Oireachtas Joint and Select Committees

Tuesday, 14 February 2023

Joint Oireachtas Committee on Housing, Planning and Local Government

General Scheme of the Planning and Development Bill 2022: Discussion (Resumed)

Mr. Justin Moran:

On the life extension, different planning authorities apply different conditions. Some had none in the 1990s. Then, 20 and 25 years became the standard that different local authorities and planning authorities applied. The challenge we have is that a well-maintained turbine has a life expectancy of between 30 and 35 years. That creates an issue of going back for a life extension when the 20- or 25-year barrier is reached. The big advantage of repowering is that it minimises the environmental impact because the same grid infrastructure is used. It may be a completely new turbine, but, in the case of an onshore project, for example, it will use the same 10 km to 20 km of cable going from the wind farm to the grid. That does not need to be replaced. By using existing infrastructure and more efficient turbines, as suggested in the opening statement, will mean that fewer turbines will be needed. This, in turn, will, to put it bluntly, mean fewer holes and less concrete, which, again, involves massive environmental advantages. We would love to see that in the offshore space as well.

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