STUDY CLIMATE CHANGE, ENERGY AND ENVIRONMENT SUSTAINABLE TRANSFORMATION OF LEBANON’S ENERGY SYSTEM Development of a Phase Model By applying a phase model for the renewables-based energy transition in the MENA countries to Lebanon, the study provides a guiding vision to support the strategy development and steering of the energy transition process. The Lebanese electricity sector faces three main challenges: an unreliable power supply, a distortive subsidy system and a weak financial stability at the utility level. Sibel Raquel Ersoy, Julia Terrapon-Pfaff, Marc Ayoub, Rawan Akkouch October 2021 The uptake of renewable energy(RE) can contribute to increasing the energy security in Lebanon, as the most pressing concern in Lebanon’s electricity sector is the need to secure a constant electricity supply.