Much like any recurring service (cell phone, cable tv, etc.), electricity companies need to determine you are who you say you are, and that you will pay your bill on time.
When you sign up for electrical service in Ada, you will need to provide your social security number and/or your driver's license.
You may also need to pay a deposit, depending on your credit. If you have a history of bad credit, then you will most likely need to put a larger deposit down. One away around that is to find a low deposit or bad credit option for electricity in Ada.