Why do you still use nonrenewable resources to generate electrical energy?

The reason why countries use non-renewable energy sources such as oil, coal and natural gas is simply because the infrastructure to use these is already there and it is cheaper. We are now starting to build the infrastructure needed to use renewable energy sources such as solar and wind power but it is expensive to do so and the cost to build the necessary equipment would make the price of the power very high. So, when it comes right down to it- the answer to your question is: Because it is cheaper!