Electric vehicles are evolving from mere transportation tools into dynamic energy assets capable of feeding power back into the grid through vehicle-to-grid (V2G) technology. While the hardware is now widely available—major automakers like GM, Ford, Tesla, and Rivian are shipping bidirectional EVs—full adoption depends on overcoming economic, regulatory, and consumer trust barriers. Current monetization is primarily tied to home backup (V2H), where value is clear and accessible, while grid-level revenue remains limited and underdeveloped. Technical challenges, such as battery degradation and warranty issues, have been largely mitigated by emerging standards and OEM commitments, including Nissan’s public warranty endorsement. The biggest hurdle remains the lack of a bankable revenue stream for V2G, which could be solved through innovative financing models—like leasing or pay-as-you-go programs—that mirror the solar lease revolution. As policy frameworks evolve and utilities establish compensation programs, especially in key markets like California and Texas, V2G is poised to grow from a pilot to a scalable, cost-effective grid resource. The convergence of technology, economic incentives, and supportive regulations suggests that V2G will become a foundational element of the energy transition, transforming parked EVs into a reliable, distributed energy asset.
LATITUDE MEDIA COVERING THE NEW FRONTIERS OF THE ENERGY TRANSITION
I'm Shail Khan. I invest in early-stage companies at Energy Impact Partners.
Welcome to Catalyst.
So, I drive a Kia EV9.
Most days, it sits in my garage with a 100-kilowatt-hour battery inside, doing nothing.
That's about seven powerwalls worth of storage from an energy capacity perspective.
And it's sitting parked and idle.
And I'm not unusual. An electric car, in general, spends 90-95% of its life doing exactly that.
V to G, feeding that power back into the grid at times, has been the obvious answer to that waste for 30 years or something like that.
And for 30 years, it's stayed mostly pilots.
The standard explanation was always pretty similar.
The cars sometimes technically couldn't send power back.
The hardware just wasn't there.
But that excuse, at least, is running out quickly.
Almost every major. Every major automaker is now shipping or has announced bidirectional models.
Every Cybertruck on the road can already export north of 11 kilowatts.
Mine can do it, too.
GM says it alone has more than 250,000 bidirectional-capable EVs on our roads.
At about 10 kilowatts each, that's 2,500 megawatts of nameplate capacity.
And that's one automaker.
Which means we're about to run the real experiment.
If the hardware is here, and that capacity still doesn't show up on the grid,
then the hardware wasn't really the thing standing in the way.
What's left is arguably harder.
There is a question of warranties.
Do they treat grid exports as off-limits?
Is it ambiguous? Is it clear?
There are degradation fears that people have had about batteries that have to be overcome.
The protocols maybe don't talk to each other.
And the economics, I think, most importantly, have to close for the person who owns the car.
GM, for example, their bidirectional charging bundle runs about $7,000 before installation.
And grid protocols. Grid programs so far have paid drivers a lot less than that.
It just doesn't pencil.
It may be different for vehicle-to-home, V to H, where you're using it for backup power,
but not so much for feeding it back into the grid.
But again, that may be changing.
My guest today is Steve Letender,
who is the senior advisor at the Vehicle Grid Integration Council
and the founder and editor of the newsletter V2Gnews.com.
We get into why this resource that's been sitting here growing for 30 years
might finally actually be arriving.
And delivering value.
And what still has to break its way for that to happen.
That's coming up next.
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Steve, welcome.
Thank you. Great to be here.
All right, so we're going to talk V to G.
I want to start from the technical perspective.
What's actually required for a vehicle to discharge its battery into the grid?
Yeah, there's three key components.
The first is a bidirectional electric vehicle.
It has to have the ability to draw power from the battery
and send it to buildings or to the grid.
The second piece is you have to have a bidirectional charger
that can both send power to the vehicle
and can also receive power and send it through the charger
back to buildings or to the grid.
And the third piece is you need some sort of software platform
that manages and optimizes that power flow
in response to constraints that are established by the customer,
the owner of the EV,
to ensure that the vehicle is first and foremost
providing the mobility services
that the vehicle is purchased for from the consumer.
So those three pieces.
And we can take it another level,
particularly around where the conversion of the power from DC.
We know we take DC power from a battery
and we convert it to AC power for use in buildings.
