AGR plant. For gasification applications, or Integrated Gasification Combined Cycle (IGCC), the plant modifications required to add the ability to capture CO2 are minimal. The syngas produced by the gasifiers needs to be treated through various processes for the removal of impurities already in the gas stream, so all that is required to remove CO2 is to add the necessary equipment, an absorber and regenerator, to this process train. In combustion applications, modifications must be made to the exhaust stack and because of the lower concentrations of CO2 present in the exhaust, much larger volumes of total gas require processing, necessitating larger and more expensive equipment. IGCC (Integrated Gasification Combined Cycle) based projects in the United States with CO2 capture and use/storage Mississippi Power's Kemper Project was designed as a lignite-fuel IGCC plant, generating a net 524 MW of power from syngas, while capturing over 65% of CO2 generated using the Selexol process. The technology at the Kemper facility, Transport-Integrated Gasification (TRIG), was developed and is licensed by KBR. The CO2 will be sent by pipeline to depleted oil fields in Mississippi for enhanced oil recovery operations. The plant missed all its targets and plans for "clean coal" generation were abandoned in July 2017. The plant is expected to go ahead burning natural gas only. Hydrogen Energy California (HECA) will be a 300MW net, coal and petroleum coke-fueled IGCC polygeneration plant (producing hydrogen for both power generation and fertilizer manufacture). Ninety percent of the CO2 produced will be captured (using Rectisol) and transported to Elk Hills Oil Field for EOR, enabling recovery of 5 million additional barrels of domestic oil per year. On March 4, 2016, the California Energy Commission ordered the HECA application to be terminated. Summit's Texas Clean Energy Project (TCEP) will be a coal-fueled, IGCC-based 400MW power/polygeneration project (also producing urea fertilizer), which will capture 90% of its CO2 in pre-combustion using the Rectisol process. The CO2 not used in fertilizer manufacture will be used for enhanced oil recovery in the West Texas Permian Basin. Plants such as the Texas Clean Energy Project which employ carbon capture and storage have been touted as a partial, or interim, solution to regulation issues if they can be made economically viable by improved design and mass production. There has been opposition from utility regulators and ratepayers due to increased cost; and from environmentalists such as Bill McKibben, who view any