Well this episode either they turn the electricity on, or it stays off the rest of the series. I think they will turn it on but there will be a catch. It may only be certain areas of the world that get it back. Or the electricity comes back but it causes unpredictable electrical storms and they have deal with those going forward.
The people who have the ability to turn the electricity on in a limited fashion obviously hold the power.
They've setup the plot similar to Rick - [Miles] v. The Govenor [Monroe] or whomever else holds the power.
Thus far the writing in Revolution hasn't been as good as the Walking Dead. It however, IMO has gotten better. And so have the actors in their parts.