Design and size optimization of a solar tree prototype.

• Grant number: 24/08737-7
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: September 01, 2024
• End date: August 31, 2025
• Field of knowledge: Engineering - Electrical Engineering
• Principal Investigator: Elmer Pablo Tito Cari
• Grantee: Thiago Brommelstroet
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

Off-grid systems are a type of photovoltaic systems that aren't connected to the electrical distribution network and thus enable non-conventional installations in a diverse set of ambiences through the use of batteries. Photovoltaic trees, a type of off-grid system in the shape of a tree, have been a trend in the world, as their utilization contributes to raising awareness about electrical energy derived from natural resources. However, at the moment (2024), the enterprises that commercialize solar trees today in Brazil are focused on lower powers of generation, and thus are not fit for residential charges. In this research project, a solar tree prototype will be developed utilizing the 3D software Sketchup.This project is giving continuity to the term paper "Prototype of a Photovoltaic Solar Tree - Phase 1", in which the first prototype for the solar tree was created and assembled using 3D printing and mini photovoltaic modules (6V,1/2W), a lamp and a phone-charging circuit. In this project, the height and width of the previous prototype will be optimized while also changing the shape of the tree branches to account for risks of rain water accumulation and other bad weather. Finally, the electrical power generation of the new prototype will be evaluated and compared to that of the old model, in order to analyze the impacts of the branch alterations.