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Old 09-16-2020, 12:58 PM   #1461
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Thought I would pass along the list of rumored updates for Tesla Battery Day. Less than a week now!

Cathode
Novonix DPMG granules
Dry electrode from Maxwell - allows thicker cathode
Single crystal cathode (Dahn)
Cobalt free
Sila Transition metal free
SilLion nickel rich NMC

Anode
Novonix DPMG graphite granules
Dry electrode from Maxwell
SilLion high loading Silicon
Dahn's Anode free (not coated) and Lithium metal cathode
Silicon nanowires

Manufacture
Hibar
Cell to pack
4070 size (or bigger)
Tesla mining
Tabless electrode
Plate cooling
Transformation of core structural design of the vehicle (giga casting? heat sink? cell to chassis?)
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Old 09-22-2020, 04:03 PM   #1462
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Shareholder meeting first and then Battery Day Presentation.






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Old 09-22-2020, 04:36 PM   #1463
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Break now, then Battery presentation.
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Old 09-25-2020, 07:55 AM   #1464
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Well, Battery Day was amazing!.....very impressed with Tesla's new path they are on. I've been following battery chemistry and cell improvements for years now and this stuff blew my mind. If you didn't watch the presentation, here are the most important slides from it and if you did, it will be a nice place to come back and have a summary of the event.

/Click to enlarge pics/

Most important slide of the bunch:




With all the new improvements, they will be able to build a car for $25k in 3 years!! Amazing.










New cell format: 4680



New tabless cell structure:



Legacy way:



New Tesla way based on first principles:



New battery pack structure, no more modules:
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Old 09-30-2020, 10:45 AM   #1465
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According to the media firm’s anonymous sources, Tesla will be announcing the battery update as early as this coming Thursday.
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Old 10-02-2020, 10:36 AM   #1466
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Summary: Stratification plays an important role in ocean ventilation, ocean heat, carbon intake, water mass formation, tropical storm formation, ocean oxygen levels, biological depletion, and the AMOC.

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Seawater generally forms stratified layers with lighter waters near the surface and denser waters at greater depth. This stable configuration acts as a barrier to water mixing that impacts the efficiency of vertical exchanges of heat, carbon, oxygen and other constituents.
Quote:
We find that stratification globally has increased by a substantial 5.3% [5.0%, 5.8%] in recent decades (1960–2018) (the confidence interval is 5–95%); a rate of 0.90% per decade. Most of the increase (~71%) occurred in the upper 200 m of the ocean and resulted largely (>90%) from temperature changes, although salinity changes play an important role locally.
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Increasing stratification has important climate implications. The expected decrease in ocean ventilation could affect ocean heat and carbon uptake, water mass formation and tropical storm formation and strength3. The associated decrease in ocean mixing, moreover, is consistent with a decline in ocean oxygen concentration, reduced nutrient flux and alteration of marine productivity and biodiversity, as observed. Regions (for example in the North and tropical Pacific and South Atlantic) with the maximum increase in stratification correspond to regions of known de-oxygenation. This is expected, given that more than 80% of observed global ocean oxygen decline is associated with enhanced stratification and consequent weakening of deep-water ventilation and biological depletion associated with the inhibition of nutrient supply. It underscores the consistency between observed physical and geochemical climate change impacts.
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Old 10-02-2020, 01:19 PM   #1467
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Interconnection queues track new generation projects.

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Over the past two years, interconnection queue data from PJM and ERCOT have shown a drastic shift away from new gas and a steep rise in renewable energy projects.


Five years ago gas and renewables were tied in the queue and then gas started falling. Why? Pure economics of renewable energy getting cheaper by the year.

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Old 10-02-2020, 03:46 PM   #1468
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First time seeing this. Posting as it circles back to the reason why I created this thread on this board - the connection between Dave's lyrics/music and how we live/our future.

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Old 10-05-2020, 08:54 AM   #1469
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Pretty cool graph showing the top states in solar growth within the past 8 years. Where does your state fall?

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Old 10-06-2020, 09:00 AM   #1470
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Again, Chamath nails it. Beautiful.

Interview clip:

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"
@Tesla
is no longer about the car business. The value of this business is about deregulating energy. That's about batteries and battery storage and it's about disrupting utilities," says
@chamath
on $TSLA. "People continue to misunderstand and underestimate this business."
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Old 10-07-2020, 07:37 AM   #1471
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Another example of renewable energy's benefits. Trump (GOP) likes to talk about how switching over to clean energy will make prices go up for customers, but we know this not to be true.

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The part I bolded is the "peak shaving" time that is always the most expensive part of the bill and when you reduce that, it reduces the cost.


Quote:
“Green Mountain Power (GMP) announced today that its growing network of stored energy reduced about $3 million in costs for all GMP customers so far in 2020 by cutting power demand during energy peaks, especially during the hot, dry summer. This network includes home batteries, utility-scale Tesla Powerpack batteries at solar sites, and carbon-reducing devices like electric vehicle smart chargers. This builds on more than $2 million in savings over the last two years as GMP pioneered industry-leading battery programs in partnership with its customers.”
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Old 10-08-2020, 07:52 AM   #1472
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Another analyst is starting to get it:

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Old 10-12-2020, 07:10 PM   #1473
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Woot woot! Progress.

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Old 10-14-2020, 09:21 PM   #1474
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If you haven't seen this documentary yet, please do. We are losing our public land for profit. I knew some of this already, but learned a lot. Once society is mostly living off renewable energy this will not be a problem, but will it be too late? Will all the natural beauty be destroyed by then?

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Old 10-16-2020, 07:34 AM   #1475
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Old Yesterday, 11:43 AM   #1476
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New data. This is why Hydrogen doesn't make sense right now.

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