Notably, the most popular Solar inverter (which I have installed several
times at homes in the neighborhood) is the 2.5 kW SMA Sunnyboy.
Reason it is so popular is not only because it is an efficient
(transformerless) grid-tie inverter, but also because it has a switch
and a NEMA 5-15 (standard wall outlet) plug. If during a power outage
the inverter can't deliver power back to the grid, then throw the switch
and plug devices like fridge and cellphone charger directly into the
solar inverter, which then is operating as stand-alone 110V 15A
inverter. There is no battery backup of course, so you only get power
while the sun is beating down on the panels, but this allows you to
"survive" a power outage and it is apparently appreciated by the new
Personally, I have bought a cheap 110V 3kW inverter ("batteries needed")
at the DC voltage of my EV pack, so that I can connect the inverter to
this huge energy source and have power for whatever I like to power up
in my home. Or I can drive to whereever the power is needed and use it

I also noticed early Silverado hybrid trucks being promoted as "having
110V AC power outlets for your convenience and work needs". In the bed
of the truck was an outlet to plug into (probably for tailgate parties).

Cor van de Water
Chief Scientist
Proxim Wireless Corporation
Email: Private:
Skype: cor_van_de_water Tel: +1 408 383 7626

-----Original Message-----
From: EV [] On Behalf Of brucedp5 via EV
Sent: Saturday, July 26, 2014 4:14 AM
Subject: [EVDL] Designing in additional incentives to increase

I've posted about the U.S. Government's push for V2G, and we all know of
CARB regulations making it painful for Automakers if they do not make an
effort to get credits so they can sell their profitable ice. But there
likely items plugin-makers could design-in to increase plugin sales.

Today' plugin buyer's current incentive is saving money at the pump. The
original, 'saving the planet' impetus is now less important to today's
plugin buyer. They are more concerned about their view while standing in
their wallet. It isn't until later 'after' their plugin purchase that
begin to understand what 'we' already know: all the many other benefits
driving Electric. 

While I hope my current health issues don't make me miss the annual
Valley EVent at De Anza College on Sept. 20 10a-4p
I been thinking a lot about what the public talks about each time I have
gone. That got me thinking of what other incentives plugins could have
built-in to their designs to give even more sway/weight to help with

Recently, the U.S. east coast dodged a bullet, as the hurricane was not
bad as in previous years
Hurricane Arthur races off East Coast, dumping rain but doing little

So, I began to think, if the power is out at your home, what are the
important items to keep powered if a level-1 power source was made
(like if the home owner had a small genset)? 

I would think it would be the refrigerator, a cell phone charger, and
another low power device (TV/radio, tablet/netbook/laptop, etc.). A
20A source should easily handle that.

Given that the chance of being without power is far less likely
the year, the purchase of a small genset and the fire hazard of keeping
can of fuel around may discourage some home owners from getting one.

But, what if that plugin (EV or plug-in-hybrid) came with a built-in
(L1) outlet powered by an inverter drawing from the vehicle's pack?

-The home owner on a skinny/frugal budget would just run an extension
to the refrigerator to keep it powered up.

-At an additional cost, there may also be a way to have a 'local V2G/UPS
system' that would kick-in if there were a power outage.

As in: the house would be wired so that a specific 120VAC 20A outlet
powered the refrigerator, and the other devices are plugged into it,
would automaticall switch to use the power from the plugin's pack if
was an power outage. I am not saying that local V2G would supply power
the outside grid. Just a small setup to keep a couple critical/important
electrical items powered.

Hospitals, Hi-tech and other companies usually have a small UPS that
long enough for an outside genset to kick in, else allow their computers
shutdown cleanly before all the UPS power is spent. So, having a plugin
offering a L1 outlet would be like having a UPS power source.

This would be a good point in favor of purchasing a plugin as it could
be a power source for:
-home emergencies (like a power outage)
-out in remote areas where there is no power (picnics, camping, etc.)
- +more uses

In the case of a pih, the plugin-maker could design an idle mode that
charge the pack while it is being used as the forementioned L1 power
In a pinch, a pih could recharge an EV enough to get it to a public

While the typical pih 20 to 40 mile e-range may have a smaller pack
when compared to a ~70-90mi EV, the power of several pih could be
tapped/ganged/combined for a greater shared kW capacity (multiple pih in

The plugin buyer could justify the plugin purchase price because now
they do
not need to buy and maintain a genset and or deal with its chemical fuel
hazard (or old gasoline going stale & gummy).

This idea is not likely new, as many plugin owners have bought an off
shelf inverter to use off their 12V battery. But that is much more
inefficient than powering the inverter directly off the high voltage
pack. I
am saying there is a business opportunity to provide plugin-makers with
off the shelf inverter product that could be integrated into the
design, and or offered as an add-on option on later plugin models or

Note: I had this idea before Google's Inverter Challenge newswires came
Google's $1 Million Power Inverter Challenge Could Revolutionise The Way
Use Your Electric Car
July 24, 2014
Google launches $1m power inverter challenge
24 July 2014

Views, comments, corrections welcome :-)

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