Ann: MEDIA RELEASE H1 2022 NPAT USD60 Million UP 231%, page-132

OMH should start selling its green credentials, using hydro power is not only cheap but good for the environment. This is especially true when producing silicon metal which requires 13,000 kWh of power to produce one tonne, almost as much as aluminium.

carbon dioxide emission per ton of metal silicon using thermal power as energy is 15.91 tons of carbon dioxide.
carbon emission per ton of silicon metal using hydropower as energy is 5.32 tons of carbon dioxide

"Analysts said that as the upstream of the silicon industry chain such as organic silicon and polysilicon, metal silicon is a major carbon emitter. It takes 13,000 kWh to produce one ton of metal silicon, and the carbon dioxide emission per ton of metal silicon using thermal power as energy is 15.91 tons of carbon dioxide. Equivalently, the carbon emission per ton of silicon metal using hydropower as energy is 5.32 tons of carbon dioxide equivalent. It is expected that the new capacity of the industry will be severely restricted in the future, which will promote the price of silicon metal to maintain high prices."