The power plant that the researcher has study a biomass power plant using rice husk as fuel. The current price of rice husk are higher cost in electricity production increased.8 MW and fuel quantity per day 210 tons per day, the price of rice husk, 1000-1.400 per ton. Affect the cost in electricity production increased.According to the second law of thermodynamics, together with the external factors affect the heat value and the efficiency of electricity production, therefore, the use of fuel quantity of spot power plant biomass of this lack of analysis used.The quantity that use suitable fuel, fuel consumptionAt present, right? Can improve the fit or not the study is interested in studying the use of suitable fuel in the production of electrical power plant biomass.Analysis and evaluation of economics for the electric factory