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To guarantee power supply with a required service reliability every time in an economical, ecological and resource saving way utilities have to schedule the energy allocation for the next day. In addition to forecasts of the demand this planning is based on forecasts of the non-schedulable supply by distributed plants using renewable energy resources. Although this portion is difficult to predict renewable energies gain more importance because of political guidelines and social trends in Germany. This prediction task is complicated further by the fact that in deregulated markets the system has to respond to changes in load demand fast and at low cost.

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In many emerging countries, like on the Arabian Peninsula or China, new cities are planned and built from scratch in areas with no existing infrastructure. The load density is expected to become very high within the next 10 to 15 years. To handle such high load densities network structures for the distribution networks are required which are characterized by a very high flexibility and scalability. Based on the example of Dubai Waterfront planning steps for such networks are presented and explained.