In buildings, in the grid,
and there's two different flavors of architecture out there.
And I'm happy to talk about that
if you think that would be of interest.
Yeah, let's do that.
Talk about how you can configure it.
And then we'll talk about sort of like where we are today
in terms of those,
do we have those three things out in the wild and where?
Yeah, absolutely.
So there's what we call a DC and an AC architecture.
And that really defines where the conversion
in a device called an inverter,
which is a grid interactive inverter.
It takes the DC power,
and converts it to AC power,
as I mentioned before.
For the DC architecture,
that conversion happens off-board the vehicle.
It's either in the charger
or a wall box that's adjacent to the charger.
So it's off-board.
So it's drawing DC power from the EV,
converting it to AC power off-board
and sending it to the building or to the grid.
And then the other flavor is V2G AC.
And this is where their onboard conversion occurs.
So the vehicle,
sends AC power from the vehicle
to an AC bi-directional charger.
And so just to give you a sense of where we are commercially,
the Tesla Cybertruck V2G product is an AC architecture.
So there's an onboard inverter capabilities
and the Ford F-150 and the GM suite of EVs
that have V2H and increasingly V2G are based on that off-board.
V2G DC architecture.
Which partially explains,
I think we'll talk about this more later,
but it's much more expensive as I understand it.
You already have a Cybertruck
or if you already have an F-150 Lightning
and you want to do V2G,
it's going to be more expensive for you to do so
on the F-150 Lightning
because of what you need to purchase
in addition to the vehicle
than it is on the Cybertruck.
Yeah.
You know, I should note that
there's been quite a debate in the industry,
AC versus DC,
in terms of, you know,
what are the advantages and disadvantages.
And there is a pretty clear advantage
to the AC architecture around costs that you mentioned.
So for the DC architecture,
the charging station has to be a DC charger
or it has to have, you know,
that capability to convert off-board from DC to AC.
And so that device, again, it's kind of early days,
they're kind of limited production,
but that device,
it's quite expensive.
And so the promise, as you noted,
is with the V2G AC,
the onboard conversion,
you have a lower cost AC bidirectional charger,
but there are costs that are then put onto the vehicle
to have that grid-interactive inverter
onboard the vehicle,
whereas the V2G DC architecture,
you don't have that additional cost
of that grid-interactive inverter on the vehicle.
That cost is off the vehicle
and the charger or the wall box.
And in the medium and heavy duty space,
one of the big markets for V2G is in the school bus space.
And the V2G DC is the predominant architecture there.
We don't anticipate significant cost advantages
from moving that larger platform to an AC architecture.
So I think the jury suggests that for residential
light duty vehicles that the V2G AC will offer
likely a lower cost option for consumers.
And so given that, like,
why hasn't GM or Ford,
why haven't they gone AC native?
Is it that they're not like,
they're not yet fully V2G native, you know?
And it's sort of like,
we want it to be an add-on,
not endemic to the vehicle,
or is it something else?
Well, you know, that's a great question.
I don't know that I have, you know,
super great visibility
into their internal decision-making processes,
but one of the clear issues is around standards.
The V2G AC, ULC,
standards literally just like a month ago were approved,
the UL 1741 SC,
which is the safety standard for V2G AC systems.
And so this is to comply with IEEE 1511.8,
1511, 1511.8-2018,
which is, you know,
the governance for interconnecting of DERs
to the grid system.
So to date today,
there wasn't really a approved,
standard for V2G AC and now that's just very recently changed. There is another
pathway for getting interconnection approval for V2G AC systems, which Tesla has pursued in some
jurisdictions, and we can get into that as well. So I think one of the issues were the standards
weren't yet developed, and there perhaps was a simpler, more direct pathway for them to kind of
do this with the DC architecture initially. But we are seeing companies, including I think Rivian
has announced that they've got their R2 coming to market, which will be a V2G AC architecture
with an onboard inverter. And there are other auto manufacturers as well that I think are
seriously considering pivoting to that AC architecture. So that's a good segue. We've
alluded to some of this. We talked about the Cybertruck, we talked about the F-150, we talked
about GM generally, and then you just mentioned Rivian. But orient me, if I want, if I'm trying
to buy a passenger car, I'm going to buy a V2G AC. I'm going to buy a V2G AC. I'm going to
do a passenger vehicle and I want to do V2G today. What are my suite of options and what does it
look like for me to actually enable V2G on those options? Yeah. You know, Shale, the way to really
think about it is a V2G system, which would include both the EV and the charger. And then
if the OEM is enabling full V2G capabilities, that will be part of kind of the software,
the app that comes with your purchase. So today, when you think about what are the compatible EVs
and bi-directional chargers on the market, you know, it's a fairly limited number of options.
