I don't think Microsoft has anything to contribute to that, because no, I don't think Microsoft possesses the technical competence to deal with these systems. They might have more /generalized/ infosec knowledge, but snark aside, I doubt they have the resources they need to really dig into SCADA security simply for the fact that they've never really needed to. I think it'd take them years.
It'd take them years to build a power plant, though...