Implementing Nearly Zero Energy Building concepts BIPV solutions can play significant role only if they are competitive in terms of costs, performance and visual appearance comparing with other RES technologies. SMART-FLeX project is targeting these issues proposing integrated solution for glass façade buildings design, flexible manufacturing and cost effective installation of tailored design BIPV products according architect’s vision.     Purpose of the work The purpose of the project SMART-FLeX is to demonstrate feasibility and cost effectiveness of integrated approach in BIPV products implementation. Integrated approach proposed by the SMART-FLeX is linking building design process and BIPV product implementation by means of production line of increased flexibility when automated production of PV products with tailored PV module design according architect’s vision becomes feasible.   Approach SMART-FLeX project is focusing on steps which are of main importance for cost effectiveness and market acceptance of the BIPV product, namely a) attractive to architects and designers building design tools implementation, b) automated production of custom design BIPV elements and c) cost effective integration of BIPV elements into the building and building electricity grid.   Scientific innovation and relevance Project SMART-FLeX is introducing innovative solutions targeting at eliminating barriers for BIPV market acceptance along value chain for construction product starting from building design, moving onto production process and ending at construction process itself. For the building design process SMART-FLeX is proposing design tool providing architect with freedom for BIPV facade design. On production level project is proposing flexible automated manufacturing concept for tailored to architect’s vision BIPV product. For the construction process project is implementing plug-and-play solution for BIPV product integration into the building envelope. Project is also proposing innovative approach for power production by PV plant monitoring and maximizing the power production (MPPT) from each string of cells under different weather and shadowing conditions.   Results and conclusions Project demonstration site of ~ 600 m2 area, with integrated 180 BIPV façade elements of tailored design and different sizes (maximum size up to 1.7 x 3.5 m) with power trackers of special design and micro inverters was implemented and now is under monitoring.  Successful demonstration of BIPV solution for glass façade buildings is opening possibilities for diversification of the products portfolio targeting other building types and/or integration with other building systems i.e. heating, leading to wider market acceptance due to cost competitiveness of such products taking into account overall building construction and maintenance costs.