Making your electricity payments on time should be a priority. When applying for energy services, the utility company will run your credit history.
If you have bad credit, electricity companies could deny service. However, it's more likely that they will ask you to pay a deposit or submit a letter of guarantee. This is a letter where someone else agrees to pay your bill if you aren't able to.
If you fall behind with your payments, contact your electricity provider right away. Typically, your electric provider will be willing to set up a payment plan to avoid service interruption.