Not sure where you can come to a conclusion that this is not commercialy viable when all information coming out of the plant is clearly stating other wise .

" Orbite successfully modified the SGA plant design by incorporating the best practices from the chemical industry and expanding the breadth of its innovative processes, resulting in a significant reduction in the consumption of fossil fuels by at least 30%, and of water by at least 60%. " 

“These advancements represent a major achievement for Orbite,” said Richard Boudreault, Orbite’s President and CEO. “By simplifying and optimizing the SGA plant design, we succeeded in our goal of reducing our dependence on fossil fuels while significantly improving the plant economics. This consolidates our position as one of the lowest-cost and environmentally-friendly producers of alumina and its by-products.”