OGEMA (Open Gateway Energy MAnagement) is an open software platform that supports standardized building automation and energy management. The OGEMA platform can be applied in households, commercial environment and industries. OGEMA links the customer’s loads and generators to building automation and energy management applications. By providing a manufacturer- and hardware-independent platform, OGEMA allows energy flows within end customer premises to be optimized with high degree of modularity. Web-based user interaction and other basic functions are provided by a framework architecture shown in the illustration beside.