Roland via EV wrote:
Did any of you monitor the voltage of the most negative cell and the
most positive cell during the charging cycle and discharge cycle
using a very high charging system?...
Did not have any BMS back in the 70's at the time. During the
discharging cycle which may be up to
2015, 22:37
Subject: Re: [EVDL] Supercharging is not the way.
No they don't. 30 to 35 miles on battery.
You would have to prove that, Of course the i-MiEV will go further if you drive
40 MPH.
I was speaking of normal driving.
From: Russ Sciville rustyb...@yahoo.co.uk
To: Paul Dove dov
On 13 May 2015 at 22:31, Lee Hart via EV wrote:
a certain percentage of the market will never be happy with EVs until
they are just like ICEs.
I hate to say it, and I'm vulnerable to citation needed, but I'd have to
estimate that percentage at around 90 percent. :-\
Especially here in the
On 13 May 2015 at 10:58, Ben Goren via EV wrote:
15 kWh / 15 minutes is 60 kilowatts...not quite the level of
insanity of a megawatt, but still in a range far beyond what you'd ever see in
a residential setting.
Not so far beyond at all. A typical US suburban tract home has a 200 amp,
240
On 05/14/2015 12:21 PM, Ben Goren via EV wrote:
Worse...I don't think I've ever seen anything bigger than a 220V / 50A
breaker in a residential panel -- though, granted, I'm certainly not
an electrician.
I have an 80A breaker in my panel for the 15Kw backup heat in our
air-source heat pump.
On May 14, 2015, at 9:36 AM, Peri Hartman via EV ev@lists.evdl.org wrote:
My guess: I think the demand for roadside charging will be fairly high as
(another guess) 30%-50% of the residences will not have access to domestic
charging - because they are in a multistory dwelling with few (or no)
On May 14, 2015, at 10:23 AM, Lee Hart via EV ev@lists.evdl.org wrote:
I'd guess that one nightmare scenario for the utilities is for everyone in
the ritzy neighborhood to arrive home with their Teslas, and plug them all
into their superchargers at the same time!
Indeed, that may well be a
I agree with Jamie. There are obviously a great range of situations, but I
would guess his is more typical.Where I live people seem to roughly fall
into two categories: those who like evs but can't afford one, and those who
can afford an ev but don't want one. The former can only afford one
EVDL Administrator via EV wrote:
A typical US suburban tract home has a 200 amp, 240 volt service...
Many modern mcmansions, which are often built by the dozens in high end
developments, now have 400 amp service. This would allow for a continous
power of almost 77kW.
Not quite. That's the
string of cells?
Roland
- Original Message -
From: Ben Goren via EVmailto:ev@lists.evdl.org
To: EVDL Administratormailto:evp...@drmm.net ; Electric Vehicle Discussion
Listmailto:ev@lists.evdl.org
Sent: Thursday, May 14, 2015 10:21 AM
Subject: Re: [EVDL] Supercharging
You can't just splice in extra nodes everywhere. The wiring and circuit
protection has to accommodate the potential increased concurrent load.
Realistically, this applies to the entire grid. You cannot suddenly power
a significant amount of our transportation with the existing grie. The
On May 14, 2015, at 10:47 AM, Ben Goren via EV ev@lists.evdl.org wrote:
dump pack
Thinking this through a bit more...I'm not sure that it would make sense for a
rapid-charging station to operate without a substantial dump pack of its own.
Without one, you're left needing a grid connection
@lists.evdl.org
To: EVDL Administrator evp...@drmm.net; Electric Vehicle Discussion
List ev@lists.evdl.org
Sent: 14-May-15 9:21:47 AM
Subject: Re: [EVDL] Supercharging is not the way.
Er...no. Indeed, I think you just proved my point.
60kW is over half again as much as you get at the meter
On May 14, 2015, at 6:35 AM, EVDL Administrator via EV ev@lists.evdl.org
wrote:
On 13 May 2015 at 10:58, Ben Goren via EV wrote:
15 kWh / 15 minutes is 60 kilowatts...not quite the level of
insanity of a megawatt, but still in a range far beyond what you'd ever see
in
a residential
To: Russ Sciville rustyb...@yahoo.co.uk
Sent: Thursday, 14 May 2015, 12:41
Subject: Re: [EVDL] Supercharging is not the way.
I think you all are mistaken. You are using gas. Maybe not much .3 of a
gallon like the guy said in the forum but then it doesn't take much gas to go
15 miles. Those
On 14 May 2015 at 9:21, Ben Goren via EV wrote:
How many people living in McMansions are going to be happy shutting
down basically everything, especially all the air conditioning and pool
equipment they paid so much extra to get the 400A service for in the
first place, every time they want to
Ben Goren via EV wrote:
Thinking this through a bit more...I'm not sure that it would make
sense for a rapid-charging station to operate without a substantial
dump pack of its own.
That is correct. I worked for a company that made high power chargers,
mainly for commercial/industrial users.
