Integrated Energy & Transport e-Mobility Model (IETEM©) – a library of EV models. This library of models allows projecting macro and micro trends of e-Mobility over years and assess its impact on grid, environment, and Government budget. The model is tested and applied to develop quantitative road maps for multiple developing countries including Philippines, Maldives, Bhutan, India, and others. It covers, EVs growth projections (different segments), Charging infra requirements, Grid Impact, Grid upgradation requirements, Grid energy mix planning, GHG estimation, Health impact estimation, TCO analysis, Govt. budget & fiscal incentives planning