Comparação ambiental entre sistema fotovoltaico convencional e semitransparente

Abstract

<p class="Normal1"><span class="fontstyle0">The Life Cycle Assessment is a methodology that studies the environmental aspects and the potential impacts associated with a product or service through the formulation of an inventory of resources. Among the various indicators that measure environmental impacts, the carbon footprint stands out for analyzing the greenhouse gas emissions derived from an activity, process or product. The objective of this work is to compare the carbon footprint of a conventional photovoltaic system and a semitransparentone, designed to meet an energy demand of 386 kWh/day. A higher carbon footprint was obtained for the conventional panel system, totaling 3623 kg CO</span><span class="fontstyle0">2</span><span class="fontstyle0">-eq/year, while the semitransparent system emitted 2726 kg CO</span><span class="fontstyle0">2</span><span class="fontstyle0">–eq/year. In both cases, photovoltaic cells and aluminum structures accounted for the greatest contribution to the carbon footprint, in addition to the significant contribution of solar glass. The emission factor was also calculated, associating the electric production capacity with the carbon footprint, obtaining 0.0257 kg CO</span><span class="fontstyle0">2</span><span class="fontstyle0">-eq/kWh for the conventional system and 0.0193 kg CO</span><span class="fontstyle0">2</span><span class="fontstyle0">-eq/kWh for the semitransparent system. From the carbon footprint viewpoint, the semitransparent system is the best option, with significantly lower emissions.</span></p>