Retrofit scenarios for emissions reduction in Italian hotels towards a Post-Carbon City

Nowadays there is an ever-increasing need for energy transition for moving towards a carbon-free economy and buildings play a crucial role in this process, targeted to reach a 90% reduction by 2050. Zero-carbon building concept is taking hold, showing uncertainties and challenges in its achievement. The work focused on the issue of existing hotels, with the aim of investigating the possibility of achieving the ambitious zero-carbon targets. A reference hotel and different retrofit scenarios were simulated through EnergyPlus, in two Italian cities, Milan and Bari, evaluating the models with a multi-objective approach, in terms of comfort, energy and emissions reductions.