Open Access Peer-reviewed Research Article

A comprehensive wind resource estimation and economic analysis for Rakiraki, Fiji

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Wind rose and wind speed
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Submitted   Apr 15, 2020
Published   Jun 5, 2020
Issue    Vol 2 No 2 (2020)
DOI   10.25082/REE.2020.02.001

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Kaushal Kabit Kishore corresponding author
School of Engineering and Physics, University of the South Pacific, Laucala Campus, Suva, Fiji
Ajal Kumar
School of Engineering and Physics, University of the South Pacific, Laucala Campus, Suva, Fiji
Sione Tausinga
School of Engineering and Physics, University of the South Pacific, Laucala Campus, Suva, Fiji
Dinesh Rao
School of Computing and Mathematics, University of the South Pacific, Laucala Campus, Suva, Fiji

Abstract

The wind resource assessment for three locations in Rakiraki, Fiji are carried out. The wind resources at Rokavukavu and Navolau has been analyzed along with the nearby Tuvavatu site. The annual diurnal wind speed, wind shear and turbulence intensity were analyzed.  Rokavukavu, Navolau and Tuvavatu site has an average wind speed of 5.91 m/s, 8.94 m/s and 8.13 m/s respectively at 55 m above ground level (a.g.l). The wind direction for all the three sites is predominantly South-East. The diurnal wind speed pattern and the wind shear pattern for all the three sites were consistently similar.  The turbulence intensity at Rokavukavu, Navolau and Tuvavatu were found to be 14.9%, 17.1% and 11.7% at 55 m a.g.l.  The Weibull parameters and the wind power density were obtained for all the three sites by using the moment fitting method.  A high resolution wind resource map for the three sites were obtained using Wind Atlas Analysis and Application Program (WAsP). The WAsP analysis indicates good wind potential at Navolau and Tuvavatu site for power production. The annual energy production (AEP) with six Vergnet 275 kW wind turbines for Navolau and Tuvavatu site is estimated and an economic analysis is performed, which exhibited a payback period of 5 and 6 years respectively.

Keywords
wind energy, WAsP Analysis, Weibull distribution, annual energy production, economic analysis, Rakiraki, Fiji

Article Details

How to Cite
Kishore, K., Kumar, A., Tausinga, S., & Rao, D. (2020). A comprehensive wind resource estimation and economic analysis for Rakiraki, Fiji. Resources and Environmental Economics, 2(2), 143-157. https://doi.org/10.25082/REE.2020.02.001
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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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