Energy is one of the factors that are important to developing countries. Energy demand is likely to increase continuously. Human energy sources currently used are mainly derived from fossil fuels such as coal. Natural gas and crude oil, fossil fuels are these quotas and are expected to disappear in the time shortly. With the price of crude oil on the world market is currently relatively high variance in the right direction. In addition to burning these fuels causes global warming due to the State.Greenhouse gas discharge out. Cause the flow to seek new alternative energy is a renewable energy potentials and clean energy as renewable energy use from fossil fuel energy alternatives, there are various types, each type will vary, but in this article covers the alternative energy of microorganisms.Alternative energy's microbial treated as an important alternative energy type, for example, microbial ethanol. Hydrogen from microbes and bio-gas, etc.