How The System Works

A graphic of a transmission line. There is blue sky and trees.

The story of how electricity gets from the power plant to your home or business is a fascinating one.

The story of how electricity gets from the power plant to your home or business is a fascinating one. Large quantities of power cannot be stored efficiently, so electricity is produced ‘on demand’ and consumed as soon as it is produced.

In order to do so, it must travel long distances across a complex network (grid) of transmission and distribution lines, terminals and substations—at close to the speed of light. Watch our video to see how it all works.

Hydro currently has nine hydroelectric plants, one thermal generating station, four gas turbines, and 25 diesel plants generating electricity. We also maintain 54 high-voltage terminal stations, 25 lower-voltage substations, and thousands of kilometres of transmission and distribution lines across the province.

View NL’s electricity maps here:

Newfoundland Grid

Labrador Grid