Hydrogen cell power being piloted to try to remove copper wire content.
Western Cape investment and promotions body says it has secured the deal.
Exports went down 11.5% to R163.97 billion, while imports decreased by 9% to R149.9 billion.
The improvements increase efficiency and reduce operating and maintenance costs.
The warehouse has a 10,000 sqm loading area and holds a record for tonnage discharged in a 24-hour period.
Customers in South Africa can expect to see the new-look models by the fourth quarter of this year.
The system transforms ordinary road transport trailers into clean and efficient electricity sources.
