This study aims to efficiently electrical energy in the Muhammadiyah University of Yogyakarta building by auditing all electrical quantities such as voltage, current, frequency, harmonics, load imbalance and power loses by using the Metrel 2892 gauge while the measurement time is 15 minutes for 24 hours during office hours in the MVDP panel of UMY E6 Building. This study uses the standard limits SPLN D5.004-1: 2012, the results of electrical energy audit research Building E 6 get the results that the voltage harmonics of each phase of R 2.08%, S 2.72%, T 2.62% within the standard threshold SPLN D5.004-1: 2012. While the current harmonics have an imbalance of R 12.31%, S 12.40%, and T 13.33% are still within the threshold of SPLN D5.004-1: 2012. The amount of the harmonics affects the 3rd and 5th order harmonics which have a total power loses of 24.41 Watt / minute