The key elements of feasibility and fitting to the whole system are the long-term and strategic thinking. These particularly apply in case of energy supply since the quickly evolving nature of it implies the possibility of making decisions against the goal. One of the main differences between renewable and conventional energy source is the limitations of supply. While a system powered by fossil fuels provides immediate and continuous supply only limited by pipe diameter, then a system with different inputs from renewable sources depend on various factors such as weather conditions, land area etc. Assuming a high share of installed capacity from renewables, the issue of land need becomes a challenge. To optimize the use of available land without interfering with living areas an energy model is needed.
A precisely structured energy model based on settlement meteorology and energy consumption data – provides a comprehensive overview about the objectives of the settlement. Furthermore it determines the most favorable composition of different renewable sources specialized for the given location.