Estudo de viabilidade de planta híbrida eólica-fotovoltaica para compensação de consumo de energia elétrica residencial

Abstract

The concern about fossil fuel dependency and its environmental impacts is leading to a worldwide energy matrix tendency of diversification using renewable sources with less environmental impacts. The present research presents a financial feasibility study of the implantation of hybrid wind-photovoltaic plants (PHEFV) to offset the consumption of residential electric energy for the conditions found in the Metropolitan Region of Fortaleza (RMF), CE. The area under study has average annual wind speed of 4,28 m/s and annual irradiation average of 5,33 kWh/m². The software HOMER Pro is used to determine the best hybrid wind-photovoltaic energy plant for a residential load profile, where demand ranges from 3.3 kWh/d to 33.3 kWh/d. Collected data of irradiation and wind speed are used as energetic resources to the photovoltaic modules and wind turbines. The data and costs of these generation components were obtained from Brazilian companies. For demands between 6.6 kWh/day and 33.3 kWh/day, the optimal way in terms of the net present cost to supply the load is with the use of photovoltaic plants. The use of wind turbines for residential distributed generation is not profitable due to high start-up cost.