While most residents will remain in, and benefit from governmental aggregation programs, the choice is up to you. If you receive an opt-out letter and do not want to participate, you will have 21 days in which to return a reply form to IGS Energy, or call them toll free at 1-877-353-0162. If you fail to do that, IGS Energy will enroll you as a new customer. Dominion will then acknowledge the enrollment and send you a confirmation letter reminding you of the pending switch. That letter will mention that you can cancel the switch by contacting DEO within 7 days.