Check your load shedding schedules because the power utility extends Stage 2 power cuts to every night until Thursday.
Eskom updated South Africans in a tweet about the continued power cuts in order to fix emergency generators.

“In order to continue replenishing the emergency generation reserves, and address additional risks, Stage 2 loadshedding will be extended from 21:00 tonight until 05:00 on Thursday” -Eskom