The Retrofit-Kit integrates five complementary technologies:

AMS's Smart Wall, a sustainable External Thermal Insulation Composite System (ETICS), iWin's solar-generating windows with integrated photovoltaic venetian blinds, METSOLAR's customizable Building Integrated Photovoltaics (BIPV), and VENTIVE's retrofittable heat pumps. There is also the 3d Printer, where four partners are developing (ITA, UPV, CARTIF, and VIAS).