Renewable energy plays a particularly important role in providing clean energy demands worldwide as we progress from fossil fuel usage to more environmentally friendly and sustainable energy sources. A highly popular source of clean renewable energy is wind energy. Extraction of wind energy is mainly through the use of wind turbines, whether that be the horizontal axis wind turbine or vertical axis wind turbine. The vertical axis wind turbine, or VAWT, has seen an increasing interest in both research and real-world application as of late. Although many design parameters of the VAWT has been studied and reported over the years, such as ideal solidity, turbine blade selection, blade pitch angle, less focus has been directed on the impact and effects of the turbine support arms. In this study, a comparison was made between a two-bladed turbines with dual support arm configuration each connected to the turbine blade against an ideal turbine with no support arms, which is set as the baseline. The power coefficient predictions show a significant discrepancy between the baseline against the full turbine configuration by 37.6% at TSR 2.5. The performance difference increased as the TSR value increases. This indicates that the effect of drag increases as TSR increases. Comparing the flow velocity contour between the two turbines, the overall flow condition of the blade with both the turbine support arms is more turbulent. This indicates that the presence of the support arm structures creates a more turbulent flow and generates more irregular wake that has a negative effect on the power efficiency and power extraction for the incoming blade. These findings could provide a basis for turbine support arms optimization that would enhance fluid flow within the turbine region and therefore, have a positive effect on turbine power extraction as well.