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Eskom will know by the end of the month whether it needs to increase its electricity tariffs.
The parastatal says it is awaiting a determination from the National Energy Regulator of SA.
The power utility asked Nersa last year to evaluate and approve the regulatory clearing account balance for its previous multi-year price determination control period, between April 1, 2010 and March 31, 2013.
The RCA is a regulatory mechanism that allows Eskom to adjust for over or under recovery of revenue, as initial price determinations are based on projections and assumptions.
If the variance is between two and 10%t, tariffs are adjusted. If more than 10% it is recommended that affected parties be consulted in a formal process.
Eskom says customers could see an increase or decrease in the price of electricity as a result of its submission.