Eskom has accused energy regulator Nersa of trying to punish it in earlier decisions on electricity tariff increases.
It claims Nersa did this by unlawfully rejecting Eskom’s valid claims to income that would be recovered from consumers through higher electricity tariffs.
Now it wants to recover R35 billion it claims to have missed out on from consumers.
Eskom’s finance head, Calib Cassim, said Nersa acted irrationally by not following the prescribed methodology in making the decision it led to.
Cassim made these accusations in a supplementary affidavit filed in court last week in support of an application to overturn three Nersa decisions about additional income for Eskom in terms of the so-called regulatory clearing account.