Power and energy supply
Modern living is fuelled by electricity. This electricity is expensive both in terms of money and natural resources.
The split of energy resources in 1999:Coal 34%
Nuclear power 17%
Natural gas 19%
Renewables 20%
Oil 10%
The proposed wind power park at Cape Bridgewater, west of Portland, in southern Australia is an example of a practical renewable energy source. However it will create a string of turbines along dunes by the coast, between an internationally recognised wetland used by migratory birds and the endangered orange-bellied parrot. Conservationists are concerned for the bird species and dune ecosystem and locals are worried that these turbines will spoil what is now a spectacular skyline. But there will be increasing demand for electricity over the coming decade, and wind power is one of the better alternatives when considering sustainable versus non-renewable energy sources.