The increasing presence of smartness in buildings to increase the energy efficiency of these buildings makes it difficult to properly anticipate the impact of these technologies. The development of digital tool for creating residential load profile are prolific but their use, especially applied to smart buildings being able to combine both power and thermal energy management, are unavailable.This research presents a tool developed to integrate power and heat demand using a flexible topology to define buildings energy needs across time resolution. It also integrates small-scale renewable energies such as wind and solar to increase the production of local electricity. The entire model can be parametrised and personalised through its user interface. The model demonstrated robust simulation load profiles generation throughout all time resolutions