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PG&E gives $1000 to BMW owners, but no love for Tesla

ItsNotAboutTheMoney

Well-Known Member
Jul 12, 2012
11,787
9,951
Maine
Maybe they did i3 owners because ...

Utility: Hey i3 owner, can you please wait until 2am to charge?
i3 owner: sure, I only need a few hours to charge.

Utility: Hey Tesla owner can you please wait until 2am to charge?
Tesla owner: sorry, just got back from a road trip and I only have 40A charging. Er, want to pay the $3k and do the circuit upgrade?

And for the nth time, the "Holy Grail" is not V2G. Clue: the quote about V2G comes from someone at a university, and not someone at a car company or a utility. V2G is something to sell to naive politicians. Cheap batteries for cars also means cheap batteries for utilities, and PEVs' power draw will mean that their potential as a massive controllable demand sink will diminish the value of the additional complexity and uncertainty of V2G.

Besides, as the article says, car companies are looking to do someone with the end-of-automotive-life batteries. What could a utility do with a bunch of cheap, old batteries? They could _really_ simplify.

I'm with JB on this one. (As ever).
 

rabar10

Model 3 >> Focus Electric
Moderator
Dec 3, 2010
1,455
190
Indianapolis, IN
Maybe not V2G but it would be great to use EVs to soak up excess production during odd hours of the day...

Worded differently, that is exactly the same as:
their potential as a massive controllable demand sink

If the utility can control when connected EVs charge, they can better balance production and demand. Note 'control' doesn't even have to be explicit -- economic incentives for owners to do the same thing (i.e. time-of-use or TOU rates) work too. But adding explicit communication and control opens up a new level of ability, without the added complexity/cost of V2G.
 

ThosEM

Space Weatherman
Dec 13, 2013
870
324
Annapolis, MD
The "additional complexity and uncertainty" of V2G is the basis for Tesla Energy and wall mounted batteries. Why shouldn't I be able to use my huge car battery for this? If I could, maybe Tesla would get some love from PGE, or BGE, since I'm in Maryland. As near as I can tell, the problem is with free supercharging. I'd favor charging local rates at superchargers, for this if no other reason, but it also might help get other companies to build superchargers.
 

Robert.Boston

Model S VIN P01536
Moderator
The "additional complexity and uncertainty" of V2G is the basis for Tesla Energy and wall mounted batteries. Why shouldn't I be able to use my huge car battery for this? If I could, maybe Tesla would get some love from PGE, or BGE, since I'm in Maryland. As near as I can tell, the problem is with free supercharging. I'd favor charging local rates at superchargers, for this if no other reason, but it also might help get other companies to build superchargers.
Part of the issue, too, is the unlimited miles battery warranty. LiIon batteries wear out with cycling (and other factors), so using your car's battery in V2G reduces its lifetime in your car. Utilities aren't going to pay enough to make that range reduction worthwhile when used on a regular basis.

OTOH, I lose power a couple of times each year at my summer camp, and it sure would be nice to have the 85kWh in my car's battery available for those rare instances. Outages aren't frequent enough to justify buying a generator.
 

TexasEV

Well-Known Member
Jun 5, 2013
7,652
8,920
Austin, TX
Maybe they did i3 owners because ...

Utility: Hey i3 owner, can you please wait until 2am to charge?
i3 owner: sure, I only need a few hours to charge.

Utility: Hey Tesla owner can you please wait until 2am to charge?
Tesla owner: sorry, just got back from a road trip and I only have 40A charging. Er, want to pay the $3k and do the circuit upgrade?.
Starting charging at 11pm would benefit the utility as much as waiting until 2am. There are very few situations where a Tesla owner can't start charging at 11pm and have more than sufficient charge by the time he leaves home in the morning. Most people don't arrive home with a depleted battery most of the time.
 

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