He lives in Santa Clarita, he won't be on the grapevine. I live in Castaic which is at the base of the Grapevine. Anyhow, I am driving 64 miles round trip, pretty much the same drive he is going to be taking, if I charge to 100% and do not charge at work, I am in the first red line and car announces low battery right as I drive into the driveway.
I have been trickle charging at work, get the battery back to 80% and drive home is fine.
I agree , you will have to trickle at work, especially because of two things, one being the range decreasing over the life of the car and two, the carpool lane. You will not be in much stop and go traffic in that lane, so you will use lot of power. The drive up to the 14 /5 merge takes alot of power, but just stay in the right lanes, keep with the trucks and you will do ok there, the ride down that hill is great, regan all the way, then the 405 carpool lanes will use up power, and then the hill at the 101/405 not only will you be on a steep hill, you will be in the carpool lane. The ride down that hill should help alot and then it all flat from there. Trickle while you work!
Just my two cents