SENSITIVITY ANALYSIS OF OFFSHORE WIND PRODUCTION COST  WITH RESPECT TO WIND SPEED AND TRANSMISSION DISTANCE

Tran Thi Ngoat; Nguyen Thi Thuy Duong

Tran Thi Ngoat Faculty of Electrical and Electronics, Hung Yen University of Technology and Education
Nguyen Thi Thuy Duong Faculty of Electrical and Electronics, Hung Yen University of Technology and Education

Keywords: Offshore wind power, attribution cost, non-linear optimization, GAMS

Abstract

This paper presents a nonlinear mathematical model to analyze the effect of wind velocity on the cost of electricity generation (LPC) in an offshore wind power project with the research scenario of the La Gan wind power project in Vietnam. Using the GAMS modeling tool and input data from the pre-feasibility study report of the La Gan project, the study carried out sensitivity analysis for many scenarios with average wind velocities ranging from 5 m/s to 9 m/s, transmission distances ranging from 30-90km. The LPC model is established based on the components of investment cost (CT), operation and maintenance (CM), and annual power output, in which the power output is modeled in the cube of velocity. The results show that the transmission distance has a significant sensitivity to the LPC at a low wind speed of 5 m/s and a low sensitivity at a speed of 9 m/s. This confirms that the location of the offshore wind power project should be selected based on wind speed to ensure project feasibility.

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