Hi,

At first glance it may seem obtuse that I am including a short video on BMS for BESS (battery energy storage systems) in an AUTOMOTIVE newsletter. "Doesn't he realize that all BMS are not the same?"

While many of you are capable of designing ultra-fast charging capability into the high voltage battery systems in modern electric vehicles, there are those who argue the grid can't handle delivering the power that's needed by >1MW chargers.

Heavy electric truck systems designers: "Hold my beer!"

The heavy eTruck gang have "cheated" those limitations by recognizing that charging has a curve and that peak power levels can be delivered by an integrated storage battery in the public charging station - yes, a BESS. If you think about the grid and the BESS, it's really acting as an integrating storage battery in terms of energy.

With the recent announcement by BYD on 1MW, 10C, 2km/sec, charging of passenger vehicles, and of deployment of a network of thousands of ~1MW charging stations in China, I think it's critical for automotive designers, and keyboard warriors, to understand how such charging rates CAN be supported by the grid, so go for it!

For US-market destined OEMs - try not to pay too much attention to the orange man behind the curtain - battery prices are coming down fast, EV sales are outpacing ICE despite stratospheric interest rates, and sunk funds are irrelevant in terms of domestic battery manufacturing facilities. More on those in my next blog.

Also, the recent dumping of a certain brand of EV likely means huge, unanticipated, opportunity for other EV brands from consumers that are adamant about never going back to ICE. 

"Driven an EV, so no more ICE for me!"

enjoy!

-andyT