The situation of the power grid is acceptable.... not stellar, but it has been known to be worse that it is now. If EZE gets 3 days of temperatures above 34C, expect to experience some blow-outs.

Dont want to scare you... but San Telmo is not one of the best places in town to be in terms of the power issue, it is known to have more that its fair share of outages.

However... one catch to all this. Even if you are in a 'bad power' part of town, your ultimate luck will depend on the details of where you are exactly. What do I mean by this...? If you happen to be near to -say- a Hospital, or a mid-tension hub transformer, chances are you will be spared of the worse trouble, as outages will be taken care of more quickly. I dont know exactly where you pad is located... but I guess that this summer you will be finding out very soon what your power situation is.