"The CLIMAWIN consortium, a group of European SME manufacturers and suppliers of windows and ventilation systems, aims to address a major market opportunity regarding energy efficient fenestration systems for renovation of residential and commercial buildings. Specifically, the consortium aims at developing a novel high performance window with electronic operation of an auto-regulated natural ventilation system and electronic insulating night blind powered by solar power. Through in-situ smart sensors and Radio Frequency Based Technology (RFBT), the system will optimize, in real time, indoor climate on the basis of parameters such as indoor/outdoor temperature, CO2 and humidity etc., thereby providing both better indoor climate and reducing thermal loss. The envisaged solution is expected to promote a paradigm shift for building renovation in the construction industry from expensive and energy intensive heating/cooling systems to cost, health, and energy efficient intelligent windows. The climawin project is primarily aimed at the renovation sector, especially in old buildings which do not have energy efficient ventilation systems. The climawin windows optimize both, indoor air quality while at the same time maximizing thermal efficiency in buildings. It is expected to be a vital component for European Initiatives towards encouraging the use of passive houses since windows are the largest source of heat losses in a building while at the same time, have a high potential for utilizing thermal insulation for indoor heating and lighting."