The energy sources have been split into three categories: fossil fuels, renewable sources, and nuclear sources. The fossil fuels covered here are coal, petroleum, and natural gas. The renewable energy sources are solar, wind, hydroelectric, biomass, and geothermal power. The nuclear-powered sources are fission and fusion.
All of the pages can be reached from anywhere within the "Types" section by the links on the left column. Remember, understanding the implications of ALL the energy sources will enable you to gain the insight you need, both to successfully rule your country in the energy crisis game and to perhaps to one day discover a way to solve the real-life energy problem.
On the LEFT column, there are links available. Clicking on a link at any time will take you to the main page of the particular topic. Below are the links to the three categories of energy.