The electricity grid is the interconnected network of generation facilities, transmission lines, substations, and distribution systems that delivers electrical power from where it's produced to where it's consumed. Canada's grid consists of several regional interconnections that can share power across provincial boundaries and with the United States. Power flows from generating stations (hydroelectric dams, nuclear plants, natural gas, wind farms, solar installations) through high-voltage transmission lines to substations that step down voltage for local distribution networks reaching homes and businesses. Grid management requires constant real-time balancing—electricity supply must exactly match demand at every moment since large-scale storage remains limited. System operators coordinate this balance, dispatching generation sources and managing imports/exports. The grid is evolving toward a "smart grid" model accommodating distributed generation, electric vehicles, and two-way power flows.