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The paper addresses the problem of economic and operational uncertainty in wind energy projects associated with the volatility of wind speed, concurrent electricity market prices and technical characteristics of wind turbines. The study proposes a comprehensive approach towards the feasibility evaluation of wind energy projects in the conditions of limited wind speed data availability at high altitudes and deregulated electricity market in Latvia. The study performs a sensitivity analysis of wind generator efficiency and revenue generation potential across the range of technical and economic factors. The study uses Stochastic Differential Equation (SDE) models for the out-of-sample forecasting of wind speed and electricity prices in combination with Monte Carlo simulation technique in order to come-up with the distribution of revenue projections and efficiency estimates for a hypothetical wind park. A broad range of project development scenarios involving several wind generator types and multiple mast height options is considered. The study is based on proprietary high frequency wind measurements data gathered in the north-western coastal part of Latvia at the range of altitudes of up to 50m and daily electricity market prices from the Latvian segment of Nord Pool power market. The results of the study provide quantitative basis for optimal decision-making process at the planning stage of wind energy projects and highlight the importance of the initial choice of wind generator models.

Economic and operational risks in wind energy projects in Latvia