So when I, before I joined Vehicle Grid Integration Council as a senior advisor,
I was working for a company called Fermata Energy, and we deployed dozens of bi-directional
charging projects across the country using a Nissan LEAF, which was bi-directional when it
was first introduced in 2015. And we had built our own bi-directional DC charger based on the
CHAdeMO platform. And so we were deploying those systems across the country. Of course,
the CHAdeMO standard has now gone out of favor in the United States. And so the new offerings
are based either on CCS or the NAC, the North American Charging Standard. And so the Tesla
system with the Cybertruck is commercially available today with that full suite of the truck
and their charging system. And then we've got kind of the OEM,
kind of packaged offerings, which is the Ford F-150 Lightning and their Ford Station Pro with
the Sunrun box that does the conversion. Similarly, General Motors has a OEM branded charger
that's bi-directional capable, can do full V to G, and that's compatible with, I think,
most of their electric vehicle offerings on the market today.
And then aside from those kind of OEM linked pairings, there are also emerging partnership
between charger manufacturers and EV manufacturers. And one example of that would be
Kia has partnered with Wallbox, which is a Spanish charger manufacturer. And so the Kia EV9
is compatible with the Wallbox charging system to do a full V to G capability.
And then there's another company that we work with called Decibel, and they have a home energy
station, which includes a bi-directional charger. And they have partnered with Volvo and Polar
to have their systems be compatible with their EV. And so we expect that kind of
pairing between different manufacturers, the EVs and charging stations to increase.
Similarly, we'll see more OEMs have that kind of matched paired charging between the vehicle and
the charger itself. So those are some examples of existing products on the market. And then,
and again, in the school bus space, most all of the electric school buses that are coming off the
bus are bi-directional capable. And there are now several higher power DC bi-directional chargers
that are compatible with those school buses. So again, when you think about V to G, you want to
think about light duty versus medium heavy duty and what's happening in those two different segments.
Right. So it seems like at the high level, I guess, focusing on the passenger segment,
you know, somewhat limited number of options today, but a bunch of options that are emerging
or available either directly through the OEM or through these partnerships.
As usual, Tesla doing it all in-house and then a bunch of others sort of doing it through
partnerships and so on. Let's talk about the economics though. Like, does it make sense to do
it? So walk me through the cost, I guess, first. And I know this, as we said before, this differs
whether you're, you have a cyber truck or whether you have a something else, but what is the, what
is the upfront, what's the CapEx of making yourself V to G capable? And then as it stands today,
what does monetization look like? Yeah, no, that's, that's,
it's a, it's a great question. It's the billion dollar question. And, you know, we are again,
early days, limited production. We're not manufacturing these chargers at scale. And so,
you know, today, like a V to G DC system is going to be quite expensive around, you know,
8 to 10 K for the full installation. I don't have good numbers on the V to G AC. The belief is that
it's going to significantly shrink the cost differential between a unidirectional and a
bidirectional charging system. So, you know, it's hard to say exactly what that differential is
today. I would guess somewhere in, you know, the high hundreds to thousands or something,
it's 1,000 to something in that range. So it is really, it's difficult to really pinpoint what
that incremental cost is for bidirectional, given kind of the, you know, the cost of, you know,
the early stage of the industry and the limited deployments that we've seen nationally. But one
thing I think it's important to talk about is, is you talked about what's, what's the, what's the
value of having that bidirectional capability. And so the only reason you would invest in a
bidirectional charging system, if there is some sort of value or opportunity to earn revenue from
having that capability. And in that case, there are very limited opportunities across the country to
actually monetize that bidirectional capability in terms of providing grid services. If you simply
want to back up your home during an emergency, like that's a value that exists today. And, you
know, the alternative is buying like a whole home Generac generator for your home, instead of
spending that amount of money, whatever that would cost, you would invest in your home bidirectional
charging system that would provide whole home backup power. And my sense is that that's going
to do a whole home backup generator. And so, so it's, it's a huge, important question about,
you know, does the value cover the incremental cost of going bidirectional? I think for simply
home backup power, the answer is likely, yes, it does. In terms of doing full B2G,
providing grid services, the question is, you know, where do utilities provide compensation?
