Correct, but if you're skilled with electrical gear, you can make electricity.
A car alternator, belt, pulley, a bit of wood, and a running river, can give you constant power.
That power can run our soldering iron, refrigerator/freezer, or other useful things.
The guy who knows all the in's and out's on a car, can give you reliable transportation. In the case of the recent walking dead episodes, he can give you a way to drive down the tracks quickly, rather than walking for days. (Hint: a Chevy S10 has the correct distance between wheels to sit on the rails)
A big enough mini power plant can run arc welders. Building foot thick steel reinforced concrete walls is better than hiding in almost any house.
And for the record, I'm a long-term IT guy. I also have experience in electronics, refrigeration and HVAC, automotive work, firearms handling, and farming. I'm also spoken for. My friends and family already know where to meet up if there happens to be an apocalypse. They have the written plans and maps. If an apocalypse happened, we'd be set back up and having LAN parties within a few weeks. :)