Re: "expensive and unreliable state energy"
1) I presume that your "loadsamoney" comment is about things like that failed Welsh tidal energy project and the long delayed nuke plants at Hinkley Point. You're correct that the money is there, but the existence of funding doesn't mean that it's being applied for the greatest benefit of the project. The EDF nukes are a particular case in point where the public sector has asked private enterprise to do the work and the private firm has not delivered while costs spiral. (Source: I work in energy management, we deal with this crap all the time.)
2) The Dublin datacentre wasn't positioned on the grounds that the power was available. It was put there because it was cheaper to put it there and build the infrastructure than it would have been to put it where the infrastructure already existed. That's what large companies do. Again, I'll agree with you that building their own was the only option if they wanted to locate in Dublin, but that does rule out the possibility that Dublin was not the only option for where to locate.
3) "Replace the PSU" was what I was pushing at, but the point is that the old PSU didn't stop working - you had to replace it because you were asking too much of it. We are not actually in disagreement about how Microsoft should go about handling their energy needs. The point of contention is that you're blaming EirGrid for not doing enough to accommodate MS while I'm blaming MS for building their datacentre in the wrong place so they could save a few bucks.