Modelo de análise econômico-financeira das distribuidoras de energia elétrica na ótica da geração distribuída

  • Carmen B. Rosa Universidade Federal de Santa Maria, RS
  • Mauricio Sperandio Universidade Federal de Santa Maria, RS
  • Breno C. Pinheiro Centro Internacional de Energias Renováveis–Biogás, PR
  • Rafael C. Ney Companhia Estadual de Energia Elétrica Grupo Equatorial, RS
Keywords: distributed generation, economic-financial impact, cash flow, net present value, electric utilities


There is scientific evidence that consumers have a growing motivation to move towards a distributed generation of electricity, but the power distribution companies expressing considerable concern about the impact of increasing penetration rates of distributed generation on their revenues. In this sense, this study presents analyzes and laboratory simulations based on a business model that encourages the sale of surplus generation. The power flow simulations in the feeders include a storage agent, which negotiates the purchase of surpluses and provides ancillary services to the utility. With these data, the economic- financial analysis was proposed, contemplating the discounted cash flow and comparing the different scenarios. The study identified competitive scenarios from the point of view of the concessionaire's market value when considering the payment of the TUSD by the prosumer and the storage agent. Furthermore, it showed that in both experiments with residential and commercial consumption classes, the sale of surplus energy would bring greater attractiveness that would result in a greater number of prosumers with photovoltaic distributed system, thus evidencing equity in the economic sustainability of micro and mini generation distributed, consumer and distributor agents.