What is the interconnection cost to participate in those programs?
And we have seen in some jurisdictions where utilities are compensating resources for
providing peak shaving in the 200 to 300 KW per season range, you know, for a 10 KW bidirectional
charging system, you could potentially earn, you know, $3,000 per year by providing that grid
service in a demand response or some other type of grid services program, BPP programs that are
emerging out there. And so, you know, I think that's a huge, huge, huge, huge, huge, huge,
I mean, that's pretty compelling. If you can get, if you can get that much and you have a 10
kilowatt system, then, you know, then even at today's costs, which are pretty high outside of
Tesla, you pay back in a few years. And I can imagine a lot of people doing that. So I, cause
until that last bit, my takeaway from what you said was sort of like bullish V2H and bearish V2G,
you know, like if you're using it for backup V2H, that being V2H, then, then it makes a lot of sense
because you can compare it against a whole home generator or maybe like a, you know, three power
walls or whatever. And then it's kind of compelling, but if you're trying to do V2G, the monetization
opportunities aren't really there, but it sounds like you're saying when, when the monetization
opportunities arrive, when these utility programs arrive, or if people are doing aggregated
distributed capacity or whatever, then there's enough juice in the revenue that you might pay
back pretty quickly. Is that what I'm hearing? Yeah. And, you know, I think you can think about
like stacking the value of, you know, the home backup power value and stack that with, you know,
the incremental value that you receive from, from providing grid services to the utility.
And so what we've seen is both the Ford system and the GM system was originally marketed and sold
for V2H. And then through a software upgrade, they were able to unlock the full V2G capability
for those customers located in those utility service territories where there was a monetization
opportunity. You know, we see have opportunity in, in, in California and some utility programs,
some pilot programs, Massachusetts, New York, we're seeing a emerging opportunity in Maryland,
Colorado, Connecticut. So, you know, I do think, you know, as you unlock that capability,
that there will be increasing opportunities for consumers to add to the value of their
bi-directional charging system beyond the simple home emergency backup functionality.
Thank you for joining us. We'll see you next time.
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I want to get through some of the, like, the reasons that people have been skeptical of V2G
in the past, right? I think that the main ones, apart from the economics, is there enough value
there, have largely been, will it degrade my battery? Is it going to break my warranty? Sort of
logistical, I guess, considerations like that. How do you think about that set of things? What
have we learned about that over time? Yeah, no, that's the first question I get whenever I'm at
a conference, you know, well, what about the battery and the warranties? And that's a real
important consideration, very important. And, you know, I got to say there's, it's quite a bit of
gray area. Again, referencing the company I used to work at, Fermata Energy, we actually worked
very closely with Nissan, and Nissan actually, you know, they've been doing a lot of work on
publicly stated in their warranty, that use of the Fermata Energy charger and bi-directional
charging platform would not impact the warranty on their product. So that was kind of the first,
I think, in the nation, in the world, where an OEM said, yes, we're going to approve the use of
this vehicle for bi-directional charging. There hasn't been much beyond that other than Ford,
Ford, Ford, Ford, Ford, Ford, Ford, Ford, Ford, Ford. So there is, you know, a lot of work to be done
there and clarity among the OEMs to give consumers the confidence that if they use this capability,
that it wouldn't void the warranty. And I've got to believe that given that they're bringing this
capability, integrating into electric vehicles and marketing as such, that that will have to
explicitly come up with some parameters around what types of bi-directional charging uses
would be acceptable under the existing warranty. And I'm quite confident that, you know, we'll see
some of that in the coming years. And there's been, I'm sure as many of your listeners may know,
there's been a rash of reports lately that's suggesting that ED batteries are lasting,
you know, much longer than originally anticipated. And the other thing to note is that when you think
of using an ED battery for traction in a vehicle, you know, you've got 150, 125 kW, whereas if you're
using it for grid services, you know, you're, you're using maybe 10 kW through the bi-directional
charger. So the, the rate of discharge and the impact on the, the battery is, is less when you're
