Yes if you have "free" electricity you have a big advantage.  Since no cost to run you can keep running there is not a time it cost more to run then it makes, which again big advantage.  So having will cut reward but you still earn BTC for mining after and with "free" electricity you should still do well.

I would make sure you have the amount of "free" electricity for 2.   As I have no idea what your set up is like as far as electricity available.