ESA Safety Information Current list of product recalls & Safety bulletins Safety is a TOP priority at Halton Hills Hydro Inc. The Electrical Safety Authority (ESA) provides safety awareness, compliance and education in Ontario. See a current list of Product Recalls and Safety Bulletins Find a Local Licensed Electrical Contractor If you are having any electrical work done in your home, only Licensed Electrical Contractors are legally able to do the work. Find local Licensed Electrical Contractor. Visit the ESA website for important electrical safety tips and other electrical information.