Has she given up work to do it?
If she has, I'm very envious. I would bloody love to have a year off work while people paid for me to ride my bike. I wouldn't want to take on the mileage TG is taking on, that's just outrageous as you can't do anything else, there's no time, I couldn't mentally get close to it, (nor would I want to!!) but 30,000 miles with no job to me seems pretty easy, a very nice life actually!! I did over 24,000 in 2012 with a job that has long hours.
Good luck to her, I hope she has a great year.