On 05/14/2015 11:21 AM, Ben Goren via EV wrote:
Worse...I don't think I've ever seen anything bigger than a 220V / 50A
breaker in a residential panel -- though, granted, I'm certainly not
an electrician. That's 11 kW. You're going to need half a dozen of those,
70-80 amp breakers are fairly
I would think they would run power beside or under the road and run inductively
Sent from my iPhone
On May 14, 2015, at 1:21 PM, Ben Goren via EV ev@lists.evdl.org wrote:
On May 14, 2015, at 10:47 AM, Ben Goren via EV ev@lists.evdl.org wrote:
dump pack
Thinking this through a bit
On 05/14/2015 11:21 AM, Ben Goren via EV wrote:
Worse...I don't think I've ever seen anything bigger than a 220V / 50A
breaker in a residential panel -- though, granted, I'm certainly not
an electrician. That's 11 kW. You're going to need half a dozen of those,
I have a 60A breaker so my
On 5/14/2015 11:21 AM, Ben Goren via EV wrote (in part):
No way is that station going to have a 20 MW feed from the
grid...that's about 5% - 20% of the output of a utility-scale
generating unit. And even the utilities themselves would have problems
running such a facility because of the
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
I have a low range S-10 pickup conversion with lead acid batteries.
(I limit it to 20 miles a charge with new batteries, and after a year
or two the usable range is closer to 15 miles.) It's also relatively
inefficient, especially for the stop and go
@lists.evdl.org; Electric Vehicle Discussion List ev@lists.evdl.org
Sent: Wednesday, May 13, 2015 11:05 AM
Subject: Re: [EVDL] Supercharging is not the way.
Volt/Ampera's regularly do more than 50 miles on their 10.4kWh battery packs
and that includes dragging round a backup four cylinder engine
It is actually 14.4 kWh from 110V/12A. Most people have 15A circuits and
shouldn't draw more than 12A.
When I first got my Tesla, I was charging on 110V and having some trouble
keeping up. My normal commute is 50 miles round trip, plus side trips. The
Tesla has about 250-300 wh per mile.
The assumption of what nearly everyone needs in a day is based on
averages, right?
Averages are built from data ranging from minimums to maximums. But real
range needs are based on maximums. So it would be erroneous to assume
that averages define the actual range needs of most people.
Good points about the importance of low weight and improved CD,
Lawrence. If the Tesla Model 3 can be more efficient than the Model S,
that would help get the price down from Model S levels while still
maintaining their desired range. Carrying fewer batteries would help
further with the
@lists.evdl.org; Electric Vehicle Discussion List ev@lists.evdl.org
Sent: Wednesday, May 13, 2015 2:16 PM
Subject: Re: [EVDL] Supercharging is not the way.
Yes, needs a gentle foot but often achieved. Checkout SpeakEV forum in the
Volt/Ampera section.I've achieved 48 miles which includes
Sent: Wednesday, May 13, 2015 4:00 PM
To: Jamie K; Electric Vehicle Discussion List
Subject: Re: [EVDL] Supercharging is not the way.
On May 13, 2015, at 12:44 PM, Jamie K via EV ev@lists.evdl.org wrote:
But real range needs are based on maximums.
I'd agree with that. And I hope I'm not coming
Charging associated with hotels seems like a good idea for road trips.
For day-to-day local use, do you primarily drive an EV where you use L1
charging at home or are you talking theoretically?
I'm coming from a perspective of practical experience with an electric
car as our main vehicle.
@lists.evdl.org; Electric Vehicle Discussion List ev@lists.evdl.org
Sent: Wednesday, May 13, 2015 11:05 AM
Subject: Re: [EVDL] Supercharging is not the way.
Volt/Ampera's regularly do more than 50 miles on their 10.4kWh battery packs
and that includes dragging round a backup four cylinder engine
On May 13, 2015, at 11:51 AM, Jamie K via EV ev@lists.evdl.org wrote:
Ben, on the subject of L1 chargers being good enough for nearly everybody and
L2 being overkill, I would ask based on what data?
Sorry...I had in mind overnight home charging, with the assumption that the 20
kWh you get
On May 13, 2015, at 12:44 PM, Jamie K via EV ev@lists.evdl.org wrote:
But real range needs are based on maximums.
I'd agree with that. And I hope I'm not coming across as suggesting that
in-home L1 charging is the only way that an EV would ever be charged.
My point is that most people don't
The normal verbiage used is average and you are correct (I think) in pointing
out that if a BEV is to be your only vehicle you might want to look at average
plus 2 standard deviations which would cover 95% of your travels and leave only
5% needing to use public transit or a rental vehicle. In
Subject: Re: [EVDL] Supercharging is not the way.
Are you sure about that number? That would be equivalent to the Leaf
regularly getting about 120 miles on a charge. Probably possible on a
flat road, no stops, at 40mph but not possible for regular driving.
