[aprssig] FW: Tesla Field Day mode (or any EV/Hybrid)

[Robert Bruninga]

The only reason I posted on this list, is that EV’s make great emergency
field power systems. Many can provide emergency power for up to a week.
And can recharge from solar panels.  Its all in the new ARRL book:
http://aprs.org/Energy-Choices.html



> "Cheaper to buy, cheaper to maintain"?

> I thought you were talking about a Tesla.

>You can buy (and insure) a half dozen little 40mpg

> economy cars for the price of a Tesla.



More than half the 42 EV’s now on the market cost less (with incentives)
than the $35k average gas car.  See
http://aprs.org/Energy/EV/EV-costs-color-c.pdf



53% of the 42 EVs (including plugin hybrids) now have more than 350 mile
range for trips too:

http://aprs.org/Energy/EV/EV-ranges-color-b.pdf



It’s a whole new world of emergency power resources.  Worth looking at the
next time you get another car.

Bob, Wb4aPR



On Wed, Feb 27, 2019, 06:50 Robert Bruninga <bruninga at usna.edu> wrote:

True!   No one says an EV is best for every need.  The purpose of EV’s is
to provide an alternative for the 95% of US vehicle transportation that is
just wasting fossil fuels doing local daily miles that can be done better,
faster, cleaner and cheaper to buy, cheaper to operate and cheaper to
maintain.  For the other applications such as you describe (about 5% of the
average national transportation need), of course a fossil fuel wins hands
down.  Each individual need is unique and there are now all kinds of
options from massive diesel trucks, to simple EV commuter cars.  Each
person chooses what best meets his need.   Bob

*From:*  Stordahl AE5E via aprssig
*Subject:* Re: [aprssig] Tesla Field Day mode (or any EV/Hybrid)

"We have a much better situation around here"

We have truck stops with diesel fuel.  I drove my Ford Excursion Diesel
home, with a bunch of skiers once, from Bozeman Montana to Thief River
Falls Minnesota one winter night when it was 20 below zero.  Only had to
stop in Dickinson North Dakota (7 hours 500 miles) to fuel up and get some
grub.  Just another 400 miles to get home by daylight.  Nice and warm, with
heated seats! All our ski equipment, luggage and emergency supplies fit
nicely in the back. My Kenwood D710 was putting out APRS spots and worked a
little HF DX on my old Icom 706 with no ignition interference at all!

 If I had seen some Tesla's stalled with dead batteries I would have been
happy to rescue the occupants from freezing to death, assuming they could
lower their pride to ride in an internal combustion engine vehicle.  I bet
they would have jumped at the chance!

I am old and I can't recall a colder winter with more snow than this one.
Off my driveway I have snow piled up 15 feet.  I could sell lift tickets! I
would welcome global warming. Its not happening. Forecast tonight is for 35
below wind chills. An ice age seems more likely.

 Do they have snowplows for 4 wheel drive Tesla's? Or do you have to pay
double for two vehicles..one for showing off and a second for survival?

Today there is no wind at all, the blades are not turning, it is completely
overcast, with limited visibility, the solar panels are at zero volts.
Thankfully the lignite coal fired generators in North Dakota are churning
out electricity nicely so we will survive.

 I am doing my part by turning down the heat to 60 degrees at home so you
know I care!

 Ron, AE5E

On Tuesday, February 26, 2019, 10:41:26 AM CST, Andre <aprs at pe1rdw.demon.nl>
wrote:

We have a much better situation around here,

Public charging points (3x32 amp 240 v) are free to get installed for

any company or city if they can show proof of demand, the charge net

provider forks the bill because they will be the ones to get the profit.

charging cost is about 20 eurocent per kwh with the average EV using

about 10 kwh per 100 km it would be less then 2 euro per day without

charging at home.

Now comes the best part, with both smart charging and V2G enabled and

the charge network participating in grid balancing auctions, the EV

owner gets a cut back from the charging company and the employer does

not have to do anything for it except request the number of charging

points that are needed free of cost.

The employer would not gain anything here from doing it themselfs as we

do not have peak demand charges, they just pay for the max they can

draw, be it 3x80 amp 240v for a small dedicated line or a 3x32amp 10 kv

line and the amount actually used, the max capacity also counts for

delivering back, afterall the components do not care what way the

current flows.

 73 de Andre PE1RDW



On 2/25/19 6:10 PM, Robert Bruninga wrote:

> V2G charging and grid management:

> I think this Vehicle-to-Grid (V2G) concept will never take off, simply

> because it cannot work unless the cars are plugged-in all day.  This WILL

> work if workplaces do employee charging the right way, that is, with rows

> and rows of parking spaces with simple 120v outlets.  During an 8 hour

> work day, the average EV can gain up to 30 miles of daily range to

> replenish their incoming commute while costing about 50 cents a day.

>

> But since so few "employers" have any EV experience, they opt for very

> expensive $5000 Level 2 chargers instead of a $15 outlet from Home Depot.

> As a result, these big expensive chargers have to be shared throughout the

> day, require expensive internet and credit card connectivity and

> management and each person that plugs in only for an hour or so has to

> move their car every hour or so and does not want any of his electricity

> to go back to the grid, he wants the charge!

>

> But with every car plugged into a 120v outlet (the right way), the

> employer can use that fixed daily load to balance his dynamic load and

> thereby actually reduce his peak-demand charges.  And the financial

> benefit of demand-response loading can likely exceed the 50 cents a day to

> charge an EV and so most likely allow the employer to provide the charging

> for FREE.

>

> It's a win-win.  Every EV gets a pretty good commuter charge per day for

> low cost or free, the employer saves electric bill money by managing peak

> demand, and the grid wins by reducing dynamic demand..  And all of this is

> accomplished without ever having to use V2G and all its inherent social

> negativity.

> Its an exciting new world of energy.  If people will just wake up to the

> potential...

>

> Bob, WB4APR
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