I've noticed that on almost every trip, irrespective of how gently I drive, the ambient temperature, battery state (warm or cold) or HVAC status, my initial power consumption is always high, usually somewhere between 300 and 500Wh/km. It immediately starts to come down but what is responsible for this initial high energy use? My long-term average is 183Wh/km so overall the car is pretty efficient but I assume that it would be even lower of the car weren't using so much initial energy