This paper presents a scalable integration approach for algorithms and models written in fourth

generation (programming) languages for massive Smart Grid simulations as well as applications.

While fourth generation languages (4GL) focus on rapid application development and the

reduction of lines of code, they lack of integration and scalability features. Nevertheless, they are

widely spread and often used by engineers. The scalable integration of such elements is achieved

in this paper by wrapping the 4GL-models and algorithms with established web technologies like

RESTful web services and load balancing. The provision of a seamless integration concept allows

engineers to focus on rapid application development and liberates them integration efforts.-This paper presents a scalable integration approach for algorithms and models written in fourth

generation (programming) languages for massive Smart Grid simulations as well as applications.

While fourth generation languages (4GL) focus on rapid application development and the

reduction of lines of code, they lack of integration and scalability features. Nevertheless, they are

widely spread and often used by engineers. The scalable integration of such elements is achieved

in this paper by wrapping the 4GL-models and algorithms with established web technologies like

RESTful web services and load balancing. The provision of a seamless integration concept allows

engineers to focus on rapid application development and liberates them　integration efforts.