Project Summary

To design and implement a district heating and cooling system that will meet more than 50 % of the demand using renewable energy technologies. The system will flexible, effective and attractive to be implemented in new developments.  
 Typically, in cold and mild climates the heating energy demand exceeds the total electricity demand both in domestic and office environments. Present CHP plants are almost always designed to meet peak demand which means on average, they operate at part load capacities. This means that they do not operate at their maximum efficiency point. Due to seasonal changes, the ratio between heat and power changes significantly. For example, during winter, the heating demand is dominant and during summer the heating demand is very low or non existent. In some places the heating demand turns into a cooling demand in summer. Producing heat in bulk is the most energy efficient method. Hence, from an energy point of view, district heating systems become attractive. This however, comes with the added disadvantage of distribution losses. Usually, for close range district heating systems, the efficiency gain outweighs the distribution losses. The energy savings of using a combined heat and power systems is a well documented  proven fact. However, the potential of combining other renewable energy sources like wind energy, solar thermal energy and solar electricity has not been harnessed effectively to date. This is mainly due the discrete nature of the energy production patterns and the demand patterns. The current project aims to combine a number of renewable energy sources and minimize the use of fossil fuel usage for a target cluster of buildings. This will be done through matching of the energy demands and patterns and efficiently storing energy to meet the discrete energy demand patters. Both electricity and heating storage systems will be combined in the system.
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