Horn, BeatrizSoares, OrlandoBrito, Paulo2026-04-212026-04-212024Horn, Beatriz; Soares, Orlando; Brito, Paulo (2024). Utilization of excess energy in photovoltaic plants caused by clipping: efficiency comparison between battery and green hydrogen storage solutions. In VIII Ibero-American Congress on Entrepreneurship, Energy, Environment, and Technology. Rio de Janeiro, Brazilhttp://hdl.handle.net/10198/36554When a photovoltaic plant project is sized, the system can be oversized to achieve greater utilization of the generation curve. However, during peak production times on days with higher irradiance, the generation curve may be cut (clipping), resulting in unused excess energy. This unused energy can be a challenge, especially for energy trading plants, as they are limited in injecting this energy into the grid at the same time as production. This study proposes turning this challenge into an opportunity by suggesting energy storage for later injection into the grid. For this, a comparison of efficiency between battery storage and green hydrogen storage solutions is performed. The analysis considers the same initial conditions for both storage options, along with the respective estimated losses for each process. The objective of this work is to compare the energy utilization profile over a 25-year lifespan of a photovoltaic plant for the two storage systems analyzed, considering scenarios with and without replacement of storage systems. The results of this study, which only compares the energy efficiency ratio, highlight a greater stored energy for the battery system and a trend with more attenuated variations for the green hydrogen system.engconference object