Hi Devsco,
I can't help with getting you through the process, but I have an online account with AEE/PREPA (the electric company) that I see in English. Try this link: Ìý It has a summary of what you need to do as a residential customer for service. I know parts of the AAA (water company) website can be seen in English, but unfortunately I can't find the link to get you there. (If I do, I'll post it later.)
When I set up my own accounts, I know it helped (or maybe it was required) to have the account number and/or name of the last owner of the electric account. The same is true for AAA (the water company: acueductospr.com). Be prepared if the last account was left with money owed, you might have to pay the bill or spend time finding the old owner to pay the bill. (If the utilities were just turned off but the accounts were never closed, maybe you can just re-open them.)
If the utilities consider your request as a transfer, it will be simpler for you.Ìý If they consider this new service, you may be required to get electrician's or plumber's inspection certificates, I'd like to tell you that this is easy and can be done quickly, but usually it's just the opposite!Ìý Good luck!