricity production is based off of your needs. While your home might use the HVAC a little bit more, it isn't directly proportional to the size. Also, other factors play in, such as where you are on the planet and how much sun you get during the day, as well as building material and insulation.
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  #70  
Old 18 October 2020, 19:36
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I forgot to update final numbers. The Powerwalls are definitely the bigger cost. But, I accept this cost due to my goal of being independent from the grid.

36 panel 12.24 kW solar + inverter: ~$27k
Two (2) Powerwalls: ~$13k
TOTAL: $39,948.75

This price includes all incidental crap like taxes, fees, and labor.
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  #71  
Old 18 October 2020, 21:45
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How do recently manufactured solar panels hold up against, say....hail?
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  #72  
Old 18 October 2020, 21:52
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Hail rating is great. Good up to 25mm size falling at 23 m/s.
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  #73  
Old 20 October 2020, 07:39
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Math is magic.

Great thread
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  #74  
Old 20 October 2020, 17:45
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how do they look on the house? Any way to show us without necessarily showing us anything specific about your home or location?
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  #75  
Old 20 October 2020, 17:59
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They're noticeable if you're paying attention, but don't necessarily draw your attention. I like the way Tesla installs them with a kind of flashing, so it doesn't look robotic on the roof. A much cleaner, natural look rather than blocky. From the front of the house, it's very well obfuscated. You would have to be on the side to get a better look at them.

Example:


This isn't my home, but I would say it looks very similar. Exception being that my powerwalls are installed inside my garage, and not on the exterior (pics above).

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  #76  
Old 20 October 2020, 21:05
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Quote:
Originally Posted by CV View Post
I forgot to update final numbers. The Powerwalls are definitely the bigger cost. But, I accept this cost due to my goal of being independent from the grid.

36 panel 12.24 kW solar + inverter: ~$27k
Two (2) Powerwalls: ~$13k
TOTAL: $39,948.75

This price includes all incidental crap like taxes, fees, and labor.
http://www.socnet.com/showpost.php?p=1058869776&postcount=51

My understanding is youíre trying to disconnect from the grid.

What research have you done in terms of what selling back power pays?

Honest question.

S
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  #77  
Old 20 October 2020, 21:34
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I have to establish an agreement with my power company for net metering. With that in place, I’ll get a check for whatever I place back into the grid over what I consume. I have to look up the rates, but it won’t make me wealthy or anything. That in addition to not having a monthly power bill will be nice.
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  #78  
Old 20 October 2020, 22:08
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Next to nothing in terms of space.

Most everything is outside.


--


I decided to stack both Powerwalls on the ground (they are also mounted to the wall).

My garbage can takes up more space


--

The plug you see next to the Powerwalls actually has nothing to do with it. That's for my yard watering system. So, the install is super clean.
What about heat dispersion?
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  #79  
Old Yesterday, 09:19
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The powerwalls have an internal radiator and fan system. Not much heat overall and they’re pretty quiet. I’ll report back if I notice anything weird.
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