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A comparative analysis of real and theoretical data in offshore wind energy generation
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Resumo(s)
Wind energy plays a key role in the global shift towards renewable energy, requiring accurate prediction models for integration with power grids and effective energy distribution. This study validates the accuracy of wind speed forecasts from three widely used sources – European Centre for Medium-Range Weather Forecasts (ERA5), Modern-Era Retrospective Analysis for Research and Applications, MERRA-2 (NASA), and the Wind Atlas – against actual power generation data from the WindFloat Atlantic offshore wind farm near Viana do Castelo, Portugal, over the years 2022 and 2023. The results show that NASA's forecasts were the most precise, with annual relative errors of 5 % for 2022 and 1.6% for 2023, outperforming the other models. This analysis underscores the importance of validated forecasting models to enhance renewable energy management through multi-year data for precise local calibration. The findings also emphasize the necessity of consistent short-term load forecasting models for reliable daily energy production. Overall, this research demonstrates that combining global wind datasets with local validation improves offshore wind prediction accuracy. In this context, NASA's dataset emerges as the most reliable for operational and planning purposes in offshore renewable energy systems.
Descrição
Funding Information:
This research was funded by Instituto Politécnico de Setúbal and the Portuguese Foundation for Science and Technology under project grant UIDB/00066/2020.
Publisher Copyright:
© 2025 The Author(s)
Palavras-chave
Renewable energy Wind energy forecasting Wind offshore Wind power predictive models Energy Engineering and Power Technology General Engineering Electrical and Electronic Engineering SDG 7 - Affordable and Clean Energy