Biodiesel was produced from palm oil using potassium hydroxide and ES-CAT5500 as catalysts. The process involved converting triacylglycerol to methyl ester through transesterification. The study manipulated temperature, reactant type, and catalyst amount to optimize the process. Base biodiesel had a yield of 95.09%, while acid biodiesel had a yield of 74.54%. Qualitative analysis was done using GCMS, and percent recovery was calculated with GC-FID. Energy content was determined with a bomb calorimeter, showing 39368J/g for base biodiesel and 38888J/g for acid biodiesel.