Wind energy is renewable energy that does not require any fuel, does not create greenhouse gases, and does not produce toxic or radioactive waste. Wind power offers the possibility of reducing the operating costs of the electricity system. Vertical axis wind turbines (VAWT) of the Darrieus type, especially in small installations, are increasingly appreciated in current research on wind energy. H-shaped turbines may provide appealing spaces for new design strategies that seek to reduce the visual effect of the rotors and then boost their degree of integration in a variety of installation contexts. The main purpose of this work is to define and critically evaluate the main design parameters of a 10 kW H-Darrieus vertical axis wind turbine that can be considered as a candidate for rural and off-grid urban applications.