The more I think about this site, the more I think this might be the first operational "V3" supercharger.
* Large site - check
* Battery buffers - check
* Solar canopies - check
We might be finding out the details of V3 from Baker.
* 5 battery packs for 40 stalls suggests 8 stalls per V3, which is a perfectly cromulent number.
* BUT, there's 20 cabinets, so still 2 cabinets per stall. This could suggest that one buffer feeds 4 cabinets, each of which feeds two stalls. But that would be a rather inefficient design unless the cabinets are now higher power. The whole point of a well-balanced system is to ensure that you have a nice mix of vehicles early in their charge and late in their charge, avoiding situations where all of the vehicles connected are early in their charge and wanting more power. Hopefully they've upped maximum cabinet power.
* 210kWh per charger means 2-4 full charges (excepting Semi
), and even more in terms of partial charges. Sounds like a sweet spot for a buffer.
* Last pricing I saw on 2 powerpacks was $145k (incl. inverter and install), so ~$72,5k for the buffer for each "V3", and $362,5k for the whole stations's buffers. Which is really not much at all. This will
definitely be a savings versus demand charges. Demand charges are normally killer for superchargers, but this will cut them dramatically.
I wish there was an easy way to figure out how much power the powerpacks are capable of outputting... they're 210kWh, but how many kW? Looks like the inverters they use are 250kW each.... but how many are there? Hmm... If we had this we could figure out how much power they've got going to the cabinets, to get a sense of whether the cabinets are higher power.