As you can see, Canada relies mostly on hydro power, as does the Pacific Northwest (Oregon 46%, Washington 65%, Idaho 51%). The rest of the US relies on natural gas, and to a lesser extent, coal. In 2021, 38% of the 4120 terawatt-hours generated in the US came from gas combustion. ;Natural gas is sold by the fossil fuel industry as a "clean fuel" or a bridge to alternative forms of electric energy production. True clean energy sources, wind and solar, comprise a comparatively small portion of each nation's energy mix.The use of petroleum is declining, with only the remote regions of the Hawaiian Islands and Nunavut using it as the predominate means of generation.