No, the electric company is now LUMA, you can call them and get someone who speaks English. We just had our appointment to change the service to our name yesterday, it was a 20 day wait.
In Palmas we have our own water utility, I think most of the rest of PR has the one national company. I would also call them.
As for cost, everyone tells us water and electricity is very expensive. Our first water bill was $50 and the first month electric was $285 for a 2400 sq ft home, all air conditioned.