Techno-economic analysis of ocean iron fertilization DOI Creative Commons
Cheryl Ward, Reinaldo Juan Lee Pereira, Spyros Foteinis

et al.

Frontiers in Climate, Journal Year: 2025, Volume and Issue: 7

Published: May 9, 2025

This study provides an updated, comprehensive framework for conducting a techno-economic assessment (TEA) of novel carbon dioxide removal approaches. Specifically, the is applied to scenario involving ocean iron fertilization (OIF) in Southern Ocean. The investigates whether cost elements, such as administrative and support labor, are accurately included standard methodologies proposes solutions characterizing prospective elements uncertainty CDR TEAs. first-of-a-kind (FOAK) levelized (LCOC) OIF deployment approximately $200 per tonne CO 2 . Learning rates applied, nth-of-a-kind (NOAK) costs decrease $180 A local sensitivity analysis indicates that oceanographic parameters, export efficiency biomass deep ocean, have greater impact on LCOC compared engineering parameters like equipment or materials. Nevertheless, large capital expenditures $120–160 million also significantly affect cost. effect these high-impact demonstrated by range from $25 $53,000 best- worst-case scenarios when varying values monitoring, reporting, verification (MRV) processes, losses due nutrient robbing, equivalent (CO e) N O production, ventilation atmosphere, net increase primary considered. Additionally, learning determining shown through less significant overall and, turn, future reductions parameter input uncertainties present. Based results, it recommended be better characterized additional research development reduce estimation. Methods deployment, including MRV should investigated minimize costs. proposed framework, bottom-up business analysis, other approaches provide consistent comparisons companies decision-makers, underpinning informed funding decisions space.

Language: Английский

Techno-economic analysis of ocean iron fertilization DOI Creative Commons
Cheryl Ward, Reinaldo Juan Lee Pereira, Spyros Foteinis

et al.

Frontiers in Climate, Journal Year: 2025, Volume and Issue: 7

Published: May 9, 2025

This study provides an updated, comprehensive framework for conducting a techno-economic assessment (TEA) of novel carbon dioxide removal approaches. Specifically, the is applied to scenario involving ocean iron fertilization (OIF) in Southern Ocean. The investigates whether cost elements, such as administrative and support labor, are accurately included standard methodologies proposes solutions characterizing prospective elements uncertainty CDR TEAs. first-of-a-kind (FOAK) levelized (LCOC) OIF deployment approximately $200 per tonne CO 2 . Learning rates applied, nth-of-a-kind (NOAK) costs decrease $180 A local sensitivity analysis indicates that oceanographic parameters, export efficiency biomass deep ocean, have greater impact on LCOC compared engineering parameters like equipment or materials. Nevertheless, large capital expenditures $120–160 million also significantly affect cost. effect these high-impact demonstrated by range from $25 $53,000 best- worst-case scenarios when varying values monitoring, reporting, verification (MRV) processes, losses due nutrient robbing, equivalent (CO e) N O production, ventilation atmosphere, net increase primary considered. Additionally, learning determining shown through less significant overall and, turn, future reductions parameter input uncertainties present. Based results, it recommended be better characterized additional research development reduce estimation. Methods deployment, including MRV should investigated minimize costs. proposed framework, bottom-up business analysis, other approaches provide consistent comparisons companies decision-makers, underpinning informed funding decisions space.

Language: Английский

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