The facility proposed to convert coal and refinery waste into an impure hydrogen fuel that would be used to generate electricity and fertilizer. HECA was supposed to capture ninety percent of its carbon dioxide (CO2) emissions to theoretically minimize greenhouse gas (GHG) emissions and inject it, ironically, for enhanced oil recovery. If it had become fully operational, HECA would have generated nearly 300MW of clean electricity and will produce one million tons of locally manufactured, low-carbon fertilizer. But, most of the electricity produced by HECA would have been consumed by the different processes at the plant.On March 4, 2016, the California Energy Commission ordered the HECA application to be terminated.