The video claims that the machine operates at 15Wh/L (for the larger version, the smaller version is 20Wh/L). This is 15Wh/33 oz, or 2200 oz per kWh. That's r

The video claims that the machine operates at 15Wh/L (for the larger version, the smaller version is 20Wh/L). This is 15Wh/33 oz, or 2200 oz per kWh. That's roughly one order of magnitude greater than your estimate.