Currently, electricity power consumption is increasing due to the growths of industries and
households while generation system mostly depends on fossil fuels, such as oil, natural gas, and coal.
According to a shortage of these fossil fuels, the fuel prices significantly rise. At the same time, the
effects of the fossil fuels on the environment are seriously concerning because of the global warming. The
interest on the renewable energy is highly increasing worldwide. In Thailand, the Alternative Energy
Development Plan: AEDP 2012-2021