Residential Energy Model (REEM) is a bottom-up engineering-based simulation tool designed to estimate energy consumption across Saudi Arabia’s entire residential building stock, categorized by building type, construction vintage, and geographic location. REEM serves two primary objectives – quantifying residential energy use at a granular level, and evaluating the potential impact of different energy efficiency policies on residential electricity demand.
REEM integrates detailed housing statistics from the General Authority for Statistics (GASTAT), actual electricity consumption data from Saudi Electricity Regulatory Authority (SERA), and insights from published studies on residential energy use. This enables REEM to generate energy use intensity (EUI) profiles for different combinations of building type, vintage, and location. Simulated results are then calibrated and spatially aggregated from provincial level up to the national level, ensuring alignment with observed electricity consumption patterns.