The Developing Applies Building Photovoltaics for Performance and Reliability (DAPPER) project seeks an answer to the following questions:

• How can we increase the reliability of photovoltaic systems integrated into buildings, the so-called Building Integrated Photovoltaics (BIPV)?

• How can we improve predictions of the energy generated by solar panels in or on top of buildings

• How can we facilitate smart monitoring ,predictive maintenance, and energy management?

Here we look for new designs of facade-integrated PV panels and their power converters and new concepts for optimal integration in building facades, as well as searching for the right choice of components and design rules. We develop data-driven models and digital twins that enable constant monitoring and performance prediction, detect deviations early, and better predict mutual interactions. A physical model with PV panels in the building will enable better designs of buildings with BIPV and better performance predictions, including lifetime effects. We are looking for data analysis procedures that can be implemented in building energy management systems in combination with advanced sensors.