I thought the $230 was just the manufacturing cost, not including the capital 
costs.    For example, the 60KWH battery in the Bolt costs between $13000 and 
$13900 depending on the article.

The real problem with most of the batteries is that you have to know what 
percentage of charge is part of the equation.  For example, the Leaf original 
battery was probably something like 800 charges with 80% of the battery storage 
still there.  Tesla is advertising much longer life and supposedly has 95% of 
the battery life after 8 years and something like 2000 charges.  But the 
reality is we don’t know how many extra cells are in a Tesla battery pack to 
maintain that illusion.  If they added 5% more cells than the rated charge, 
maybe they just bring them into the folod to make it look like the battery 
isn’t getting older (I kind of suspected that and GM confirmed they are doing 
the same thing also with the Bolt).  The catch with all these numbers is how 
much of the battery gets charged to maximum life and how partial charges factor 
in.

With our Leaf, we always charged to 100% and lost 2 of the 12 cells within 
45,000 miles.  Tesla recommends only 80% charges since full charges seem to 
shorten battery life.  GM was keeping the Volt battery between 30% and 80% to 
maximum life.

From: Af [mailto:[email protected]] On Behalf Of Harold Bledsoe
Sent: Monday, June 5, 2017 7:43 AM
To: [email protected]
Subject: Re: [AFMUG] This Is the Biggest News in Electricity Since the 
LightBulb -- Seriously

I don't think this is the right comparison unit.  $230 is the capital, up-front 
cost per KWH for the car.  4.5 cents would be some kind of 20 year operational 
usage cost.  It still seems hard to make money at that price though.  How many 
cycles can you get from a Li car battery?

On Mon, Jun 5, 2017 at 2:11 AM Rory Conaway 
<[email protected]<mailto:[email protected]>> wrote:
Considering that battery costs right now are at $230 per KWH for electric cars, 
I’m kind of not buying that.

From: Af [mailto:[email protected]<mailto:[email protected]>] On Behalf 
Of Bill Prince
Sent: Sunday, June 4, 2017 11:08 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: [AFMUG] This Is the Biggest News in Electricity Since the 
LightBulb -- Seriously


The monumental breakthrough is the cost per KWH. They're saying 4.5 cents per 
KWH. That is a big deal.

bp

<part15sbs{at}gmail{dot}com>


On 6/4/2017 1:25 PM, Jeremy wrote:
Apparently 'solar-plus' is just the process of storing energy in large banks of 
batteries and then using it during peak hours when energy costs more.  I am not 
finding the monumental breakthrough here....

On Jun 4, 2017 10:11 AM, "Bill Prince" 
<[email protected]<mailto:[email protected]>> wrote:

I heard about these giant rubber bands...



bp

<part15sbs{at}gmail{dot}com>


On 6/3/2017 7:00 PM, Chuck McCown wrote:
It doesn’t say how they are storing the energy.

From: Jaime Solorza
Sent: Saturday, June 03, 2017 3:20 PM
To: Animal Farm
Subject: [AFMUG] This Is the Biggest News in Electricity Since the LightBulb -- 
Seriously

https://news.google.com/news/amp?caurl=https%3A%2F%2Fwww.fool.com%2Finvesting%2F2017%2F06%2F03%2Fthis-is-the-biggest-news-in-electricity-since-the.aspx#pt0-845273


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