[RE-wrenches] Chevy V2H

[Chris Sparadeo]

Jay,

Let me attempt to give you a quick(ish) overview of this system.

The “GM Energy Storage Bundle” is a V2H / ESS setup made up of a salad of
white-labeled components and GM-native equipment. It can be configured as
V2H only, or paired with 10–35 kWh of stationary storage for added
redundancy.

At the heart of the system is the Home Hub (MID). It has an integrated 10
circuit busbar rated at 164A (randomly), with a max subfeed of 125A. No
smart load functionality. It can be set up as either a 100A-200A main lug
only OR with a 100- 200A Eaton CSR main breaker. A little odd on paper
since it’s 200A in but only 125A out. If you’re integrating AC-coupled
solar, you’ll need to add a GM Acrel meter inside the Home Hub. There’s
also an optional 100A non-backed-up loads panel, which can only be used
for the EVSE circuit.

The PowerShift charger is the bidirectional EVSE. It’s rated at max 80A
continuous charge (100A circuit), and it can be derated down to around 16A
without affecting backup performance. The AC circuit must originate from
the non-backed-up section of the system. The PowerShift also includes a 50A
DC connection that feeds the GM Energy Inverter. One thing to note is that
when the charger is in discharge mode, the vehicle can’t recharge from
either AC or DC-coupled solar.

The Energy Inverter is a 9.6 kW multimode inverter with four MPPT inputs if
you’re DC coupling. If there’s no PowerBank installed, you need a Dark
Start Battery. That comes with a prefab whip and connects straight into the
inverter to provide 12V control power so the system can start up during an
outage. No direct generator integration. Select 3 phase configuration, but
really a split phase offering.

System Advantages:

GM has made bidirectional capability standard across all new GMC, Chevy and
Cadillac models, which is a big plus with compatibility hunting. Everything
runs through the same GM app as the vehicles, so it’s a pretty clean user
experience. The PowerShift setup also gives you some flexibility since it
uses both AC and DC paths. That makes it easier to derate the charger or
install it on a load management device to get that load calc to pass.

System Disadvantages

The product is still pretty new, and it shows. Commissioning can take a
while, usually around two hours but sometimes much longer. I've heard
horror stories of 6+ hrs when things go wrong.  The 125A subfeed limit in
the Home Hub can be a constraint depending on the job. No one wants to
derate their brand new 200A MSP to 125A. Also, the PowerBank is only IP55
rated, and the install manual suggests avoiding moist locations, even
indoors, which can be limiting, especially in jurisdictions where indoor
ESS installs are highly regulated (thinking of San Jose and LA County).
There have also been some reliability concerns with components like the
Home Hub, inverter, and PowerShift. If something fails, it can essentially
brick and need full replacement.

Overall, it's the one of the few bidirectional systems on the market that
is currently functional and confirmed compatible with multiple vehicles. If
you are up for enduring the growing pains of a large automotive company
testing out our market.... give it a try! A solid B-

On Sat, Apr 4, 2026 at 6:57 PM Jay via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Hi all
>
> Does anyone know anything about the new to me Chevy V2H inverter, and
> other equipment?
> Thanks
>
> Jay
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