The epileptic power supply in the society today has become a chronic problem in our industrial sector. This inconsistence in power supply can be outwitted by using biological gas like improving biogas electrical power output using fuzzy logic controller. This can be done in this manner, characterizing the network under study, designing a membership function that analyzes the increase of biogas electrical power, designing a fuzzy rule that sticks in the increase of biogas electrical power output, designing a Simulink model for Improving biogas electrical power output using fuzzy logic controller and comparing the percentage biogas electrical power increase with and without fuzzy controller. The result obtained shows that biogas electrical power output without using fuzzy is 8KW while when fuzzy is incorporated is 10.77KW which is 14.78% increase when fuzzy controller is incorporated than when it was not imbibed.