Wind energy assessment plays a critical role on determining installation of wind turbines in many countries
worldwide. Wind analysis and economic analysis are proposed to systematically assess the potential
of electrical energy production for commercial wind turbines. Statistical information of wind data and
power curves of wind turbines are applied for determination of factors in decision making such as annual
energy production and capacity factor. Accordingly, financial indices and reductions of both fossil fuel
consumption and carbon dioxide generation are examined for installing potential wind turbines. The
uncertainties of financial indices are determined under variances of parametric inputs within confidence
intervals. Case studies are investigated in the central region of Thailand, which has a high demand for
electricity. Annual mean wind speed is between 3 m/s and 5 m/s along directions of tropical monsoons.
With the proposed methodology, a wind turbine with low cut-in wind speed, such as the Vestas™ V60
850 kW, can be recommended as one of the most feasible wind turbines for electricity generation in
green economy under weak and moderate wind conditions in the considered sites. The annual energy
production has the most impact on the uncertainty in the net present value, among other financial
parameters