Newstalk business correspondent Joe Lynam said the 23,000sq/m site would have created more than 500 jobs.

A new sale could value Energia Group at more than €2 billion including debt

On the agenda on Friday for the Taoiseach is a visit to Hanley Energy - a company that works with data centres to provide solutions for their massive power requirements.

The Commission for Regulation of Utilities (CRU) is proposing a measure to ensure new data centres do not put pressure on existing electricity supplies.

Data centres used up a greater share of electricity consumption than urban homes in the Republic last year

The planned Ennis data centre has been moving for six years through various stages including strategic site assessment, zoning and planning.

That is according to an appeal lodged to An Bord Pleanala by Servecentric against a decision by Fingal Co Council.