This research proposes the development of a modelling framework for renewable energy transition based on a bottom-up approach integrating energy systems with economic, environmental and societal preferences with local customization possibilities. The model will be validated and applied to a developing country, Nepal, using historical data through different checks and model performance indicators. The framework shall be further extended to incorporate capabilities of assessing impact of climate change on the transition also through a bottom-up method. Development of the comprehensive modelling framework will be a contribution to the global scientific community. Furthermore, in-priori evidence-based guidance for formulation of climate resilient renewable energy policies and policy-to-practice recommendations for Nepal shall be the tangible outputs of this research.