discharging at a lower rate relative to what you're actually doing when you're driving the vehicle,
accelerating into traffic and whatnot. What do you think in terms of the
other thing that I think people have asked about historically is, okay, if I'm going to use my
vehicle as backup for my home, I'm using it in the scenario wherein the grid is down. If the grid is
down, I can't charge my vehicle either. And so I'm concerned about, you know, deploying all of my
range, deploying all of my battery. My presumption is that, you know, in these programs in the, in
the software there, you know, you can sort of set parameters. Say I don't want my battery to go below
whatever percent or something like that. And I think that's a good thing. How are you seeing the interaction between those types of settings that people are setting up and
then the relative to the value that that battery actually has, whether in a utility market program
or just as whole home backup? Yeah. Yeah. There, there, that's a great question. There isn't a lot
of good data out there in terms of what consumers are placing in terms of limits on, on how the EV
can be used for these programs. But I do think that there's a lot of good data out there in terms of
how the EV can be used for these programs. But I do think, you know, first and foremost, the EV, as I
mentioned at the beginning, is, is, is purchased for mobility, for transportation purposes. And so
when it makes sense, when the vehicle is available and it doesn't restrict mobility, then that, that
vehicle could provide home backup power and could provide grid services as appropriate. And so, you
know, there's a lot of good data out there in terms of the mobility capabilities of the vehicle that it was purchased for. But when you think about, I mean, my EV sits in my garage. I work from home, you know, it sits in my garage for, you know, days at a time without ever being used. And I think there's other folks, you know, that it wouldn't make sense, but where they're doing long commutes every day. I often talk about, you know, V2G as part of the sharing economy. Not everyone chooses to use a personal vehicle to drive people from the airport to the hotel every day.
On the weekends, you know, for, through Uber. But there's enough people that are willing to do that with their lifestyle, their opportunity costs are such that it makes economic sense for them to do that. And again, not everyone is going to participate in V2G programs, but if even a, a fraction of the EV owners who have the interest and the opportunity costs, which makes sense for them, then that could represent a, a significant resource for the grid. And really, you know,
as I'm sure, again, your listeners know, the grid is facing multiple challenges around load growth, affordability, and EVs, I think, can be a real important part of that affordability equation by using the grid more efficiently and managing how we charge vehicles, and then also using the discharge capability to make even better use of our existing infrastructure.
So I, I moved to Newhouse, what, eight months ago?
Something like that. And I'm in Northern California, in the Bay Area. And so I'm freshly going through the rooftop solar and storage process, purchasing process. And one of the nice things now in that market, because it's more mature, is if you're in a place where you could participate in a VPP program, it's sort of like a streamlined part of the sales process. I want to get solar and storage, and I can elect to participate, or it depends on how the offering is made. But like, as part of my initial purchase decision, I say, yes, I want to
be part of this program. Do we have that yet anywhere in V2G land? Like, is Tesla selling Cybertrucks in Texas and saying, if you sign up for this program, we'll aggregate you and, you know, loop it into our retail? We'll be at, we're at Jen Taylor in Texas, so we'll loop it into our retail book or something like that? Or is it too early?
No, that is my understanding that, that Tesla, you know, does have kind of an in-app process to participate in these programs.
They're started in Texas, they're working with Pacific Gas and Electric in California to participate in their V2X pilot program. And so I believe it is kind of a streamlined in-app process where you sign up for participation in these programs. And, you know, I have talked to folks in the OEMs, and they do envision, you know, a future where that all happens, you know, at point of sale, where you're at the dealership, you're making your decision, and the dealer rep is not
knowledgeable about what programs are available, and you would automatically kind of be enrolled in those programs with your permission. Are we there yet today? Definitely not. But it does seem like that would be, you know, the preferred approach to having that kind of point of sale decision where the consumer can easily enroll in a utility program.
