Whether a deposit is required to start service with Constellation Energy depends on several factors, including the type of energy service you are requesting and your credit history. Typically, deposits may be required for residential or commercial customers who do not have an established credit history with Constellation Energy or who have had past issues with payment. However, some customers may qualify for waiver of the deposit based on their creditworthiness. It is a good practice to review the specific requirements that apply to your situation. You can find more detailed information about deposit requirements and any associated policies on the current web page for Constellation Energy. This will provide you with the most accurate and up-to-date details regarding their services.