Why CCUS is needed
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CCUS is essential
Carbon dioxide is produced when fossil fuels including coal, oil and natural gas are burnt in power plants or factories. It is also released in the production process of oil and gas, ending up in the atmosphere. The purpose of CCUS is to “capture” the CO2 before it’s released to the atmosphere and permanently store it deep underground. Capture rates of around 90 percent of total CO2 emissions produced by power plants, heavy industries and refineries are technically achievable. Further research is underway to improve capture rates above 90%.
CCUS is versatile
CCUS is the only feasible technology that can deliver deep emissions reductions in many industrial processes that are vital to the global economy, such as LNG, steel, cement and chemicals production. CCUS can also be applied to coal and gas fired power plants, providing dispatchable low emissions generation capacity to complement the increased deployment of intermittent renewable energy sources, and in the production of low emissions hydrogen for heat and transport.
Production of clean hydrogen from methane or coal with CCUS provides a further pathway for the decarbonisation of industry. This is the lowest cost method for clean hydrogen production. Clean hydrogen production using electrolysis uses 25 times more electricity than steam methane reforming with CCUS and 12 times more electricity than coal gasification with CCUS. Clean hydrogen production from fossil fuels with CCUS is also mature at commercial scale. Today there are four facilities in operation and two under construction that produce clean hydrogen from fossil fuels with CCUS at large scale (200 to 1,300 tonnes of hydrogen per day).
