PT PLN (Persero) WS2JB Region Lahat Baturaja is one of the State Owned Enterprises (BUMN) which is the largest electricity company in Indonesia. In carrying out its operations, PT PLN (Persero) WS2JB Region Lahat Baturaja has been aided by information technology and computerization. There are many activities conducted by PT PLN (Persero) WS2JB WS2JB Region Lahat Baturaja one of which is the data processing operations report. Data processing operations report has been pretty good, but there are still some shortcomings including that separate report data when it is stored into the computer, and still have to enter the formulas when performing calculations. This has hampered the company's performance because it will slow down the processing of the operations report to be late and could cause a delay in reporting to get to the Manager Area. However, the authors attempted to create a program that is more effective and efficient so as to accelerate the process of data processing operations report for operation activity.As for staff of the research methods used were interviews and document analysis. In developing the system author uses the method waterfall (waterfall). The results obtained from this study is the Application of Processing Operational Activity Data Reports at PT PLN (Persero) WS2JB WS2JB Region Lahat Baturaja