Accounting for Carbon Capture and Storage
WASHINGTON, D.C. -- A new report recently released by the Center for Climate and Energy Solutions (C2ES) provides the first-ever comprehensive framework for calculating carbon dioxide (CO2) emission reductions from carbon capture and storage (CCS). The framework equips policymakers and project developers with common methodologies for quantifying the emission impacts of CCS projects.
CCS involves a suite of technologies that can be used to prevent CO2 from power plants and large industrial facilities from entering the atmosphere. The three main steps are capturing and compressing the CO2 , transporting it to suitable storage sites, and injecting it into geologic formations for secure and permanent storage. CCS technology has the potential to achieve dramatic reductions in CO2 emissions from the electricity sector, including from coal-fueled power plants.
'Ensuring reliable, affordable energy while reducing carbon emissions is a critical challenge, and in the years ahead, carbon capture and storage will likely be an essential part of the solution,' said C2ES President Eileen Claussen.
'This report provides an important technical foundation for crafting policies to put this technology to work to meet our energy, climate and economic objectives.'
The report, Greenhouse Gas Accounting Framework for Carbon Capture and Storage Projects, includes detailed methodologies to calculate emission reductions at each stage of the CCS process: CO2 capture, transport, and injection and storage. The methods were developed with input from CCS experts in industry, academia, and the environmental community (see report for list of participants).
For CO2 capture, the report outlines methods for multiple CO2 sources, including electric power plants with pre-combustion, post-combustion, or oxy-fired technologies, and industrial facilities involved in natural gas production, fertilizer manufacturing, and ethanol production. For CO2 transport, the framework focuses on pipelines, which are the most viable transportation option for large-scale CCS. With respect to the geological storage of CO2, the framework applies to saline aquifers, depleted oil and gas fields, and enhanced oil and gas recovery sites.
Worldwide, 15 large CCS projects are in operation or under construction, according to the Global CCS Institute. Their combined CO2 storage capacity exceeds 35 million tons a year, roughly equivalent to preventing the emissions from more than 6 million cars from entering the atmosphere each year. Four CCS projects - three in the U.S. and one in Canada - have started construction since 2010, and three of these are linked to enhanced oil recovery operations. Globally, 59 additional projects are in the planning stage.
C2ES also is facilitating the National Enhanced Oil Recovery Initiative, a group of policymakers and stakeholders seeking to increase U.S. domestic oil production and energy security and reduce greenhouse gas emissions through enhanced oil recovery (EOR) using captured CO2. Recommendations for federal and state policy to ramp up CO2-EOR will be released later this year.
Additional background about CCS is available in C2ES's Climate Techbook. For more information about the climate and energy challenge and the activities of C2ES, visit www.C2ES.org.
The full report is available for download here
The Center for Climate and Energy Solutions (C2ES) is an independent non-profit, non-partisan organization promoting strong policy and action to address the twin challenges of energy and climate change. Launched in November 2011, C2ES is the successor to the Pew Center on Global Climate Change, long recognized in the United States and abroad as an influential and pragmatic voice on climate issues.