You raise an interesting question: how many people would you be able to bus how far into nature to spend how long with zero electricity consumption to make it net-negative compared to the consumption incurred in the course of their habitual lives?

My naive orders-of-magnitude guess is ~20 people in a bus going ~100 miles (each way) would only need 2-4 days before the net goes negative.

It's kinda crazy how much compute is dedicated to streaming HD video or serving an endless scroll of Instagram.