In this project we want some major components to development of an overall concept for an economically viable greenhouse with high energy (acronym "EXE glasshouse" Exergy Efficient greenhouse). The EXE greenhouse consists of the integration of: (1) 'Energy balancing'-screens, (2) heat vapor and (3) techniques that reduce CO2 loss. Within this project the following two kascomponenten be developed: (1) 'Energy balancing' screens for use during the day (EBSD) and (2) the vapor heat (DWP). Also, a greenhouse equipped with these two components, is cost effective and results in a significant energy savings. This project responds to four of the five focus areas of the frame.