Is hydro ottawa asking customers to call a 1 800 number? OTTAWA -- Hydro Ottawa is warning customers that a phone scam is going around. In a tweet, the utility says it’s been hearing reports that customers are receiving phone calls claiming to be from Hydro Ottawa, demanding payment, or directing customers to a 1-800 number to avoid having their power shut off.What does hydhydro ottawa do? Hydro Ottawa (Hydro Ottawa) is the main electricity provider in Ottawa (Zipcode: K1S), Ontario, that gives service to its habitants. Call in the event of a power outage or electricity-related emergency.How do i activate my hydro ottawa account when i move? To activate an account with Hydro Ottawa when you are moving to Ottawa, simply call customer service at +1 613 738-6400. You will need to provide the following information: You may also be asked to provide some ID (such as your drivers licence number).What is the mailing address for hydro one canada? Mailing Address Hydro One Networks P.O. Box 4102, Station "A" Toronto, ON, M5W 3L3 Large Accounts ExpandCollapse Key Account Management Email Media Requests & Inquiries ExpandCollapse