                       Developing a National Stock Model to Support Building Energy Efficiency Research and Policy in Egypt Rokia Raslan 1,* , Anna Mavrogianni 1 1 Bartlett School of Graduate Studies, University College London, London, UK * Corresponding author. Tel: +44 (0)2031085972, Fax: +44 (0)2031085986, E-mail: r.raslan@ucl.ac.uk Abstract: In Egypt, the building sector is responsible for 60% total electricity consumption and around 70% of resultant CO 2 emissions. Due to the growing population, a high rate of rural electrification, increased use of electrical appliances and the “heat island effect” exacerbating overheating in major urban centers, the residential sector has become the main consumer of electricity in the country. Following the recent spate of power blackouts, government policy has attempted to reduce peak electricity demand through the introduction of various measures, highlighting the improvement of the efficiency of the building stock as a significant contributor to achieving this aim. To support this goal, there is a need to develop a comprehensive physics-based energy use model for the Egyptian residential building stock to estimate the baseline energy consumption and provide insight on the future of its energy demand. In addition, the model can be used to assess the environmental and socio-economic impacts of micro-renewable energy technologies and fabric upgrade solutions that reduce energy demand while maintaining lifestyle, health and comfort. This paper will present a framework for the development of an Egyptian Domestic Energy Model (EDEM) supported by a representative database of building stock archetypes. The scope and functionality of the model are presented and the envisaged overarching structure and components are illustrated. In addition, new and existing data sources (such as the CAPMAS Egyptian Housing Survey) that could be used to populate the underlying databases of this model are discussed. Keywords: Energy Efficiency, Residential Sector, Stock Model 1. Energy Consumption Trends in Egypt In the period leading up to the 2011 revolution, Egypt witnessed a trend in sustained economic growth. As with many developing economies, despite having one of the lowest installed electricity generation capacity levels per capita in the Middle East (under 500 Watts per person), this triggered a rapid increase in the per capita energy consumption. Between 1990–2006, the average annual growth rate of energy consumption per capita reached 2.34%, closely following the average annual growth rate of real GDP per capita which reached 2.27% [1]. In an attempt to keep up with the growing trend in total consumption and peak demand, both the total generation and peak generating capacity have also grown steadily (Figure 1). It was thought that an 8% margin was maintained between the installed electricity capacity (the maximum power that can be generated at one time) and peak load (the maximum electricity demand level). However, the recent spate of power cuts and blackouts in the summer of 2012 have raised concerns of a systemic electricity capacity shortage and have had substantial economic, political and social impacts. For example, frequent power outages result in significant losses for enterprises and manufacturing in forgone sales and damaged equipment [2]. An examination of recent electricity production and use statistics highlight three key issues; firstly, nominal generation capacity is less than summer peak demand and, secondly, peak electricity demand has increased by more than 300% between 1992 and 2011 and finally, the customer base using what electricity is generated has increased five-fold in the past two decades. The implementation of an integrated strategy that combines both relevant