So how do you see this going over the next few years? Is this like, I could see a couple of paths. I mean, one being this never really takes off, but I kind of think it's going to. But I could either see it
being there's some inflection point, all of a sudden,
over the course of a couple of years, like every
new EV that's introduced on the market is bidirectional capable at a minimum. And then
the programs start to emerge and, you know, people sign up in mass and this actually becomes like a
significant asset on the scale of what we're deploying for residential batteries, stationary
batteries very quickly. Or I could see this being one of these things where like, it just, it's so
idiosyncratic at the individual OEM level. And, you know, it takes a long time for people to figure
out how to actually sell it to customers. And then meanwhile, the monetization isn't really
there in most places. And so it ends up being predominantly a home backup thing, but it's not
sold when people want home backup. And so it kind of like grows incrementally, but it doesn't become
commonplace. You're obviously a bull on the space, but like, how do you see it going?
Yeah, no, no, I appreciate that question. And, you know, I often use rooftop solar as an analogy to
vehicle to go. And I think that's a really good question. I think it's a really good question.
Like, you know, when at some point, solar was expensive, it didn't make any sense, why would
you connect to the grid? And then what launched the rooftop solar industry was regulation, right?
Each state had to pass interconnection, had to provide net metering compensation in many states
offered incentives. And so there was a view that rooftop solar was a public good that we should
encourage consumers because of the benefits, the public good of rooftop solar. And so I think that's
a really good question. And so they put in place the regulations and the policies. Fast forward 20 years, we've got a
multi-billion dollar rooftop solar industry, the price of solar has come down dramatically.
And similarly, I think we need policy leadership to say yes, V to G is an important part of the
energy ecosystem. There have been numerous studies that have shown that electric vehicles
are the single largest source of grid flexibility that will be on the grid in the not too distant
future. And that we need to put in place policies and regulations that will support consumers
on their journey to adopt this technology. So I do think, I think you're right, we can go
in different directions. Like any new emerging technology, there isn't certainty. But when you
look at the trends, most every major OEM manufacturer has announced plans to bring
electric vehicles into the grid. And so I think this is going to be a very common feature of
vehicles going forward. It's whether or not there's going to be ways to leverage these EVs
with their bidirectional capabilities to deliver value to the grid through programs and different
ways that will really reward consumers for providing those services to the grid. So at VGIC,
Vehicle Grid Integration Council, we represent the industry, OEMs,
car manufacturers that all see this vision where EVs don't become a burden on the grid,
where they actually create real benefits. And the more people that recognize the opportunity,
the more policy leadership we have, the more likely it is that this technology will become
more common. Can I offer a counterpoint using your own metaphor, I guess, or comparison?
Well, I think what unlocked residential solar, so I think what you said, the regulation policy
was table stakes, like it had to happen. Net metering had to happen. And so I think that's
going to be in place at that time, et cetera. But actually, what caused the inflection for
residential solar in the late 2000s, which is really when the market started to take off,
was financing. It was when SolarCity and Sunrun and Sungevity and all these companies introduced
the PPA and lease model. And so the value proposition went from put down a bunch of
capital up front and you'll get a seven-year payback to put down very little or zero capital
up front and you'll save money on day one. And that was the dominant model of solar for quite a while.
And I can imagine something similar happening in V2G. Again, if the programs for V2G
monetization and the grid become there, then you can imagine a scenario where the OEM or somebody
says, okay, if you're buying this electric vehicle, buy the bidirectional charger. And in fact,
we won't charge you a dime extra for it. It's not an incremental cost. It's the same cost as what
your charger would have been otherwise. And not only that, but you're going to get whole home
backup for free. But you're going to get whole home backup for free. And you're going to get
you have to let us use the battery sometimes when there's a grid event under these conditions. But
you're getting free home backup. That's a super compelling value proposition. I'd like to see that
emerge. I think something like that is what truly unlocks the market. Yeah, no, I totally agree. And
what made that solar lease kind of a bankable was the fact that you had that policy foundation where
there was guaranteed value over time that you could then finance against and create that kind
of thing for consumers. And so really what we need for V2G is a bankable revenue stream that can create
the environment where these types of financing and leasing innovation can take hold and really
encourage mass adoption. I agree 100%. All right, Steve, this was very fun. Thank you for joining.
Thank you. Appreciate the opportunity.
