Calibration of Reanalysis Data against Wind Measurements for Energy Production Estimation of Building Integrated Savonius-Type Wind Turbine

Andoni Gonzalez-Arceo,Maitane Zirion-Martinez De Musitu,Mario Del Rio,Alain Ulazia,Oscar Garcia

doi:10.3390/app10249017

Andoni Gonzalez-Arceo, Maitane Zirion-Martinez De Musitu + Show 3 more

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https://doi.org/10.3390/app10249017

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Journal: Applied sciences	Publication Date: Dec 17, 2020
Citations: 4	License type: CC BY 4.0

Affiliation: University of the Basque Country

Abstract

In this work, a cost-effective wind resource method specifically developed for the ROSEO-BIWT (Building Integrated Wind Turbine) and other Building Integrated Wind Turbines is presented. It predicts the wind speed and direction at the roof of an previously selected building for the past 10 years using reanalysis data and wind measurements taken over a year. To do so, the reanalysis wind speed data is calibrated against the measurements using different kinds of quantile mapping, and the wind direction is predicted using random forest. A mock-up of a building and a BIWT were used in a wind tunnel to perform a small-scale experiment presented here. It showed that energy production is possible and even enhanced over a wide range of attack angles. The energy production estimations made with the best performing kind of calibration achieved an overall relative error of 6.77% across different scenarios.

Highlights

Small wind turbines are a useful technology for transitioning to a more sustainable energy model.They are a good way to decentralize electricity generation, an objective set by the European Union through its 2009/72/EC directive [1]
We deduce that taking into account multiple grid points does not add meaningful information to the analysis in terms of predicting the wind speed
The results show that the annual energy production (AEP) and Capacity Factors (CF) over 10 years are slightly higher than the AEP and CF

Summary

Introduction

Small wind turbines are a useful technology for transitioning to a more sustainable energy model.They are a good way to decentralize electricity generation, an objective set by the European Union through its 2009/72/EC directive [1]. Being installed on already urbanized areas, they avoid some of the environmental [2] and social [3] impacts of conventional wind farms, such as land use, visual pollution of natural areas, and destruction or disruption of habitats. They can be installed alongside solar panels to create hybrid generation systems. Power generation becomes more stable compared to pure photovoltaic system of the same rated power In isolated installations, this can lead to a lower set-up cost because less batteries are needed to ensure that demand is met [4]

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