The South African Photovoltaic Industry Association (SAPVIA) has added its voice to those expressing concern about the potential negative consequences arising from the revised unbundling plan for Eskom, which was announced in December. Under the revised structure the National Transmission Company South Africa (NTCSA) will remain a subsidiary of Eskom Holdings and will continue to own the transmission assets, while a separate Transmission System Operator (TSO) will be set up outside Eskom to handle system and market operation, but without owning the underlying infrastructure.