In case you don't know, I started another blog recently, called the Smart Grid Security Blog. I generally try to keep the DOD Energy world separate from the Smart Grid Security world, but as you can imagine, there are undeniable points of intersection.
Here's a post linking to a very well framed recent article by a colleague of mine. It's a great summary of key cyber security issues and actions for Smart Grid initiates. And the strategies it recommends are as applicable to Fed Gov and DOD as they are to all sectors. Think about the security controls being built in (or left out) of new DOD and DOE garrison-level microgrid deployments such as the one discussed here.