BajaNomad
Not logged in [Login - Register]
Go To Bottom

Printable Version  
Author: Subject: Tesla Powerwall 2
bajaguy
Select Nomad
*******




Posts: 8744
Registered: 9-16-2003
Location: Carson City, NV/Ensenada - Baja Country Club
Member Is Offline

Mood: must be 5 O'clock somewhere in Baja

[*] posted on 10-29-2016 at 05:55 PM
Tesla Powerwall 2


https://techcrunch.com/2016/10/28/teslas-powerwall-2-packs-o...
View user's profile
DENNIS
Honored Nomad
*********




Posts: 29512
Registered: 9-2-2006
Location: Punta Banda
Member Is Offline


[*] posted on 10-29-2016 at 06:57 PM




The new target for enterprising thieves. Maybe hang it inside the garage?




"YOU CAN'T LITTER ALUMINUM"
View user's profile
Russ
Select Nomad
*******




Posts: 6486
Registered: 7-4-2004
Location: Punta Chivato
Member Is Offline


[*] posted on 10-29-2016 at 07:01 PM


It's great that there are more and more options for our full time solar systems. I just bought new batteries 2 years ago so I'll have some time to see how these Tesla power cells hold up and if they're going to be cost effective. Maybe as new innovations are developed the cost of lead acid batteries will become more reasonable. I hate the maintenance of lead acid batteries. Telsa's roof tiles seem like an attractive option too.



Bahia Concepcion where life starts...given a chance!
View user's profile
ehall
Super Nomad
****




Posts: 1164
Registered: 3-29-2014
Location: Buckeye, Az
Member Is Offline

Mood: It's 5 o'clock somewhere

[*] posted on 10-30-2016 at 06:23 AM


Technology keeps pushing forward. Tesla new car with roof solar panels is interesting also.
View user's profile
larryC
Super Nomad
****




Posts: 1223
Registered: 8-11-2008
Location: BoLA
Member Is Offline


[*] posted on 10-30-2016 at 07:31 AM


Didn't we just go over this stuff a month or 2 ago? Or is this something new from Tesla since then?



Off grid, 12-190watt evergreen solar panels on solar trackers, 2-2812 stacked Outback inverters, 6-2v enersys 125-33 2000 amp hour AGM batteries, FM 80 and MX 60 Outback charge controllers, X-240 Outback transformer for 220v from inverter, 6500 watt Kubota diesel generator.
View user's profile
Fastbird
Junior Nomad
*




Posts: 35
Registered: 10-20-2013
Location: Chivato
Member Is Offline


[*] posted on 10-30-2016 at 07:46 AM
Tesla Not Marketing for OFF Grid Systems


The Tesla powerwall system is meant for typical grid tied solar systems where the panels are in series to get a voltage in the 400 volt range. So if you want to use this Tesla battery in an off grid system you need to get the voltage from the panels or batteries up to about 400 volts . Then the voltage output has to be 240/120 for use in your house.
If you want Lithium Iron P04 (LFP) batteries , they are typically 3.2 volts per cell and of varying Ahs up to 700. 8 of the 3.2 volt cells will get you to a 24 volt nominal system. Thus you can use your present inverter and solar charge controller. Then you should have a BMS ( computer) that keeps the cell voltages balanced. There is no maintenance and you can draw out 80% without shortening the life/cycles.
Specifications[VERY HARD to FIND!)
Since March 2016, there was only a single model: the 6.4 kWh version for daily cycle applications[7], before the Powerwall 2 was introduced:
Model Price Voltage Current Power Energy Energy per price Operating temp. Weight Dimensions (H x W x D)
1 US$3,000 350450 V DC 9.5 A 3.3 kW 6.4 kWh
2.13 Wh/US$ −4 to 110 F (−20 to 43 C) 214 lb (97 kg) 51.3 in 34 in 7.2 in (130 cm 86 cm 18 cm)
2 US$5,500 7kW peak / 5kW continuous 13.5 kWh


View user's profile
StuckSucks
Super Nomad
****


Avatar


Posts: 1322
Registered: 10-17-2013
Location: 'Gundo Local
Member Is Offline


[*] posted on 10-30-2016 at 09:38 AM


Tesla Unveils its New Line of Camouflaged Solar Panels

Also, scroll down for more on the Powerwall.




View user's profile Visit user's homepage
MulegeAL
Nomad
**




Posts: 182
Registered: 8-25-2009
Location: PDX/Mulege
Member Is Offline


[*] posted on 10-30-2016 at 01:42 PM


I wonder if they have made any progress with shading issues that lead to large voltage output drops.

Seems like having so many discrete tiles/panels could offer some wiring/gridding options to deal with that. I have no idea how these tiles interconnect.
View user's profile
soulpatch
Elite Nomad
******




Posts: 4586
Registered: 7-30-2005
Location: Nayarit
Member Is Offline


[*] posted on 10-30-2016 at 08:23 PM


Quote: Originally posted by MulegeAL  
I wonder if they have made any progress with shading issues that lead to large voltage output drops.

Seems like having so many discrete tiles/panels could offer some wiring/gridding options to deal with that. I have no idea how these tiles interconnect.


I imagine it would be easy enough to optimize every 60 or 72 cells to mitigate shading issues.
That would be a minor cost easily offset by the increase in productivity.
View user's profile
soulpatch
Elite Nomad
******




Posts: 4586
Registered: 7-30-2005
Location: Nayarit
Member Is Offline


[*] posted on 11-1-2016 at 05:48 AM


This product is also out there and is in production already, to my understanding.
View user's profile

  Go To Top


For high speed satellite internet in Baja call +1.6197170810 - or click here to email sistemassatelitales@hotmail.com



Tijuana Walking Tours - on Meetup.com


 






All Content Copyright 1997- Q87 International; All Rights Reserved.
Powered by XMB; XMB Forum Software © 2001-2014 The XMB Group






"If it were lush and rich, one could understand the pull, but it is fierce and hostile and sullen. The stone mountains pile up to the sky and there is little fresh water. But we know we must go back if we live, and we don't know why." - Steinbeck, Log from the Sea of Cortez

"People don't care how much you know, until they know how much you care." - Ivan R. Misner, Ph.D

"You can easily judge the character of others by how they treat those who they think can do nothing for them or to them." - Malcolm Forbes

"Let others lead small lives, but not you. Let others argue over small things, but not you. Let others cry over small hurts, but not you. Let others leave their future in someone else's hands, but not you." - Jim Rohn







Thank you to Baja Bound Mexico Insurance Services for your long-term support of the BajaNomad.com Forums site.







Emergency Baja Contacts Include:

Desert Hawks; El Rosario-based ambulance transport; Emergency #: (616) 103-0262