390 - Analysis of energy supply strategies in housing retrofit

摘要

Within the framework of the International Energy Agency's (IEA) "Solar Heating and Cooling" implementing agreement, the working group "Advanced Housing Renovation with Solar and Conservation" Task 37 was set up with the goal of describing renovation standards that are possible today, looking into and discussing new developments and implementation strategies at an international level. The focus is on joint national and international renovation projects in residential buildings whose energy consumption for heat and cold supply (space heating, hot water, auxiliary systems, and ventilation) was to be reduced by a factor of four below the national standard. Monitoring results show a good agreement of measured energy consumption with the expected reduction of energy consumption by a factor of sometimes more than five. Solar and other renewable based energy supply systems enables a net zero energy approach even in building renovation.