The above comes from a relatively short, five-page paper, The Sky is Falling: Space Weather EMP's, Solar Flares & Grid Resilience. This came from a presentation from Thomas Popik. This is a good primer if you have not studied up on CME or EMP, or don't know what those three letters stand for.
In King County, Wash., there is a Critical Infrastructure Committee that is part of a larger Emergency Management Advisory Committee (EMAC). One of the projects being submitted for possible funding using FFY17 federal grant dollars is a tabletop exercise on the topic of a long-term power outage that doesn't last just days, but weeks, even months.
Stay tuned and I'll let you know how this pans out. The Department of Homeland Security (DHS) grant guidance for FFY17 isn't even out yet. King County is right to be doing the process and timeline they are on now so that they have well-thought-out and developed projects and are not caught short when the due date back to FEMA is 60 days or less.
It is pretty hard to do a coordinated regional process in such a short period of time.