SolarEdge is making a home DCFC

[chl]

I thought relying on DC fast charging was not exactly healthy for the batteries. I thought DC fast charging was only when you need quick charges like on long road trips. ?

Yes, it's the thermal stress that is the culprit.
The slower the charge the less thermal stress.
So if you don't need the speed, don't fast charge.

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[chl]

We are getting close to testing the cells, so I will be able to quantify it...but I won't be able to share the results. I think the timeline is to dismantle a couple of modules is late July or early August. If you see me suddenly selling my truck, you will know.

OK. Too bad you can't share the results here. Will they be published anywhere?

 

[intensifi]

I am signing up for the Enphase integration unit which will support V2H, etc.

EnPhase will be following the newer V2H standard adopted by IEEE.

Question remains if Ford will update the software on the existing trucks or only support the Sunrun unit for the ‘22-‘24 Lightnings. I have my doubts.…

 

[Yellow Buddy]

I’m not concerned with 24 kw DC versus 19.6 kw AC that’s converted to DC in the truck. I see no benefit at this point.

The benefit (if you have solar) is the conversion loss. Instead of converting it from DC to AC and then back to DC, you can go straight DC to DC.

I haven’t reviewed the documents but I know my (older) system has nearly a 25% loss between transmission distance and the inverter conversion. I believe I saw somewhere another 10% through the Ford charger and into the truck battery.

Even if it saves only that 10% conversion back it can be a significant benefit if you drive enough. For me, I’m utilizing roughly 9MWh/year for the Lightning alone and roughly 35MWh/year between all 3 cars so there’s a potential payback period

 

[scottf200]

I thought relying on DC fast charging was not exactly healthy for the batteries. I thought DC fast charging was only when you need quick charges like on long road trips. ?

Wait ... this isn't "fast charging" tho. This would be DC slow charging. That is way higher kW ... think 70+

Your battery always gets charged with DC with the difference the AC->DC inverter in your car coverts it to DC or the AC->DC inverter at the charging site converts it before it gets to your car.

 

[Frankhpns]

If I read this correctly, it will be a 24kW DCFC that can pull straight from solar/battery/grid and also allow V2H and V2G. I don't really need to charge that fast but wow.

https://www.businesswire.com/news/h...rectional-DC-Coupled-Electric-Vehicle-Charger

We have a 30MWH per year solar system and have net metering here in Florida. I set the charge time to electric company TOU on the truck to reduce charge cost. A direct solar to truck system would not do us any good.

 

[Runaway Tractor]

Calling it DCFC is lying for the purpose of marketing. It's DC, but it is not FC. One is not required for the other and kWh is kWh no matter the source. It doesn't matter if the AC power is converted to DC using the onboard level 2 charger, or offboard on this charger mounted to the wall of your house.

The advantage of this system is the ability to send a solar system's DC power directly into the vehicle without being converted multiple times. It is certainly more efficient. And it also enables (theoretically if they do it), that high voltage DC flowing backwards to the house's solar inverter. This would let your vehicle battery literally and properly act as a power wall working in the loop with your other solar, inverters, storage, etc.

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