Valoração dos Impactos da Geração Distribuída no Equilíbrio Econômico-financeiro da Concessionária Considerando um Modelo de Negócios

Abstract

The growth of Distributed Generation (DG), especially the Photovoltaic Solar Energy (PV), for the residential and commercial low voltage (LV) consumers, instigates the discussion on the valuation of DG impacts on the economic-financial balance of utilities. In this way, this work proposes a methodology that projects the adoption of PV, simulates the technical impact on the electricity grid, and calculates the economic-financial impact on the utilities’ cash flow. This methodology is applied in scenarios that reproduce the current regulation and a business model with concentrated storage in medium voltage. Through the electro-energetic simulations, it is concluded that the adoption of PV by LV consumers reduces the energy demanded, which is directly reflected in loss of revenue energy for the utilities. Likewise, the growth of PV contributes to the decrease of Minimum Demand and Power Factor, and overvoltage issues. Regarding the economic-financial impact, it is concluded that pricing consumers for the use of the Distribution System is the most profitable way for the utilities to be reimbursed for the availability of the electrical network. In addition, the business model was able to decrease the Maximum Demand, performing a peak shaving on the feeder load curve.