-renewable talk-
One of the largest current problems with any energy generations sources like solar/wind/hydro/geothermal/dog farts is that no technology exists to effectively store that generated energy for long periods of time at a maintainable cost. Compared to all the technological advances in the past century energy storage is still in the dark ages. Since no effective mass storage exists and renewable generation is intermittent it is not a reliable source. Fossil-fuel generation has the advantage being stable and if you run into a situation where you need more energy then you just throw more fuel on the fire and activate another turbine. Only a small percentage of all energy generation in the United States is based on renewable sources, and none of it is used as a main source of generation.
I know not every country follows the same trends as the US but there is a big reason why many do not consider renewables as a large scale primary energy source. Clean (not in the environmental sense), reliable, and consistent power generation is a necessity for any modern economy. Machinery and computer systems are very sensitive to power fluctuations and a knock out can cause millions, and in some cases billions, of dollars in losses. Many areas in the world run at a fairly significant level of over-generation to prevent brown and black outs. That brings up the point on how big of a cluster forget the entire power infrastructure is. Power generation is one of the sectors that government regulation has had a large negative impact on for both suppliers and consumers, but I have to go now so I can't expand on that quite yet.
