Concentrated Solar Power and Biogas

Okay, have you guys heard about or see the words "Concentrated Solar Power" and "Biogas"? They're some of the revolutionary ways of sustainably producing electricity and in the case of Biogas, methane. In other words, they are some of the renewable resources this Earth have. Too bad they aren't being used a lot. I don't know why. But the way they worked could help to extend our resources and replace nonrenewable resources.

Concentrated Solar Power systems worked by, well, concentrate sunlight by means of lenses and mainly mirrors (I think so, since all of the Concentrated Solar Power powerplants I read about on Wikipedia or watch on the National Geographic focused sunlight by mirrors) and used them to heat water, which will turn into steam and spin a steam turbine, which in turn spin the electrical generator to produce electricity. One variation of Concentrated Solar Power is focused the sunlight on heating a fluid that can stay hot for a long time, such as molten salt. The fluid will be used to boil water. The steam will turn a steam turbine, which in turn will spin an electrical generator. That way, much more electricity can be produced than solar panels alone. Biogas is also very effective in producing methane and electricity.

Biogas worked by using some types of bacteria to digest the materials for biogas in an oxygen-free environment. This process is known as anaerobic digestion. The materials to be digested are anything living, recently living, or waste of the living things. So the materials could be leftover food, sewage, animal droppings, leaves... The bacteria used for anaerobic digestion produced a gas with more than one half of its ingredients being methane. Methane will be filtered from the gas, and used for cooking, heating, and being compressed to be used as fuel for certain vehicles. Using the gas or biogas to produce electricity is optional. The remaining byproduct of the materials being used for anaerobic digestion is known as digestate, which can be used as fertilizer.

Spinning electrical generators is much more efficient in producing electricity than using solar panels. Solar panels can't convert all of the sunlight into electricity. So using Concentrated Solar Power and Biogas can sustainably produce electricity and in the case of Biogas, methane. You could keep on doing that for a long time (I'm talking about lots and lots of centuries), and they will never run out, since they are renewable resources. They helped to extend our resources and could help in replacing nonrenewable resources with renewable resources.