The National Energy Regulator of South Africa (Nersa) has approved a regulatory clearing account (RCA) balance for Eskom of R13.27bn ($763m).The RCA is a mechanism for recouping prudently incurred costs that were not foreseen in previous tariff determinations, as well as making adjustments where assumptions such as inflation and tariff income have varied. The balance will be recouped from standard tariff customers, special pricing arrangement customers and international customers. Eskom and Nersa have frequently found themselves at odds over the RCA as well as tariff determinations.