The federal opposition is mulling a deal to save the renewable energy target (RET) by excluding the aluminium industry from its purview.

Labor leader Bill Shorten has indicated that he would consider the idea of treating the aluminium industry as a “special case” for exemption from RET on the grounds of the large numbers of people employed by the sector. Australia’s aluminium sector directly employs roughly 4,500 people, generating around $5 billion in exports…