Energy trading company Energy Exchange of South Africa (EXSA) has announced the appointment of Dr Roelof van Huyssteen as its head of regulatory. This was the latest of the company’s top-level executive appointments, following those of Aneeka Savahl as head of legal and Retief Ferreira as COO, both in March. EXSA, established in 2017 and awarded a trading licence by the National Electricity Regulator of South Africa in 2022, provides grid-connected renewable energy to corporate clients through “wheeling”. (This involves the delivery of electricity from a private generator to an end-user by means of an existing distribution or transmission system.)