Ireland have one of the most liberal regulations in the EU for installing domestic wind turbines.
Basically, small turbines are considered as an exempt development - in other words, you don’t need to look for planning subject to some conditions.
For domestic houses, the total permitted height of the turbine from ground to blade tip is 13m. The distance from any boundary to the base of the turbine must be its height plus 1m. The rotor must be less than 6m in diameter, the turbine can’t be attached to a building, can’t carry advertising logos, and must quieter than 43 db at the nearest dwelling. The full list of exemptions can be downloaded by clicking here.
Skyrota 5Kw Vertical Axis Wind Turbine easily meets these criteria.