The National Energy Regulator of South Africa (Nersa) announced on Thursday that Eskom’s tariff would rise by 9.61% on April 1, an increase that is less than half the 20.5% hike for which Eskom had applied. The tariff decision includes allowable revenue of R250-billion, against the R293-billion for which Eskom applied, which translates to a sub-inflation increase in the retail tariff of 3.49%.