Mr. Denis O'Sullivan:

We have undertaken extensive studies on this. On fertiliser, there is no requirement for chemical fertiliser in the process we have outlined. The digestate coming from the AD process goes back in as the fertiliser to grow the grass so there is no requirement for chemical fertiliser.

On the volume question, the targets we have set out for renewal gas would require something in the order of 15% to 20% of the amount of slurry that goes into storage every year, that is, the slurry the Deputy spoke about where there are issues with weather conditions and trying to spread it. It provides a solution in that regard. It also prevents the emission of methane from the land-spreading of that slurry by containing it and putting it through an anaerobic digestion process, by stripping out the methane as an energy source.