Mark, that's interesting. I get the impression that projects get forever tossed around between Irish Rail (and maybe CIE for fixed assets), the NTA, and of course the Department of Transport. A case of too many cooks?
The 26kv/1500v dual-use issue seems to imply long-distance electrification of some routes. The Irish rail system is so small that partial electrification is going to bring problems with relatively small fleets constrained from system-wide use. Have the maintenance and the operational (i.e. inflexibility) costs of this been properly internalised into any investment appraisals? I have my doubts.
The rather pathetic decision-making process revealed by the 2700 saga does not inspire confidence.