L.V.
My twins did the same thing at that age so I would say it is normal. They wake up around 7:30/8:00 and would nap from about 1-3 and then go to bed around 8:30. I got a lot of advice from my mothers of twins club and some people told me to let them drop the nap but others told me that if I wanted them to still nap (of course I did!!) then to keep trying. It was hard, some days they would nap and other days they wouldn't, and that lasted for a few months but they are back on schedule with their naps and they are almost 3 now. I used to lay down with the crazy one (my son) in order for him to calm down and take a nap. Other times I would just put them in my bed with a video or read a book to them and just have some quiet time. Bottom line, keep trying, I think they still need it at this age and eventually he will be back on track.
Good Luck!!