Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Public policy for rooftop PV generation
Submission Author:
Margarete Saldanha , RJ
Co-Authors:
Margarete Saldanha, Manoel Antônio da Fonseca Costa Filho, BRUNO CAMPOS DOS SANTOS, Julio Nichioka
Presenter: Manoel Antônio da Fonseca Costa Filho
doi://10.26678/ABCM.COBEM2023.COB2023-0315
Abstract
This work proposes an incentive program for rooftop photovoltaic distributed generation in Rio de Janeiro city, as an alternative to the traditional centralized generation. The study case was performed in the neighborhoods of the West Zone in the north of the Pedra Branca massif, using the web applicative Mapa Solar Rio from the Rio de Janeiro city hall for prospecting the roof area available and the photovoltaic generation potential. The study followed the family composition of four people per household. After inserting a list of frequent devices, the annual average electric energy consumption and expenses were obtained through a simulation performed on the local utility website. Complete installation options of 700 kWh/month and 2,100 kWh/month mounted with the same commercial photovoltaic module were considered. Their retail values came from a market search. The total energy losses were fixed at 18.0%. The total distributed power generation was approximately the same as the Mauá 3 thermopower plant and Foz do Chapecó hydropower plant, located in the Amazonas and Santa Catarina States, respectively. The first has an installed capacity of 583 MW and has produced 377,784 MWh as a monthly average through an enterprise of R$ 1.1 billion. The last has an installed capacity of 855 MW, and have produced 379,550 MWh as a monthly average, with a construction expense of R$ 4 billion. In scenario 1, the government will subsidize fifty percent of the purchasing and installation costs of the photovoltaic systems in 543,000 homes, adopting the double the photovoltaic generation needed to meet the families’ demand, to inject the surplus into the network. The feasibility appraisal considered official data of construction and O&M costs of the traditional above-mentioned power plants over a 25-year horizon, and the terms of the energy purchase auction. On the other hand, the surveyed installation costs and the estimated energy generation of the distributed photovoltaic power plant were taken into account. The results obtained by the performed analyses show that applying programs that encourage the generation of photovoltaic energy in residences, is cheaper for the government than the construction of a new thermopower plant. Additionally, this proposal brings social benefits as income generation for low-income people, besides the well-known environmental ones.
Keywords
photovoltaic, Solar Energy, feasibility study, Distributed generation
