Tesla release Powerwall 2.0 inbuilt inverter

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station240

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Oct 9, 2016
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Powerwall 2 has 14kWh storage, 7kW output and comes in white metal box.

Also new Powerpack 2 has 210kWh, 50kW output

Both have double power density as a result of better cells, something larger than 18650s
 

station240

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Oct 9, 2016
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177
Uses new 2170 cells which are 21mm diameter, 70mm high.
Compared to 18650 cells which are 18mm diameter and 65mm high.
That and redesigning the cooling/layout is how it fits double the capacity in the same size (actually unit is larger to fit inverter).

Pricing is better, if you look at total system cost.
AU$8K for the battery/inverter, installation starts at AU$1450, so under $10K installed.
Compared to Powerwall 1.0 which is $14K installed with 5kW worth of solar panels.
Does work out cheaper as it's not going to cost $4,000 to buy panels.


Downsides:
a) No cheap option, if you wanted to start with ~6kWh and 3,000W inverter, that is not on the table.
b) No 3rd party inverters, so if you don't like Tesla's feature set, tough.
c) No incentive for other companies to make alternative 'HV' batteries/inverters.
d) Another all in one box, so if the inverter fails, you have to lug the entire unit off the wall.

I suspect the 7kW inverter is liquid cooled along with the battery, but there is almost no technical information on this unit.
Weight is curious, up from 95KG to 110KG, a 7kW inverter that isn't 25KG on it's own makes me suspect liquid cooling.
 
Joined
Oct 8, 2016
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I am more interested in the solar shingles, they look sharp. I am curious as to how much they will actually cost to buy without being tied up in some complicated lease.


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hbpowerwall

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Oct 7, 2016
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The guys a marketing hero.. much to learn from him in the future I think.
 
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