the home charger delivers 120/240 volts ac which the charger in the car bumps up to 400 dc.im not sure how this would work.

 

Literally states it in the article, will use Gallium Nitride (GaN) semiconductors.

Most likely, this Enphase EVSE is similar to how solar (DC) power is converted and boosted to 120/240VAC, but apparently the car is charged on DC as well, so converting and boosting 240VAC to 400/800VDC. EVs already have similar onboard capabilities, when you charge a Bolt on 240VAC, it is boosted to 350-400VDC in the Onboard Charger. It is then converted to AC to power the motors, or voltage reduced to charge the 12V auxiliary battery. So, it isn't really rocket science, but does require the EVSE be capable of communicating with CCS signaling which in turn supports V2X APIs.

Next, OEMs will need to enable energy exporting. Few currently do, Ioniq 9/EV9 are reportedly getting this capability later this year. Leaf has supported it over CHAdeMO for years. F150 Lightning supports exporting.

 

I'm glad to see other players get into this game. Especially non proprietary players. But looking at the current crop of Enphase EVSE's.... Wow. like 2-3x the price of most others. Make even the clipper creeks seem affordable.

 

You do realize, Enphase bought Clipper Creek a few years ago and now sells the classic CC as an Enphase branded product. The prices are a little higher than CC brand, but they are taking things in new directions to integrate with solar systems. Clipper Creek was never a smart charger, Enphase is.

 

I did happen to see this posted already. Mentioned the meter collar to get power to house. That isn't a universal item yet.

 

I wonder if you can skip the meter collar and just got to a transfer switch. Or in my case a main breaker interlock. Right now I'm not concerned with automatic operation. I'll go plug the car in and flip the breakers when power is out. Sometimes its nice to sit in the dark for 30-60 minutes during the short outages. Very quiet and peaceful.

 

I can't find technical details on those sites.
I think the collar is a live transfer. Sort of device

 

I didn't read the white paper they have, maybe more info there. But one of the videos said something about the meter collar monitors grid power and if it drops out will turn on you car generator. I just want to be able to flip a switch and get power on demand.

 

You'd think a standard generator switch should work.

 

One of the This Old House shows installed a model that had the monitor attached to the panel. I was going to cut it from rest of show but I assume it is online at PBS.

 

Right, Emporia Vue is a module that uses CT to measure current flows in the main panel and connects to your WiFi. It can determine how much power you are exporting, signal to the Emporia EVSE to send a current signal to the car to make fine adjustments. So, if I have 5kW of export, it can signal to supply that 5kW to the EVSE instead of exporting. As a cloud covers the panels, it will adjust down to avoid importing grid power, and adjust back up with the cloud passes. Same when A/C kicks in.

In my first month with solar, in the hottest part of the year, I have exported about 50% of the energy I produce, and imported a lot, in part due to charging overnight when solar isn't producing, or when A/C kicks on and charging + A/C exceeds solar generation. So having a solar aware charger would enable me to reduce grid dependence, thus reducing my utility cost. While I don't drive a lot day to day, and still enjoy free EA charging for a couple more months, when returning from trips, it will be more practical to skip a costly charging session before arriving home, which will enable me to replenish the pack in shorter time than current which relies on a 20A L1 source.

 

I'm hoping for perskovite cell soon.