There is an increased risk of load shedding due to loss of generating capacity, Eskom said in a power alert at lunchtime on Tuesday.
It said the likelihood of rotational power cuts was "medium".
The beleaguered power utility urged consumers to turn off all "non-essential appliances".
The last round of load shedding occurred in February.
The debt-laden power utility has not yet instituted rotational power cuts in March, although it did last week warn of a 'high risk" of stage 1 load shedding.
On Monday Minister of Public Enterprises Pravin Gordhan, chair of the Eskom board Jabu Mabuza and the power utility's CEO Phakamani Radebe met 11 industry specialists who have been appointed as members of its Eskom Technical Review Team.
The team, according to a statement, will examine plant unavailability due to scheduled maintenance, plant unavailability due to unplanned outages and unscheduled maintenance and operator errors resulting in power plants tripping and shutting down.
It will also probe technical and operator-associated inefficiencies resulting in lower than optimum electricity output from the power station units.
The task team is expected to help Eskom improve its plant efficiency and cut down on load shedding, among other things.