We just dropped off my daughter's application packet this afternoon - quite a process!
NC offers free classes for all high schoolers (public, private, homeschoolers) but the early colleges that are run by the public schools and are on the college campuses have very limited space. Preference is given to "at risk" students. I forget the wording, but it seems pretty clear that they are looking for a particular kind of student for these programs, so its not really open to everyone through that avenue.
The good news is they seem open to take as many qualified homeschoolers as they can accommodate - as long as there are available classes. My daughter was in a private school but really wanted to switch this year, so we hustled and got our homeschool paperwork submitted last week, placement tests complete this week and all the paperwork assembled and submitted today. I feel like I've run a marathon through a jungle while hacking at things with a machete - the program is different at every community college so we had to shop around. Not to mention all of the websites are in varying stages of outdated/irrelevant. One school we looked at was easy to get admitted to, but there was a specific list of classes required to finish the program with no variation. They didn't seem very homeschool-friendly overall.
The one we chose had higher admission standards, but more classes and sections to choose from. Once she finishes the 33 hours required for the "Career and College Promise" program, my understanding is that she can take other classes for free. Unless something has changed, they get 4 Fall/Spring semesters paid by the state as long as they are still high school students.
A third school only had night classes (6 - 9pm) and web classes.
We should hear something in the next few days and I hope it turns out to be a good thing. She's also taking Algebra 2 with a homeschool co-op.