The energy and mineral resources minister said the DA had no clue what they were talking about and had limited knowledge on the subject matter.
He said the transition from carbon emissions would take time.
“Economist Chris Hart advised the DA that if you close coal immediately, it will mean fewer jobs and the country would be relegated into a fourth world economy. They cannot listen to that because they cannot read,” he said.
“There is nothing called instant energy. It is not coffee you just mix with water and drink. You build the infrastructure and it takes years and you connect to the transmission.
“The 2,600 megawatts from renewable energy was announced in October and we are hoping they will start connecting. It does not mean there will be 2,600 megawatts next week. It means building the infrastructure to connect the 2,600 megawatts has started.”
Mantashe said the DA's involvement in the debate was ill-informed.