Strangely enough, this happens to be an area I know something about, having consulted to electricity concerns on risk management.
1. Congress could fund a "cold storage" facility for spares of the very large transformers that will go in the first EMP wave and cannot be manufactured and delivered in something like under 18-24 months. (And btw, these are made in China now, so consider the implications).
2. Create a 100% tax deduction for the purchase of small gas, propane, wind, water, and solar generators. Basically create a tax break for decentralizing the grid.
3. Harden the existing infrastructure. This is technical, but could be done across all of the American grid for about $4 billion.
But none of this matters because the evil, murdering liars in DC consider us much easier pickin's if we're cold, hungry, and in the dark.
Frowning takes 68 muscles.
Smiling takes 6.
Pulling this trigger takes 2.
I'm lazy.