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Impact of carbon dioxide removal technologies on deep decarbonization of the electric power sector

Also known as: Impact of carbon dioxide removal technologies on deep decarbonization of the electric power sector, Impact of carbon dioxide removal technologies on deep decarbonization

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Impact of carbon dioxide removal technologies on deep ... - Nature nature.com Nature Jun 17, 2021 14 facts

claimThe study 'Impact of carbon dioxide removal technologies on deep decarbonization' highlights that uncertainties in technological cost, performance, supporting policies, and public acceptance are key considerations for the role of carbon dioxide removal (CDR) technologies.

claimRenewables comprise the backbone of electric sector decarbonization scenarios, even when they do not constitute 100% of the generation mix, according to the analysis in the Nature article 'Impact of carbon dioxide removal technologies on deep decarbonization'.

claimAdding carbon dioxide removal (CDR) technologies to a mix of low-carbon generation technologies lowers the costs of achieving CO2 reduction goals in the electric sector, according to the study 'Impact of carbon dioxide removal technologies on deep decarbonization'.

measurementAn electric sector with Carbon Dioxide Removal (CDR) deployment can achieve almost 20% more CO2 reductions relative to 2005 levels compared to an all-renewable system for the same expenditure, according to the study 'Impact of carbon dioxide removal technologies on deep decarbonization strategies'.

claimThe analysis in the Nature article 'Impact of carbon dioxide removal technologies on deep decarbonization' illustrates that Carbon Dioxide Removal (CDR) options can enable gas turbines to serve as cost-effective substitutes for long-duration energy storage technologies for low-capacity-factor firm capacity.

measurementElectricity consumption from Direct Air Capture (DAC) is small relative to expected electrification and losses from energy storage, amounting to less than 5% of total load for most scenarios examined in the Nature article 'Impact of carbon dioxide removal technologies on deep decarbonization'.

measurementIn the study 'Impact of carbon dioxide removal technologies on deep decarbonization strategies', Bioenergy with Carbon Capture and Storage (BECCS) deployment saturates at 110% CO2 reductions (-243 Mt-CO2/year) due to increasing marginal biomass feedstock costs, at which point Direct Air Capture (DAC) becomes the least-cost Carbon Dioxide Removal (CDR) technology.

referenceThe analysis in the Nature article 'Impact of carbon dioxide removal technologies on deep decarbonization' is based on scenarios conducted in EPRI’s US REGEN model, which features an electric sector capacity planning and dispatch model linked to an end-use model with technological, temporal, and spatial detail.

claimDirect Air Capture (DAC) is unlikely to function as the flexibility resource for renewable integration that some have speculated, based on the value proposition demonstrated in the Nature article 'Impact of carbon dioxide removal technologies on deep decarbonization'.

claimThe article 'Impact of carbon dioxide removal technologies on deep decarbonization of the electric power sector' is licensed under a Creative Commons Attribution 4.0 International License.

measurementIn the study 'Impact of carbon dioxide removal technologies on deep decarbonization strategies', emissions reductions range from 70% to 140% below 2005 levels, corresponding to 729 to -972 Mt-CO2/year.

referenceThe Regional Economy, Greenhouse Gas, and Energy (REGEN) model, a state-of-the-art model of power sector investments and operations, is used in the Nature article 'Impact of carbon dioxide removal technologies on deep decarbonization' to investigate the role of carbon dioxide removal (CDR) on power sector outcomes under deep decarbonization scenarios for the USA.

claimThe deployment of Direct Air Capture (DAC) and Bioenergy with Carbon Capture and Storage (BECCS) leads to approximately net-zero economy-wide CO2 emissions in the scenarios analyzed in the study 'Impact of carbon dioxide removal technologies on deep decarbonization strategies'.

claimRenewable energy sources comprise the backbone of electric sector decarbonization scenarios, even when they do not constitute 100% of the generation mix, according to the study 'Impact of carbon dioxide removal technologies on deep decarbonization strategies'.