The Ontario Geothermal Association (OGA) is a not-for-profit organization representing geothermal energy system designers, drillers, installers, equipment manufacturers and distributors to advance Ontario’s geothermal heating and cooling industry. The OGA strives to be a bridge between consumers, Government, and industry professionals while acting as a voice to increase awareness of the importance of working towards using a greener, cleaner and self-sustainable energy source.