Hydro One Ltd. is a Canadian Utilities company with a low-risk ESG score of 15.1. It operates regulated transmission and distribution assets in Ontario, serving approximately 1.5 million customers. The company's main focus is on transmission, accounting for 60% of its rate base, while distribution makes up the rest. In addition, Hydro One also has a small telecom business. The province of Ontario holds a significant 47% common equity stake in the company.