The Congress of South African Trade Unions is calling on Eskom’s board to properly account to Parliament. This eNCA reports after Eskom’s non-executive director Busi Mavuso walked out of a hearing to account to the Standing Committee on Public Accounts. She’s defended her decision to walk out after telling MPs that the board’s attempts to save Eskom are being hampered by the ANC. But Cosatu says that’s not good enough.