From the Vunderbox video, we know the medium power inverter is 10kW and it is used to power climate control and battery thermal management. The two systwms combined cannot use more than 10kW. A more relevant data point is charging at work when it is hot out. I use a 6kW charger, the charge rate is 17-18 mi/hr which translates to about 4.5kW into the battery. The other 1.5kW is charging and battery cooling loss. When I remotely set the climate control with the interior temperature of 136-140, the charge rate goes to zero, implying that at least 4.5kW is going to climate control. Once the car cools down, it will begin charging the battery again. Hence, the AC will not draw 4.5kW if the car is already cool. I am guessing when it is hot out and the car is cool it draws ~2kW. The service people in Scottsdale agree with this estimate.