Both facilities have retrofitted post-combustion capture technology units, and both offset a portion of the cost of CCS by selling captured CO2 for EOR (Folger, 2018). The Boundary Dam plant in Canada is the only other large-scale fossil-fueled power plant with CCS. The Petra Nova plant in Texas is a fossil-fueled power plant currently generating electricity and capturing over 1 million tons of CO2 /year (Folger, 2018). Unlike the Petra Nova and Boundary Dam plants, the La Porte plant does not reduce the amount of energy it produces when capturing carbon. For each unit of energy trapped in natural gas, the La Porte plant produces 0.8 units of electricity which compares favorably to the 0.6 units produced in the most advanced natural gas power plants (Rathi, 2018). Researchers have agreed with this assessment citing the concept’s movement toward commercializing its emissions-free technology (Rathi, 2018).Ĭompared to other CCS plants Net Power technologies are highly efficient. Net Power is building multiple power plants which Forbes described as a “game-changer” (Conca, 2019). A full-size plant is expected to be operational in 2022 and it will be able to generate 60,000 megawatts (Ryan, 2019). The La Porte plant produces 25 megawatts of power which is enough electricity to power 5,000 homes. The Allam cycle can generate electricity on a large scale. The Net Power pilot plant in the Texas city of La Porte is a proof of concept that uses the Allam cycle to generate power while capturing all of its CO2 emissions which can be sequestered in geologic formations or used to make things like plastic or fuel. These two companies are Net Power and Quest (for an explanation of how these plants operate see the methodology section of this paper). Both plants have been in operation for years and have amassed ample data to warrant scrutiny. Here are two examples of working CCS plants that are used in conjunction with fossil fuel-powered power plants. This includes Net Power and Quest which work exclusively in conjunction with fossil fuels, as well as the more flexible approaches of Carbon Engineering, Global Thermostat, Climeworks, and Carbfix. These six companies are those whose core activity is carbon capture and storage (CCS). Here is a technical assessment of six companies leading the carbon capture space.
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