"The thesis demonstrates the important role of hybrid mini-grid systems for rural electrification in developing countries. It undertakes a technical, economic, environmental and socio-political potential assessment for hybrid mini-grids for rural electrification in developing countries. First, it characterizes the market potentials and growth forecasts for hybrid mini-grids for rural electrification in developing countries building upon the latest trends in international development. Then it undertakes a rigorous technical assessment of the mini-grid distribution infrastructure, hybrid mini-grid configuration options and renewable energy generation technologies focusing on solar and wind energy. Consequently, the thesis develops an economical feasibility study for a mini-grid system based on 100% renewables on a remote island in Southern Thailand using the energy modeling software HOMER. Several simulations are run and the results are discussed and contextualized. Business model options for hybrid-mini grids are discussed and important factors characterized, such as tariff schemes and financing modalities. Contrasting economic and technical feasibility of hybrid mini-grids with local factors determining their implementability, adds the socio-political dimension to the analysis on hybrid-mini grids for rural electrification in developing countries. Finally, the regulative and policy framework for hybrid mini-grids is discussed, as only an enabling environment allows large scale and sustainable deployment of hybrid minigrids for rural electrification in the developing world."