Am I missing something? We all know of a couple notable L-ion related
issues such as the Samsung cell batteries and there were 3-4 Boeing 767
batteries that flamed out but these are relatively isolated incidents
compared to the hundreds of millions of L-ion batteries of that same
chemistry out there that are working fine.
I have had and have heard a number of reports on this list
of various levels of severity of thermal run-a-ways of LA batts, some
pretty nasty. There are all sorts of protection for worst case
scenarios integrated in cars, houses, woodstoves, water heaters, the
list goes on. Somehow we have managed to survive the fact that there
are some 300 million cars driving around with tanks of gasoline strapped
to our cars.
I suspect L-ion batteries in electric cars are here for
awhile. There have been very few fires in the hundreds of thousands of
electric cars on the road. Last I checked, the stats were better than
fires from cars with gas tanks. Of course the electric car battery has
to be light. Lithium iron would never work for mobile apps. As time
goes on, the industry will make L-ion batteries even safer.
Bill
Feather River Solar Electric
On 3/11/2017 1:06 PM, Ray wrote:
Simpliphi is another Li+ that is very much worth looking at too. It
comes in nominal voltages that are usable (unlike Tesla) such as 12 v,
24v, and 48 v. It is also rated to 10,000 cycles to 80% DOD, which
actually could outlast the rest of the system. It is Lithium Iron
phosphate which is heavier than the Tesla, but not prone to thermal
runaway. I haven't tried them yet, so I'm just in study mode. The
voltage stability as the battery discharges is very attractive. Even
at high discharge rates, it holds above nominal voltage to 90% DOD.
My problem is I have not been able to figure out how much we can under
size these relative to their lead acid counterparts. Being that they
have better capacity at high discharge rates, are less temperature
sensitive, can't freeze, and can be discharged 100%, I'm guessing we
can downsize them by about half, but I think it would really depend on
the application.
Anyone that is using Li+ (like Larry Crutcher) want to chime in on
sizing of Li+ battery banks compared to lead acid? Downsizing is the
only way we could possibly start making these affordable.
R. Ray Walters
Chief Technical Officer, RemoteSolar.com
BS Mech Engineering, 1988
Former NABCEP Certified, 2004-2016
Licensed Master ELectrician, Colorado
303 505-8760
On 3/11/17 9:51 AM, Chris Mason wrote:
Don't ignore Sonnen, their ECO16 is a solid Lithium based solution.
We installed one in Anguilla and, once we got through some software
issues, the system performed solidly.
On Fri, Mar 10, 2017 at 9:43 PM, jay <jay.pe...@gmail.com
<mailto:jay.pe...@gmail.com>> wrote:
HI All,
I hesitate to bring this up, but I’ve had some questions come my
way about the “new” Tesla 2.0
battery backup units. And with the demise of Aquion, looks like
Lithium and LA are pretty much the only games in town.
I have been able to find quite little on line ( surprise), pretty
much nothing from Tesla directly, but some from other folks by
google search.
Does anyone on the list here know anything solid?
For example.
what inverter is being used?
how do they stack?
battery chemistry?
actual size ( depending on which info it changes)
are they actually shipping?
Thanks
jay
peltz power
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