In my hotel were fancy surge protectors for each of the A/C, TV and fridge. On the street were lots of relatively quiet generators.
I experienced power outages in Inle Lake, but not in Yangon.
No power, in no Wi-Fi, no internet.
Tip: have a flashlight! Handy on poorly lit streets too, given the absence or disrepair of sidewalks, not to mention holes and raised things to trip on.
