This research introduces a methodology named Lean Electricity, which changes the paradigm on the way energy service is conceived. By applying demand side management strategies, characterizing users by their consumption insights, breaking down the whole service provided in smallest services grouped by similar appliances, the methodology shows an alternative for providing energy to off grid households. Furthermore, a model for compare which model, generation costs, are more favorable for connecting Colombia’s off grid households, the one proposed in this research or the model Colombia’s energy ministry uses for this populations. The comparison includes a case using photovoltaic cells, on an effort to promote clean energy generation. Likewise, the Lean Electricity methodology is evaluated within the Colombian regulations, in order to determine specific facts that restrict better alternatives for the off grids populations, considering the perspective of a company that provides the service. Finally, the results of the research show that Lean Electricity presents an alternative for providing electricity in populations that lack this, improving quality and reducing generation costs. Also an application for calculate the demand curve in any population is included for supporting the methodology.