The first step in the process of developing a concept for the transformation of renewable energy sources (RES) for a whole or part of a district heating network is an hourly analysis of the system’s operation. The analysis takes into account the demand for heating power, supply and return temperatures, with special attention to temperatures on the side of end-users. We consider archival data from the last heating seasons, taking into account possible building thermomodernization or new connections.

Together with data analysis, a technical analysis is conducted, determining or limiting the possibilities of implementing certain solutions.