In its simplest form, the electrical grid is a power system network that transports electricity from a power station and delivers it to your home. When you are connected to the grid, it means that you can access this power station electricity from home.
There are two types of grids – the transmission grid transmits electricity across large distances at very high voltages and the distribution grids deliver it from the transmission grid to businesses and homes.
The grid in Australia is very large and complex. We have over 850,000 km of distribution grid and 45,000 km of transmission grid in operation nationally. In the eastern and south-eastern states, there is an arrangement in place called the National Electricity Market, which creates a cross-state wholesale electricity market by connecting all the grids. The National Electricity Market is one of the longest interconnected electricity markets in the world.