On demand using energy have a tendency increasing successively while source of energy limited existing is raises awareness render researching and development for support demand in the future. In addition attention about affectation from using various energy that maybe affect to environment it is other one factor that have importance to using energy selection. Stirling engine is one of innovation energy that consistent with this proviso. Is can using energy existing indefinitely such as solar energy or residue energy from production process to Stirling engine for electricity manufacturing. Stirling engine is the expansion of air when earn heat engender pressure. And can to apply is power at drive generator. This project therefore do testing efficiency of Stirling engine by use heating coil for source of heat energy. And research relate variable that affect to capacity of Stirling engine.