Not good

A reason to stay current with your bills:

The multiple breakdowns of power supply in the emirate that has once again left residents sweltering in the heat is the result of improper maintenance by the Sharjah Electricity and Water Authority (Sewa) of its US made generators, Gulf News has learnt.
...
[A]n informed source in the industry told Gulf News ... said the fact that one of the main suppliers of Sewa had stopped all shipments of spare parts and services since the beginning of the third quarter of this year has affected the performance of Sewa. Sewa has been disabled from coping with peak demand from its subscribers.

"The supplier of the spare parts - a renowned international manufacturer of energy products - decided to stop shipments due to an outstanding amount of around $1.5 million (Dh5.5 million) Sewa has either disputed or refused to pay on time," he said.

Sewa says maintenance is not the issue. Read it all.

There is also a capacity problem. Some buildings in Sharjah have gone years without authorization to hook up to the grid.

As far as temporary outages, one solution would be to buy electricity from neighboring emirates. Besides the fact that they likely run near peak capacity in the summer months, there is a more fundamental problem: last time I checked, the Dubai and Sharjah systems were not interconnected. Remember the Dubai blackout of June 2005?