Steve Letendre is a senior advisor at the Vehicle Grid Integration Council and the founder and
editor of V2Gnews.com. This show is a production of Latitude Media. You can head over to Latitude
Media for more information. And if you'd like to learn more about Latitude Media, please visit
Latitude Media for links to today's topics. This episode is produced by Max Savage-Levinson.
Mixing and theme song by Sean Marquand. Anne Bailey edits the video version of the show.
Stephen Lacey is our executive editor. All of our episodes are now on YouTube. You can subscribe to
Latitude Media for episodes of this podcast and Open Circuit. You can find the audio version of
this show anywhere you get your podcasts. I'm Shail Khan, and this is Catalyst.
Thank you.
Podcast Summary
Key Points:
Electric vehicles (EVs) are increasingly equipped with bidirectional capabilities, enabling vehicle-to-grid (V2G) power exchange, with major automakers like GM, Ford, Tesla, and Rivian now shipping or announcing such models.
V2G relies on three key components
Two architectures exist—DC (off-board conversion) and AC (onboard inverter)—with AC offering lower upfront costs for consumers, especially in light-duty vehicles, and now backed by new safety standards like UL 1741 SC.
Monetization of V2G remains limited today, with most value currently tied to home backup (V2H), while grid service revenue is nascent, though emerging in states like California, Massachusetts, and Texas through demand response programs.
Battery degradation and warranty concerns have historically hindered adoption, but evidence shows low discharge rates in V2G use reduce wear, and OEMs like Nissan have publicly affirmed warranty compatibility.
Policy and financing innovations—such as V2G-as-a-service or leasing models—could unlock mass adoption by offering zero upfront cost and free home backup, mimicking the solar lease model that drove rooftop solar growth.
The shift toward V2G is being driven by both technological readiness and policy needs, with EVs now seen as a critical source of grid flexibility in the transition to clean energy.
Future success hinges on standardized regulations, widespread utility compensation programs, and consumer-friendly financing to turn V2G from a niche feature into a mainstream grid asset.
Summary:
Electric vehicles are evolving from mere transportation tools into dynamic energy assets capable of feeding power back into the grid through vehicle-to-grid (V2G) technology. While the hardware is now widely available—major automakers like GM, Ford, Tesla, and Rivian are shipping bidirectional EVs—full adoption depends on overcoming economic, regulatory, and consumer trust barriers. Current monetization is primarily tied to home backup (V2H), where value is clear and accessible, while grid-level revenue remains limited and underdeveloped.
Technical challenges, such as battery degradation and warranty issues, have been largely mitigated by emerging standards and OEM commitments, including Nissan’s public warranty endorsement. The biggest hurdle remains the lack of a bankable revenue stream for V2G, which could be solved through innovative financing models—like leasing or pay-as-you-go programs—that mirror the solar lease revolution. As policy frameworks evolve and utilities establish compensation programs, especially in key markets like California and Texas, V2G is poised to grow from a pilot to a scalable, cost-effective grid resource.
The convergence of technology, economic incentives, and supportive regulations suggests that V2G will become a foundational element of the energy transition, transforming parked EVs into a reliable, distributed energy asset.
FAQs
You need three things: a bidirectional EV capable of sending power from its battery, a bidirectional charger that can both send and receive power, and a software platform that optimizes power flow while prioritizing the vehicle's mobility needs.
In V2G DC, power conversion happens off-board in the charger or wall box, while in V2G AC, conversion occurs onboard the vehicle via an onboard inverter. V2G AC is expected to offer a lower-cost option for residential light-duty vehicles.
Options include the Tesla Cybertruck with Tesla's charging system, the Ford F-150 Lightning with the Ford Charge Station Pro, GM EVs with GM's bidirectional charger, and partnerships like Kia EV9 with Wallbox or Volvo/Polestar with Decibel.
A V2G DC system costs roughly $8,000 to $10,000 for full installation, while V2G AC is expected to shrink that cost differential to somewhere in the high hundreds to low thousands.
For home backup power, it likely does, as it can replace a whole-home generator. For grid services, value depends on utility programs; in some jurisdictions a 10 kW system could earn around $3,000 per year, enabling payback within a few years.
There is still significant gray area, though Nissan has publicly stated that bidirectional charging with approved equipment won't affect its warranty. More OEMs are expected to clarify warranty terms as V2G capabilities become standard.
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