Weighted Average Solar Radiation in Brazil for CO2 Off-Cycle Credits using a Battery Charging Solar Roof

The limits of tailpipe CO₂ emissions are getting lower worldwide and the automobile manufacturers are looking for both on-cycle and off-cycle technologies to reduce these emissions. Some new innovative technologies are being studied to help reduce emissions. The use of the so called eco-innovations such as a battery charging solar roof to claim off-cycle credits of CO₂, is already regulated in Europe by the document “Technical Guidelines for the preparation of applications for the approval of innovative technologies pursuant to Regulation (EC) No 443/2009 of the European Parliament and of the Council”. According to this document, the average solar radiation in Europe is 120W/m². In Brazil, in which the latitudes are lower than in Europe, the weighted average solar radiation, according to the licensing trend has not been calculated yet. This work presents a weighted average solar radiation for Brazil, according to the state licensing trend for 2015-2025 and typical meteorological year analysis of the Brazilian solar radiation in main state cities. The objective is to use these data in calculations of CO₂ off-cycle credits by using a battery charging solar roof.