Peri
-- Original Message
On May 13, 2015, at 1:44 PM, Jamie K via EV ev@lists.evdl.org wrote:
I'm coming from a perspective of practical experience with an electric car as
our main vehicle.
The big factor you left out is daily driving mileage. If you're putting 80
miles a day on the car, yes, L1 is probably
To: Paul Dove dov...@bellsouth.net; Electric Vehicle Discussion
List ev@lists.evdl.org; Electric Vehicle Discussion List
ev@lists.evdl.org
Sent: 13-May-15 9:05:34 AM
Subject: Re: [EVDL] Supercharging is not the way.
Volt/Ampera's regularly do more than 50 miles on their 10.4kWh battery
packs
The I-MiEV already is energy efficient. It travels 60 miles on a 16kw battery
and charges in 30 min on chase mo.
Sent from my iPhone
On May 13, 2015, at 10:37 AM, Lawrence Rhodes via EV ev@lists.evdl.org
wrote:
I've now heard all the talk about 5 minute quick charging batteries and the 1
, 16:59
Subject: Re: [EVDL] Supercharging is not the way.
The I-MiEV already is energy efficient. It travels 60 miles on a 16kw battery
and charges in 30 min on chase mo.
Sent from my iPhone
On May 13, 2015, at 10:37 AM, Lawrence Rhodes via EV ev@lists.evdl.org
wrote:
I've now heard all
The Leaf is not always 250 Wh/mile (4 mi/kWh). It can be under comfortable
weather and clean roads, but in deep cold, or slushy highways, with the
resistance heat on, even with smooth driving, it can exceed 350 Wh/mile
(2.9 mi/kWh). Aggressive high speed driving in rainy conditions with the
heat
All I can tell you is that from our experience, L2 is not rapid
charging, it's normal charging. Whereas when you have somewhere to go
soon, L1 is punishment charging.
There are places where L1 works well, for example at an airport where
the car is going to sit for days. And no doubt there
Small, light, efficient, yes. Bring 'em on!
We also live in a small town, but it's in the middle of a large metro
area. Not surprisingly, with that and other considerations our driving
needs are different. We couldn't make a go of it here with just L1 and
the LEAF. But with home 6.6kW L2
So I take it you aren't driving an electric car and using L1 at home to
do all or most of your driving?
For us it isn't hypothetical or theoretical. And for anyone, please be
clear that a typical day is not a relevant metric for range requirements.
It's the outliers that you have to
Ben Goren via EV wrote:
Most EV charging can and should reasonably be expected to be done
while the vehicle is parked, especially overnight at home. L1
chargers are today and always will be good enough for that for nearly
everybody... L2 is pretty much guaranteed overkill
This describes my
Jamie K via EV wrote:
All I can tell you is that from our experience, L2 is not rapid
charging, it's normal charging. Whereas when you have somewhere to go
soon, L1 is punishment charging.
This is the problem that Lawrence Rhodes pointed out. If you build EVs
just like big heavy power-hungry
Lawrence Rhodes via EV wrote:
I've now heard all the talk about 5 minute quick charging batteries
and the 1 megawatt per car requirement. It's time to stop the
madness. As much as I love Tesla all their models are big energy
pigs. 85KW! Yes much better than a gas car of any size but when
there
I've now heard all the talk about 5 minute quick charging batteries and the 1
megawatt per car requirement. It's time to stop the madness. As much as I
love Tesla all their models are big energy pigs. 85KW! Yes much better than a
gas car of any size but when there are vehicles that can go
On 05/13/2015 10:37 AM, Lawrence Rhodes via EV wrote:
I've now heard all the talk about 5 minute quick charging batteries and the 1
megawatt per car requirement. It's time to stop the madness. As much as I
love Tesla all their models are big energy pigs. 85KW! Yes much better than a
Tesla
On May 13, 2015, at 8:37 AM, Lawrence Rhodes via EV ev@lists.evdl.org wrote:
So I think the engineers need to put their thinking caps on, reduce the
weight of every vehicle, make the CD of all new vehicles .16 or so and stop
making these energy hogs.
That's definitely where a good deal of
: 13-May-15 9:23:37 PM
Subject: Re: [EVDL] Supercharging is not the way.
The iMev is not efficient. Stella goes 375 miles on the same 16kw
pack. 55wh per mile is much better than 250 which is what all the
steel evs get. Lawrence Rhodes
-- next part --
An HTML attachment
The iMev is not efficient. Stella goes 375 miles on the same 16kw pack. 55wh
per mile is much better than 250 which is what all the steel evs get. Lawrence
Rhodes
-- next part --
An HTML attachment was scrubbed...
URL:
: [EVDL] Supercharging is not the way.
The assumption of what nearly everyone needs in a day is based on averages,
right?
Averages are built from data ranging from minimums to maximums. But real range
needs are based on maximums. So it would be erroneous to assume that averages
define
51 matches
Mail list logo
