Enersource is one of Ontario's most trusted, reliable energy providers. We serve 200,000 residential and commercial customers across Mississauga - and we provide them with a lot more than energy! We help educate them on electricity safety. We offer conservation programs for residential and business customers. We provide smart metering to help them manage their energy costs. And through our website, we help them manage their Enersource account more easily. more... See more text