Optimization of Smart Building Performance Based on the Smart Readiness Indicator

Abstract

This paper presents a rigorous mathematical model and an innovative methodology for optimizing smart building performance through the Smart Readiness Indicator (SRI), a key tool that can help address the energy inadequacy of Europe's building stock, which requires intelligent retrofits to meet nZEB standards and emission reductions by 2050. The SRI (EU Directive 2018/844) assesses adaptability and energy efficiency, but current audits overlook budget constraints and regional differences. The aim of this work is to overcome the gap through a novel ILP (Integer Linear Programming) approach to identify optimal configurations of commercial devices in order to maximize the SRI within economic limits. The proposed model quantifies improvements and transforms the SRI into a planning tool for Decision Support Systems (DSS) enabling automated matching between owners and manufacturers for efficient retrofits aligned with EU sustainability goals. The article concludes with future integrations with the Building Information Model (BIM) for automated assessments toward intelligent and user-centric buildings.