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Old 11-09-2018, 08:36 PM   #101 (permalink)
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I already have the circuit installed for a 6.6kw charger.

Right now it only powers my welding machine and air compressor.

I'm making it work with my Panasonic made for nissan 12 amp 240v converted 2.8kw brick charger at home and the 3.8kw duosida charger for away charging.

So I lack sympathy for anyone who complains about 6.6kw charging.

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Last edited by oil pan 4; 11-09-2018 at 09:14 PM..
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Old 11-09-2018, 08:43 PM   #102 (permalink)
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Originally Posted by All Darc View Post
If cost was the only priority for EVs batteries, they would use lead acid batteris.
Weight and energy density are also important.
I'm speaking in terms of improving current EV battery technology. There isn't much need to get weight down lower than current lithium ion batteries. The main thing needing improvement then is cost.
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Old 11-09-2018, 09:12 PM   #103 (permalink)
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Ok, you were clear this time.

Indeed we need to confirm with Maria Helena Braga if the lower cost they speak about it's lower per cell unity, or lower per KWH.
Like I said, even if the price per each cell of a given size (like 18650 size cells) it's the same for conventional Li-ION cell, you would still have at least 3x (and up to 10x) less expensive cost per Kwh.

But I presume it's the cost per cell, since the materials are lower cost (no cobalt) and the manufacture process have no great mystery (no one I found) and can be made even from sodium.

But another doubt I have it's about energy density per weight and energy density per liter, how both measures of density compares from their new batteries, if we compare the lithium metal battery to the sodium metal battery versions they created.

Quote:
Originally Posted by redpoint5 View Post
I'm speaking in terms of improving current EV battery technology. There isn't much need to get weight down lower than current lithium ion batteries. The main thing needing improvement then is cost.

Last edited by All Darc; 11-09-2018 at 09:25 PM..
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Old 11-10-2018, 04:32 PM   #104 (permalink)
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Let the imagination run and then tell me. Please, I'm curious about what each one of you would imagine for such thing.
Floating cities in the sky.

But seriously, that inverted chopper looks lethal.

Wearables, like a backpack with household current would be nice.

How much can she store in a NATO 20-liter fuel can?
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Old 11-10-2018, 06:48 PM   #105 (permalink)
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But somethings will never change :





I always imagined why, in The Jetsons, they lived only in sky cities. In no episode they show Earth Surface. Was the Earth surface destroyed in some nuclear war?

Drones will be interesting for passanger, if they manage to create security systems of self drive (pilot) and if the routes don't got overload.

There are many passanger drones in projects. But most suffers from severe battery density limitation.
With the new batteries maybe they create drones able to fly for 5 hours instead of just 30 minutes.











Quote:
Originally Posted by freebeard View Post
Floating cities in the sky.

But seriously, that inverted chopper looks lethal.

Wearables, like a backpack with household current would be nice.

How much can she store in a NATO 20-liter fuel can?
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Old 11-11-2018, 10:55 AM   #106 (permalink)
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If they can make a 75 kwh plus 2011 to 2017 leaf battery for under $7,000 I would buy one.
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Old 11-11-2018, 11:23 AM   #107 (permalink)
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Accoding economists in this field, that's about the price it need to reach in order to make electric cars start to compete with combustion engine cars.

One question for you :

What is the average energy efficience of coal power plants on USA, up to the electric energy arrive on homes ?

I know that gasoline it's a lot more expansive in comparison to coal, in terms of move electric generators.

I konw some modern coal power plants are very efficient, but many older ones have quite lower efficience.

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If they can make a 75 kwh plus 2011 to 2017 leaf battery for under $7,000 I would buy one.

Last edited by All Darc; 11-11-2018 at 11:29 AM..
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Old 11-11-2018, 02:28 PM   #108 (permalink)
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Power generation where I live uses mostly coal, followed by natural gas, then wind.
The base rate is 7 cents per kwh, total consumption divided by the bill is usually around 9 to 10 cents per kwh.

The efficiency of a coal plant is usually up to 38%.
The average line loss in the united states as a whole is 10% or 11% as of 2012.

My leaf gets 3.5 to 4.7 miles per kwh. The lower limit being pulling my trailer during winter and the higher end is summer time with no trailer and mostly highway driving.
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Old 11-11-2018, 08:34 PM   #109 (permalink)
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Converting from dollars to real (brazilian coin) you pay 26.1 cents of real per kwh.
On Brazil the price varies a lot, from 33.7 cents to 59.9 cents of real. And remamber that most of our energy here it's from hydroelectric (cheaper to produce). The high price here it's mostly government's greed.

And our cars also are more expensive than on USA. We built and export cars to some countries that are less expensive there than the exact same ones sold on Brazil.
A similar thing happens to our gasoline, we produce and export some, and the exported gasoline sold in some countries are less expensive than the gasoline sold in our territory.

So, I conclude solar energy and electric cars could be even a better advantage on Brazil than on USA. Our importation tax are high, but there are some chinese solar panels manufactures here, and workmanship for panel roof instalation it's quite lower. If some taxes get reduced for solar panels, maybe it get better chance.

Electric cars would be simpler, in theory, to manufacture than gasoline engine cars. And the anual saving, comparing to the cost of gasoline per year on Brazil, would make it even better in economic terms.
These new batteries would bring a lot of possibilities. Remote locations here, where they can't sell extra power from sollar panels to the grid, to use credits to pay energy consumed at night, would use batteries to storage.

Quote:
Originally Posted by oil pan 4 View Post
Power generation where I live uses mostly coal, followed by natural gas, then wind.
The base rate is 7 cents per kwh, total consumption divided by the bill is usually around 9 to 10 cents per kwh.

The efficiency of a coal plant is usually up to 38%.
The average line loss in the united states as a whole is 10% or 11% as of 2012.

My leaf gets 3.5 to 4.7 miles per kwh. The lower limit being pulling my trailer during winter and the higher end is summer time with no trailer and mostly highway driving.

Last edited by All Darc; 11-11-2018 at 08:49 PM..
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Old 11-13-2018, 03:25 PM   #110 (permalink)
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I always imagined why, in The Jetsons, they lived only in sky cities. In no episode they show Earth Surface. Was the Earth surface destroyed in some nuclear war?
Okay, floating cities in the sky.... on Venus.

https://en.wikipedia.org/wiki/Cloud_Nine_tensegrity_sphere

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