Yeah, but why would they be using that kind of batteries? It seems to me that something like the salt water batteries, or even some variant of lead acid would be a lot more practical for this kind of thing... assuming they're using batteries at all.
On Mon, Jun 5, 2017 at 10:34 AM, Rory Conaway <[email protected]> wrote: > 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]> > 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]] *On Behalf Of *Bill Prince > *Sent:* Sunday, June 4, 2017 11:08 PM > *To:* [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]> 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 > > > > > >
