While I am not a Tesla owner (yet), energy consumption holds true for both electric and gas (more throttle = more usage).
For me, I have found that between 152 and the grapevine, I will typically not get the normal range for my car (esp if I am driving a car that goes into boost). Also, I tend to drive faster than normal on the 5 - usually because the road is wide open - but, also, trying to get to the destination as quickly as possible.