Nyanzvi munyaya dzehupfumi dzinoti dambudziko reZesa rekutadza kuwanira nyika magetsi riri kukonzerwa nekutadza kwayo Zesa kubhadhara zvikwereti zvayo zvemagetsi kumakambani anoti Eskom yekuSouth Africa , neHidroelectrica deCabora Bassa yekuMozambique .