The first is the Middle Tennessee Electric Membership Corporations' map of power outages. They cover pretty much all of Rutherford County and some connected counties. Their MAP (Updated every 15 minutes) shows you the power outages in their zone.
Their map at the time of this blog post shows one active outage.
The other manner to check power for those that live in LaVergne or who might work in Nashville is the Nashville Electric Service Map. They are showing right now 3 outages.
So when you wake up and you have no idea what is going on, you can get a basic idea of how the day might be going with these two maps.
Power outages might seem unimportant to those not living there, but street lights can be affected, and travel in this commuter age is very important when it comes to getting to work on time during the rush hours.