The National Union of Metals Workers of South Africa says its energy conference this weekend is aimed at preventing the renewable energy sector from being dominated by a capitalist system.
Numsa president, Cedric Gina says they are currently facing a situation in which the expansion of the renewable energy sector is rapidly developing along capitalist lines.
The international conference is centred around talks on building a renewable energy sector in South Africa.
He says workers and communities are at risk of being left behind and "being forced to pay the costs of the sector’s expansion".